truffle: test/runtime/Thread/TestThreadDumpMonitorContention.java annotate

annotate test/runtime/Thread/TestThreadDumpMonitorContention.java @ 17984:22146594cd5a

8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 Summary: Added a new header waiting pattern to catch the case where the target thread waiting on a condition (like a VM op); several other test improvements Reviewed-by: sspitsyn, dholmes

author	dcubed
date	Thu, 12 Jun 2014 15:57:16 -0700
parents	4a1062dc52d1
children

rev	line source
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	1 /*
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	4 *
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	7 * published by the Free Software Foundation.
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	8 *
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	13 * accompanied this code).
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	14 *
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	18 *
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	20 * or visit www.oracle.com if you need additional information or have any
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	21 * questions.
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	22 */
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	23
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	24 /*
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	25 * @test
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	26 * @bug 8036823
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	27 * @bug 8046287
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	28 * @summary Creates two threads contending for the same lock and checks
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	29 * whether jstack reports "locked" by more than one thread.
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	30 *
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	31 * @library /testlibrary
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	32 * @run main/othervm TestThreadDumpMonitorContention
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	33 */
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	34
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	35 import java.io.BufferedReader;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	36 import java.io.InputStreamReader;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	37 import java.lang.management.ManagementFactory;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	38 import java.lang.management.RuntimeMXBean;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	39 import java.util.ArrayList;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	40 import java.util.List;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	41 import java.util.regex.Matcher;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	42 import java.util.regex.Pattern;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	43
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	44 import com.oracle.java.testlibrary.*;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	45
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	46 public class TestThreadDumpMonitorContention {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	47 // jstack tends to be closely bound to the VM that we are running
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	48 // so use getTestJDKTool() instead of getCompileJDKTool() or even
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	49 // getJDKTool() which can fall back to "compile.jdk".
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	50 final static String JSTACK = JDKToolFinder.getTestJDKTool("jstack");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	51 final static String PID = getPid();
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	52
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	53 // looking for header lines with these patterns:
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	54 // "ContendingThread-1" #19 prio=5 os_prio=64 tid=0x000000000079c000 nid=0x23 runnable [0xffff80ffb8b87000]
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	55 // "ContendingThread-2" #21 prio=5 os_prio=64 tid=0x0000000000780000 nid=0x2f waiting for monitor entry [0xfffffd7fc1111000]
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	56 // "ContendingThread-2" #24 prio=5 os_prio=64 tid=0x0000000000ec8800 nid=0x31 waiting on condition [0xfffffd7bbfffe000]
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	57 final static Pattern HEADER_PREFIX_PATTERN = Pattern.compile(
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	58 "^\"ContendingThread-.*");
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	59 final static Pattern HEADER_WAITING_PATTERN1 = Pattern.compile(
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	60 "^\"ContendingThread-.* waiting for monitor entry .*");
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	61 final static Pattern HEADER_WAITING_PATTERN2 = Pattern.compile(
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	62 "^\"ContendingThread-.* waiting on condition .*");
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	63 final static Pattern HEADER_RUNNABLE_PATTERN = Pattern.compile(
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	64 "^\"ContendingThread-.* runnable .*");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	65
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	66 // looking for thread state lines with these patterns:
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	67 // java.lang.Thread.State: RUNNABLE
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	68 // java.lang.Thread.State: BLOCKED (on object monitor)
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	69 final static Pattern THREAD_STATE_PREFIX_PATTERN = Pattern.compile(
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	70 " java\\.lang\\.Thread\\.State: .");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	71 final static Pattern THREAD_STATE_BLOCKED_PATTERN = Pattern.compile(
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	72 " *java\\.lang\\.Thread\\.State: BLOCKED \$on object monitor\$");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	73 final static Pattern THREAD_STATE_RUNNABLE_PATTERN = Pattern.compile(
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	74 " *java\\.lang\\.Thread\\.State: RUNNABLE");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	75
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	76 // looking for duplicates of this pattern:
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	77 // - locked <0x000000076ac59e20> (a TestThreadDumpMonitorContention$1)
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	78 final static Pattern LOCK_PATTERN = Pattern.compile(
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	79 ".* locked \\<.\\(a TestThreadDumpMonitorContention.");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	80
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	81 // sanity checking header and thread state lines associated
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	82 // with this pattern:
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	83 // - waiting to lock <0x000000076ac59e20> (a TestThreadDumpMonitorContention$1)
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	84 final static Pattern WAITING_PATTERN = Pattern.compile(
