Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/tools/JInfo.java @ 12932:7fe6ef09d242
8025638: jmap returns 0 instead of 1 when it fails.
Summary: Re-factored some code handling return values and fails/errors during tool execution.
Reviewed-by: sla, kevinw
Contributed-by: fredrik.arvidsson@oracle.com
| author | farvidsson |
|---|---|
| date | Wed, 16 Oct 2013 09:20:23 +0200 |
| parents | 38ea2efa32a7 |
| children | b03f33670080 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.tools; | |
| 26 | |
| 27 import sun.jvm.hotspot.runtime.*; | |
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28 import sun.jvm.hotspot.debugger.JVMDebugger; |
| 0 | 29 |
| 30 public class JInfo extends Tool { | |
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31 public JInfo() { |
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32 super(); |
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33 } |
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34 |
| 0 | 35 public JInfo(int m) { |
| 36 mode = m; | |
| 37 } | |
| 38 | |
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39 public JInfo(JVMDebugger d) { |
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40 super(d); |
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41 } |
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42 |
| 0 | 43 protected boolean needsJavaPrefix() { |
| 44 return false; | |
| 45 } | |
| 46 | |
| 47 public String getName() { | |
| 48 return "jinfo"; | |
| 49 } | |
| 50 | |
| 51 protected void printFlagsUsage() { | |
| 52 System.out.println(" -flags\tto print VM flags"); | |
| 53 System.out.println(" -sysprops\tto print Java System properties"); | |
| 54 System.out.println(" <no option>\tto print both of the above"); | |
| 55 super.printFlagsUsage(); | |
| 56 } | |
| 57 | |
| 58 public static final int MODE_FLAGS = 0; | |
| 59 public static final int MODE_SYSPROPS = 1; | |
| 60 public static final int MODE_BOTH = 2; | |
| 61 | |
| 62 public void run() { | |
| 63 Tool tool = null; | |
| 64 switch (mode) { | |
| 65 case MODE_FLAGS: | |
| 66 printVMFlags(); | |
| 67 return; | |
| 68 case MODE_SYSPROPS: | |
| 69 tool = new SysPropsDumper(); | |
| 70 break; | |
| 71 case MODE_BOTH: { | |
| 72 tool = new Tool() { | |
| 73 public void run() { | |
| 74 Tool sysProps = new SysPropsDumper(); | |
| 75 sysProps.setAgent(getAgent()); | |
| 76 System.out.println("Java System Properties:"); | |
| 77 System.out.println(); | |
| 78 sysProps.run(); | |
| 79 System.out.println(); | |
| 80 System.out.println("VM Flags:"); | |
| 81 printVMFlags(); | |
| 82 System.out.println(); | |
| 83 } | |
| 84 }; | |
| 85 } | |
| 86 break; | |
| 87 | |
| 88 default: | |
| 89 usage(); | |
| 90 break; | |
| 91 } | |
| 92 tool.setAgent(getAgent()); | |
| 93 tool.run(); | |
| 94 } | |
| 95 | |
| 96 public static void main(String[] args) { | |
| 97 int mode = -1; | |
| 98 switch (args.length) { | |
| 99 case 1: | |
| 100 if (args[0].charAt(0) == '-') { | |
| 101 // -h or -help or some invalid flag | |
| 102 new JInfo(mode).usage(); | |
| 103 } else { | |
| 104 mode = MODE_BOTH; | |
| 105 } | |
| 106 break; | |
| 107 case 2: | |
| 108 case 3: { | |
| 109 String modeFlag = args[0]; | |
| 110 if (modeFlag.equals("-flags")) { | |
| 111 mode = MODE_FLAGS; | |
| 112 } else if (modeFlag.equals("-sysprops")) { | |
| 113 mode = MODE_SYSPROPS; | |
| 114 } else if (modeFlag.charAt(0) == '-') { | |
| 115 // -h or -help or some invalid flag | |
| 116 new JInfo(mode).usage(); | |
| 117 } else { | |
| 118 mode = MODE_BOTH; | |
| 119 } | |
| 120 | |
| 121 if (mode != MODE_BOTH) { | |
| 122 // we have to consume first flag argument. | |
| 123 String[] newArgs = new String[args.length - 1]; | |
| 124 for (int i = 0; i < newArgs.length; i++) { | |
| 125 newArgs[i] = args[i + 1]; | |
| 126 } | |
| 127 args = newArgs; | |
| 128 } | |
| 129 break; | |
| 130 } | |
| 131 | |
| 132 default: | |
| 133 new JInfo(mode).usage(); | |
| 134 } | |
| 135 | |
| 136 JInfo jinfo = new JInfo(mode); | |
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12932
7fe6ef09d242
8025638: jmap returns 0 instead of 1 when it fails.
farvidsson
parents:
11054
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137 jinfo.execute(args); |
| 0 | 138 } |
| 139 | |
| 140 private void printVMFlags() { | |
| 141 String str = Arguments.getJVMFlags(); | |
| 142 if (str != null) { | |
| 143 System.out.println(str); | |
| 144 } | |
| 145 str = Arguments.getJVMArgs(); | |
| 146 if (str != null) { | |
| 147 System.out.println(str); | |
| 148 } | |
| 149 } | |
| 150 | |
| 151 private int mode; | |
| 152 } |