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annotate test/compiler/uncommontrap/TestSpecTrapClassUnloading.java @ 14670:27689a7550a8

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8036092: [TESTBUG] compiler/uncommontrap/TestSpecTrapClassUnloading.java fails with: Unrecognized VM option 'UseTypeSpeculation' Summary: Add -XX:+IgnoreUnrecognizedVMOptions to @main/othervm to make the test pass on Client VM Reviewed-by: kvn, roland
author anoll
date Wed, 05 Mar 2014 06:08:19 +0100
parents fdad2932c73f
children 45b0159f30f2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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.
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22 */
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23
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24 /*
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25 * @test
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26 * @bug 8031752
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27 * @summary speculative traps need to be cleaned up at GC
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28 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation -XX:-UseOnStackReplacement -XX:-BackgroundCompilation -XX:+UnlockExperimentalVMOptions -XX:+UseTypeSpeculation -XX:TypeProfileLevel=222 -XX:CompileCommand=exclude,java.lang.reflect.Method::invoke -XX:CompileCommand=exclude,sun.reflect.DelegatingMethodAccessorImpl::invoke -Xmx1M TestSpecTrapClassUnloading
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29 *
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30 */
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31
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32 import java.lang.reflect.Method;
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33
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34 public class TestSpecTrapClassUnloading {
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35 static class B {
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36 final public boolean m(Object o) {
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37 if (o.getClass() == B.class) {
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38 return true;
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39 }
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40 return false;
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41 }
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42 }
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43
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44 static class MemoryChunk {
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45 MemoryChunk other;
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46 long[] array;
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47 MemoryChunk(MemoryChunk other) {
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48 other = other;
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49 array = new long[1024 * 1024 * 1024];
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50 }
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51 }
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52
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53 static void m1(B b, Object o) {
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54 b.m(o);
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55 }
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56
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57 static void m2(B b, Object o) {
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58 b.m(o);
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59 }
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60
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61 public static void main(String[] args) throws Exception {
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62 Method m = B.class.getMethod("m", Object.class);
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63 Object o = new Object();
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64 B b = new B();
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65
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66 // add speculative trap in B.m() for m1
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67 for (int i = 0; i < 20000; i++) {
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68 m1(b, b);
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69 }
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70 m1(b, o);
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71
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72 // add speculative trap in B.m() for code generated by reflection
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73 for (int i = 0; i < 20000; i++) {
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74 m.invoke(b, b);
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75 }
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76 m.invoke(b, o);
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77
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78 m = null;
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79
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80 // add speculative trap in B.m() for m2
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81 for (int i = 0; i < 20000; i++) {
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82 m2(b, b);
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83 }
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84 m2(b, o);
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85
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86 // Exhaust memory which causes the code generated by
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87 // reflection to be unloaded but B.m() is not.
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88 MemoryChunk root = null;
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89 try {
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90 while (true) {
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91 root = new MemoryChunk(root);
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92 }
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93 } catch(OutOfMemoryError e) {
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94 root = null;
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95 }
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96 }
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97 }