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	85 ".* waiting to lock \\<.\\(a TestThreadDumpMonitorContention.");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	86
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	87 final static Object barrier = new Object();
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	88 volatile static boolean done = false;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	89
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	90 static int barrier_cnt = 0;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	91 static int blank_line_match_cnt = 0;
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	92 static int error_cnt = 0;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	93 static boolean have_header_line = false;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	94 static boolean have_thread_state_line = false;
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	95 static String header_line = null;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	96 static int header_prefix_match_cnt = 0;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	97 static int locked_line_match_cnt = 0;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	98 static String[] locked_match_list = new String[2];
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	99 static int n_samples = 15;
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	100 static int sum_both_running_cnt = 0;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	101 static int sum_both_waiting_cnt = 0;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	102 static int sum_contended_cnt = 0;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	103 static int sum_locked_hdr_runnable_cnt = 0;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	104 static int sum_locked_hdr_waiting1_cnt = 0;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	105 static int sum_locked_hdr_waiting2_cnt = 0;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	106 static int sum_locked_thr_state_blocked_cnt = 0;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	107 static int sum_locked_thr_state_runnable_cnt = 0;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	108 static int sum_one_waiting_cnt = 0;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	109 static int sum_uncontended_cnt = 0;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	110 static int sum_waiting_hdr_waiting1_cnt = 0;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	111 static int sum_waiting_thr_state_blocked_cnt = 0;
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	112 static String thread_state_line = null;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	113 static boolean verbose = false;
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	114 static int waiting_line_match_cnt = 0;
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	115
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	116 public static void main(String[] args) throws Exception {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	117 if (args.length != 0) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	118 int arg_i = 0;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	119 if (args[arg_i].equals("-v")) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	120 verbose = true;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	121 arg_i++;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	122 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	123
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	124 try {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	125 n_samples = Integer.parseInt(args[arg_i]);
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	126 } catch (NumberFormatException nfe) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	127 System.err.println(nfe);
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	128 usage();
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	129 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	130 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	131
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	132 Runnable runnable = new Runnable() {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	133 public void run() {
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	134 synchronized (barrier) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	135 // let the main thread know we're running
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	136 barrier_cnt++;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	137 barrier.notify();
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	138 }
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	139 while (!done) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	140 synchronized (this) { }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	141 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	142 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	143 };
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	144 Thread[] thread_list = new Thread[2];
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	145 thread_list[0] = new Thread(runnable, "ContendingThread-1");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	146 thread_list[1] = new Thread(runnable, "ContendingThread-2");
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	147 synchronized (barrier) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	148 thread_list[0].start();
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	149 thread_list[1].start();
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	150
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	151 // Wait until the contending threads are running so that
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	152 // we don't sample any thread init states.
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	153 while (barrier_cnt < 2) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	154 barrier.wait();
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	155 }
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	156 }
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	157
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	158 doSamples();
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	159
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	160 done = true;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	161
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	162 thread_list[0].join();
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	163 thread_list[1].join();
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	164
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	165 if (error_cnt == 0) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	166 System.out.println("Test PASSED.");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	167 } else {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	168 System.out.println("Test FAILED.");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	169 throw new AssertionError("error_cnt=" + error_cnt);
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	170 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	171 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	172
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	173 // Reached a blank line which is the end of the
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	174 // stack trace without matching either LOCK_PATTERN
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	175 // or WAITING_PATTERN. Rare, but it's not an error.
