1 /* |
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2 * Copyright (c) 2015, 2018, 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 8072008 |
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27 * @requires vm.opt.final.ClassUnloading |
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28 * @library /test/lib ../patches |
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29 * @modules java.base/jdk.internal.misc |
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30 * java.base/jdk.internal.vm.annotation |
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31 * |
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32 * @build java.base/java.lang.invoke.MethodHandleHelper |
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33 * @build sun.hotspot.WhiteBox |
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34 * @run main/bootclasspath/othervm -XX:+IgnoreUnrecognizedVMOptions |
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35 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI |
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36 * -Xbatch -XX:-TieredCompilation -XX:CICompilerCount=1 |
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37 * -XX:+FoldStableValues |
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38 * compiler.jsr292.NonInlinedCall.GCTest |
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39 */ |
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40 |
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41 package compiler.jsr292.NonInlinedCall; |
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42 |
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43 import jdk.internal.vm.annotation.DontInline; |
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44 import jdk.internal.vm.annotation.Stable; |
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45 import sun.hotspot.WhiteBox; |
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46 |
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47 import java.lang.invoke.MethodHandle; |
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48 import java.lang.invoke.MethodHandleHelper; |
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49 import java.lang.invoke.MethodHandleHelper.NonInlinedReinvoker; |
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50 import java.lang.invoke.MethodHandles; |
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51 import java.lang.invoke.MethodType; |
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52 import java.lang.ref.PhantomReference; |
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53 import java.lang.ref.Reference; |
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54 import java.lang.ref.ReferenceQueue; |
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55 |
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56 import static jdk.test.lib.Asserts.assertEquals; |
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57 |
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58 public class GCTest { |
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59 static final MethodHandles.Lookup LOOKUP = MethodHandleHelper.IMPL_LOOKUP; |
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60 |
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61 static class T { |
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62 static int f1() { return 0; } |
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63 static int f2() { return 1; } |
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64 } |
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65 |
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66 static @Stable MethodHandle mh; |
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67 static PhantomReference<Object> lform; |
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68 |
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69 static final ReferenceQueue<Object> rq = new ReferenceQueue<>(); |
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70 static final WhiteBox WB = WhiteBox.getWhiteBox(); |
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71 |
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72 @DontInline |
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73 static int invokeBasic() { |
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74 try { |
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75 return MethodHandleHelper.invokeBasicI(mh); |
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76 } catch (Throwable e) { |
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77 throw new Error(e); |
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78 } |
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79 } |
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80 |
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81 static void test(int expected) { |
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82 for (int i = 0; i < 20_000; i++) { |
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83 invokeBasic(); |
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84 } |
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85 assertEquals(invokeBasic(), expected); |
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86 } |
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87 |
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88 public static void main(String[] args) throws Exception { |
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89 mh = NonInlinedReinvoker.make( |
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90 LOOKUP.findStatic(T.class, "f1", MethodType.methodType(int.class))); |
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91 |
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92 // Monitor LambdaForm GC |
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93 lform = new PhantomReference<>(MethodHandleHelper.getLambdaForm(mh), rq); |
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94 |
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95 test(0); |
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96 WB.clearInlineCaches(); |
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97 test(0); |
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98 |
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99 mh = NonInlinedReinvoker.make( |
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100 LOOKUP.findStatic(T.class, "f2", MethodType.methodType(int.class))); |
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101 |
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102 Reference<?> ref = null; |
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103 while (ref == null) { |
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104 WB.fullGC(); |
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105 try { |
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106 ref = rq.remove(1000); |
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107 } catch (InterruptedException e) { /*ignore*/ } |
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108 } |
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109 |
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110 test(1); |
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111 WB.clearInlineCaches(); |
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112 test(1); |
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113 |
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114 System.out.println("TEST PASSED"); |
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115 } |
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116 } |
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