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	176 //
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	177 // Example:
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	178 // "ContendingThread-1" #21 prio=5 os_prio=64 tid=0x00000000007b9000 nid=0x2f runnable [0xfffffd7fc1111000]
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	179 // java.lang.Thread.State: RUNNABLE
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	180 // at TestThreadDumpMonitorContention$1.run(TestThreadDumpMonitorContention.java:140)
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	181 // at java.lang.Thread.run(Thread.java:745)
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	182 //
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	183 static boolean checkBlankLine(String line) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	184 if (line.length() == 0) {
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	185 blank_line_match_cnt++;
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	186 have_header_line = false;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	187 have_thread_state_line = false;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	188 return true;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	189 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	190
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	191 return false;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	192 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	193
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	194 // Process the locked line here if we found one.
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	195 //
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	196 // Example 1:
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	197 // "ContendingThread-1" #21 prio=5 os_prio=64 tid=0x00000000007b9000 nid=0x2f runnable [0xfffffd7fc1111000]
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	198 // java.lang.Thread.State: RUNNABLE
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	199 // at TestThreadDumpMonitorContention$1.run(TestThreadDumpMonitorContention.java:140)
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	200 // - locked <0xfffffd7e6a2912f8> (a TestThreadDumpMonitorContention$1)
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	201 // at java.lang.Thread.run(Thread.java:745)
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	202 //
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	203 // Example 2:
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	204 // "ContendingThread-1" #21 prio=5 os_prio=64 tid=0x00000000007b9000 nid=0x2f waiting for monitor entry [0xfffffd7fc1111000]
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	205 // java.lang.Thread.State: BLOCKED (on object monitor)
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	206 // at TestThreadDumpMonitorContention$1.run(TestThreadDumpMonitorContention.java:140)
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	207 // - locked <0xfffffd7e6a2912f8> (a TestThreadDumpMonitorContention$1)
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	208 // at java.lang.Thread.run(Thread.java:745)
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	209 //
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	210 // Example 3:
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	211 // "ContendingThread-2" #24 prio=5 os_prio=64 tid=0x0000000000ec8800 nid=0x31 waiting on condition [0xfffffd7bbfffe000]
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	212 // java.lang.Thread.State: RUNNABLE
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	213 // JavaThread state: _thread_blocked
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	214 // Thread: 0x0000000000ec8800 [0x31] State: _at_safepoint _has_called_back 0 _at_poll_safepoint 0
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	215 // JavaThread state: _thread_blocked
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	216 // at TestThreadDumpMonitorContention$1.run(TestThreadDumpMonitorContention.java:140)
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	217 // - locked <0xfffffd7e6d03eb28> (a TestThreadDumpMonitorContention$1)
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	218 // at java.lang.Thread.run(Thread.java:745)
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	219 //
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	220 static boolean checkLockedLine(String line) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	221 Matcher matcher = LOCK_PATTERN.matcher(line);
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	222 if (matcher.matches()) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	223 if (verbose) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	224 System.out.println("locked_line='" + line + "'");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	225 }
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	226 locked_match_list[locked_line_match_cnt] = new String(line);
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	227 locked_line_match_cnt++;
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	228
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	229 matcher = HEADER_RUNNABLE_PATTERN.matcher(header_line);
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	230 if (matcher.matches()) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	231 sum_locked_hdr_runnable_cnt++;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	232 } else {
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	233 // It's strange, but a locked line can also
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	234 // match the HEADER_WAITING_PATTERN{1,2}.
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	235 matcher = HEADER_WAITING_PATTERN1.matcher(header_line);
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	236 if (matcher.matches()) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	237 sum_locked_hdr_waiting1_cnt++;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	238 } else {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	239 matcher = HEADER_WAITING_PATTERN2.matcher(header_line);
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	240 if (matcher.matches()) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	241 sum_locked_hdr_waiting2_cnt++;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	242 } else {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	243 System.err.println();
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	244 System.err.println("ERROR: header line does " +
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	245 "not match runnable or waiting patterns.");
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	246 System.err.println("ERROR: header_line='" +
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	247 header_line + "'");
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	248 System.err.println("ERROR: locked_line='" + line +
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	249 "'");
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	250 error_cnt++;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	251 }
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	252 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	253 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	254
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	255 matcher = THREAD_STATE_RUNNABLE_PATTERN.matcher(thread_state_line);
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	256 if (matcher.matches()) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	257 sum_locked_thr_state_runnable_cnt++;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	258 } else {
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	259 // It's strange, but a locked line can also
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	260 // match the THREAD_STATE_BLOCKED_PATTERN.
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	261 matcher = THREAD_STATE_BLOCKED_PATTERN.matcher(
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	262 thread_state_line);
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	263 if (matcher.matches()) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	264 sum_locked_thr_state_blocked_cnt++;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	265 } else {
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	266 System.err.println();
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	267 System.err.println("ERROR: thread state line does not " +
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	268 "match runnable or waiting patterns.");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	269 System.err.println("ERROR: " + "thread_state_line='" +
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	270 thread_state_line + "'");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	271 System.err.println("ERROR: locked_line='" + line + "'");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	272 error_cnt++;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	273 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	274 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	275
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	276 // Have everything we need from this thread stack
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	277 // that matches the LOCK_PATTERN.
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	278 have_header_line = false;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	279 have_thread_state_line = false;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	280 return true;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	281 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	282
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	283 return false;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	284 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	285
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	286 // Process the waiting line here if we found one.
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	287 //
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	288 // Example:
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	289 // "ContendingThread-2" #22 prio=5 os_prio=64 tid=0x00000000007b9800 nid=0x30 waiting for monitor entry [0xfffffd7fc1010000]
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	290 // java.lang.Thread.State: BLOCKED (on object monitor)
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	291 // at TestThreadDumpMonitorContention$1.run(TestThreadDumpMonitorContention.java:140)
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	292 // - waiting to lock <0xfffffd7e6a2912f8> (a TestThreadDumpMonitorContention$1)
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	293 // at java.lang.Thread.run(Thread.java:745)
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	294 //
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	295 static boolean checkWaitingLine(String line) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	296 Matcher matcher = WAITING_PATTERN.matcher(line);
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	297 if (matcher.matches()) {
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	298 waiting_line_match_cnt++;
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	299 if (verbose) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	300 System.out.println("waiting_line='" + line + "'");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	301 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	302
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	303 matcher = HEADER_WAITING_PATTERN1.matcher(header_line);
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	304 if (matcher.matches()) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	305 sum_waiting_hdr_waiting1_cnt++;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	306 } else {
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	307 System.err.println();
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	308 System.err.println("ERROR: header line does " +
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	309 "not match a waiting pattern.");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	310 System.err.println("ERROR: header_line='" + header_line + "'");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	311 System.err.println("ERROR: waiting_line='" + line + "'");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	312 error_cnt++;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	313 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	314
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	315 matcher = THREAD_STATE_BLOCKED_PATTERN.matcher(thread_state_line);
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	316 if (matcher.matches()) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	317 sum_waiting_thr_state_blocked_cnt++;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	318 } else {
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	319 System.err.println();
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	320 System.err.println("ERROR: thread state line " +
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	321 "does not match a waiting pattern.");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	322 System.err.println("ERROR: thread_state_line='" +
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	323 thread_state_line + "'");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	324 System.err.println("ERROR: waiting_line='" + line + "'");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	325 error_cnt++;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	326 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	327
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	328 // Have everything we need from this thread stack
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	329 // that matches the WAITING_PATTERN.
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	330 have_header_line = false;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	331 have_thread_state_line = false;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	332 return true;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	333 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	334
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	335 return false;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	336 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	337
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	338 static void doSamples() throws Exception {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	339 for (int count = 0; count < n_samples; count++) {
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	340 blank_line_match_cnt = 0;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	341 header_prefix_match_cnt = 0;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	342 locked_line_match_cnt = 0;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	343 waiting_line_match_cnt = 0;
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	344 // verbose mode or an error has a lot of output so add more space
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	345 if (verbose \|\| error_cnt > 0) System.out.println();
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	346 System.out.println("Sample #" + count);
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	347
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	348 // We don't use the ProcessTools, OutputBuffer or
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	349 // OutputAnalyzer classes from the testlibrary because
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	350 // we have a complicated multi-line parse to perform
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	351 // on a narrow subset of the JSTACK output.
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	352 //
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	353 // - we only care about stack traces that match
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	354 // HEADER_PREFIX_PATTERN; only two should match
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	355 // - we care about at most three lines from each stack trace
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	356 // - if both stack traces match LOCKED_PATTERN, then that's
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	357 // a failure and we report it
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	358 // - for a stack trace that matches LOCKED_PATTERN, we verify:
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	359 // - the header line matches HEADER_RUNNABLE_PATTERN
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	360 // or HEADER_WAITING_PATTERN{1,2}
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	361 // - the thread state line matches THREAD_STATE_BLOCKED_PATTERN
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	362 // or THREAD_STATE_RUNNABLE_PATTERN
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	363 // - we report any mismatches as failures
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	364 // - for a stack trace that matches WAITING_PATTERN, we verify:
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	365 // - the header line matches HEADER_WAITING_PATTERN1
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	366 // - the thread state line matches THREAD_STATE_BLOCKED_PATTERN
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	367 // - we report any mismatches as failures
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	368 // - the stack traces that match HEADER_PREFIX_PATTERN may
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	369 // not match either LOCKED_PATTERN or WAITING_PATTERN
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	370 // because we might observe the thread outside of
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	371 // monitor operations; this is not considered a failure
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	372 //
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	373 // When we do observe LOCKED_PATTERN or WAITING_PATTERN,
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	374 // then we are checking the header and thread state patterns
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	375 // that occurred earlier in the current stack trace that
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	376 // matched HEADER_PREFIX_PATTERN. We don't use data from
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	377 // stack traces that don't match HEADER_PREFIX_PATTERN and
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	378 // we don't mix data between the two stack traces that do
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	379 // match HEADER_PREFIX_PATTERN.
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	380 //
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	381 Process process = new ProcessBuilder(JSTACK, PID)
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	382 .redirectErrorStream(true).start();
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	383
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	384 BufferedReader reader = new BufferedReader(new InputStreamReader(
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	385 process.getInputStream()));
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	386 String line;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	387 while ((line = reader.readLine()) != null) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	388 Matcher matcher = null;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	389
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	390 // process the header line here
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	391 if (!have_header_line) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	392 matcher = HEADER_PREFIX_PATTERN.matcher(line);
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	393 if (matcher.matches()) {
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	394 header_prefix_match_cnt++;
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	395 if (verbose) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	396 System.out.println();
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	397 System.out.println("header='" + line + "'");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	398 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	399 header_line = new String(line);
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	400 have_header_line = true;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	401 continue;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	402 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	403 continue; // skip until have a header line
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	404 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	405
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	406 // process the thread state line here
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	407 if (!have_thread_state_line) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	408 matcher = THREAD_STATE_PREFIX_PATTERN.matcher(line);
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	409 if (matcher.matches()) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	410 if (verbose) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	411 System.out.println("thread_state='" + line + "'");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	412 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	413 thread_state_line = new String(line);
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	414 have_thread_state_line = true;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	415 continue;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	416 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	417 continue; // skip until we have a thread state line
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	418 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	419
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	420 // process the locked line here if we find one
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	421 if (checkLockedLine(line)) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	422 continue;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	423 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	424
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	425 // process the waiting line here if we find one
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	426 if (checkWaitingLine(line)) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	427 continue;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	428 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	429
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	430 // process the blank line here if we find one
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	431 if (checkBlankLine(line)) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	432 continue;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	433 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	434 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	435 process.waitFor();
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	436
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	437 if (header_prefix_match_cnt != 2) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	438 System.err.println();
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	439 System.err.println("ERROR: should match exactly two headers.");
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	440 System.err.println("ERROR: header_prefix_match_cnt=" +
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	441 header_prefix_match_cnt);
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	442 error_cnt++;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	443 }
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	444
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	445 if (locked_line_match_cnt == 2) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	446 if (locked_match_list[0].equals(locked_match_list[1])) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	447 System.err.println();
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	448 System.err.println("ERROR: matching lock lines:");
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	449 System.err.println("ERROR: line[0]'" +
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	450 locked_match_list[0] + "'");
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	451 System.err.println("ERROR: line[1]'" +
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	452 locked_match_list[1] + "'");
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	453 error_cnt++;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	454 }
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	455 }
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	456
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	457 if (locked_line_match_cnt == 1) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	458 // one thread has the lock
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	459 if (waiting_line_match_cnt == 1) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	460 // and the other contended for it
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	461 sum_contended_cnt++;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	462 } else {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	463 // and the other is just running
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	464 sum_uncontended_cnt++;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	465 }
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	466 } else if (waiting_line_match_cnt == 1) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	467 // one thread is waiting
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	468 sum_one_waiting_cnt++;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	469 } else if (waiting_line_match_cnt == 2) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	470 // both threads are waiting
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	471 sum_both_waiting_cnt++;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	472 } else {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	473 // both threads are running
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	474 sum_both_running_cnt++;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	475 }
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	476
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	477 // slight delay between jstack launches
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	478 Thread.sleep(500);
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	479 }
17984 22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	480
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	481 if (error_cnt != 0) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	482 // skip summary info since there were errors
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	483 return;
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	484 }
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	485
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	486 System.out.println("INFO: Summary for all samples:");
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	487 System.out.println("INFO: both_running_cnt=" + sum_both_running_cnt);
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	488 System.out.println("INFO: both_waiting_cnt=" + sum_both_waiting_cnt);
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	489 System.out.println("INFO: contended_cnt=" + sum_contended_cnt);
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	490 System.out.println("INFO: one_waiting_cnt=" + sum_one_waiting_cnt);
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	491 System.out.println("INFO: uncontended_cnt=" + sum_uncontended_cnt);
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	492 System.out.println("INFO: locked_hdr_runnable_cnt=" +
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	493 sum_locked_hdr_runnable_cnt);
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	494 System.out.println("INFO: locked_hdr_waiting1_cnt=" +
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	495 sum_locked_hdr_waiting1_cnt);
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	496 System.out.println("INFO: locked_hdr_waiting2_cnt=" +
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	497 sum_locked_hdr_waiting2_cnt);
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	498 System.out.println("INFO: locked_thr_state_blocked_cnt=" +
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	499 sum_locked_thr_state_blocked_cnt);
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	500 System.out.println("INFO: locked_thr_state_runnable_cnt=" +
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	501 sum_locked_thr_state_runnable_cnt);
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	502 System.out.println("INFO: waiting_hdr_waiting1_cnt=" +
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	503 sum_waiting_hdr_waiting1_cnt);
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	504 System.out.println("INFO: waiting_thr_state_blocked_cnt=" +
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	505 sum_waiting_thr_state_blocked_cnt);
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	506
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	507 if (sum_contended_cnt == 0) {
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	508 System.err.println("WARNING: the primary scenario for 8036823" +
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	509 " has not been exercised by this test run.");
22146594cd5a 8046287: [TESTBUG] runtime/Thread/TestThreadDumpMonitorContention.java failed error_cnt=12 dcubed parents: 17965 diff changeset	510 }
17965 4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	511 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	512
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	513 // This helper relies on RuntimeMXBean.getName() returning a string
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	514 // that looks like this: 5436@mt-haku
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	515 //
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	516 // The testlibrary has tryFindJvmPid(), but that uses a separate
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	517 // process which is much more expensive for finding out your own PID.
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	518 //
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	519 static String getPid() {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	520 RuntimeMXBean runtimebean = ManagementFactory.getRuntimeMXBean();
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	521 String vmname = runtimebean.getName();
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	522 int i = vmname.indexOf('@');
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	523 if (i != -1) {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	524 vmname = vmname.substring(0, i);
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	525 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	526 return vmname;
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	527 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	528
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	529 static void usage() {
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	530 System.err.println("Usage: " +
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	531 "java TestThreadDumpMonitorContention [-v] [n_samples]");
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	532 System.exit(1);
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	533 }
4a1062dc52d1 8036823: Stack trace sometimes shows 'locked' instead of 'waiting to lock' dcubed parents: diff changeset	534 }

Mercurial > hg > truffle

annotate test/runtime/Thread/TestThreadDumpMonitorContention.java @ 17984:22146594cd5a