91 WHITE_BOX.enqueueMethodForCompilation(m, CompilerWhiteBoxTest.COMP_LEVEL_SIMPLE);
92 }
93 // Because background compilation is disabled, method should now be compiled
94 if(!WHITE_BOX.isMethodCompiled(m)) {
95 throw new RuntimeException(m + " not compiled");
96 }
97 }
98 }
99
100 /**
101 * This test creates stale Klass* metadata referenced by a compiled IC.
102 *
103 * The following steps are performed:
104 * (1) An anonymous version of TestAnonymousClassUnloading is loaded by a custom class loader
105 * (2) The method doWork that calls a method of the anonymous class is compiled. The call
106 * is implemented as an IC referencing Klass* metadata of the anonymous class.
107 * (3) Unloading of the anonymous class is enforced. The IC now references dead metadata.
108 */
109 static public void main(String[] args) throws Exception {
110 // (1) Load an anonymous version of this class using the corresponding Unsafe method
111 URL classUrl = TestAnonymousClassUnloading.class.getResource(
112 TestAnonymousClassUnloading.class.getName().replace('.', '/') + ".class");
113 URLConnection connection = classUrl.openConnection();
114
115 int length = connection.getContentLength();
116 byte[] classBytes = connection.getInputStream().readAllBytes();
117 if (length != -1 && classBytes.length != length) {
118 throw new IOException("Expected:" + length + ", actual: " + classBytes.length);
119 }
120
121 Class<?> anonymousClass = UNSAFE.defineAnonymousClass(TestAnonymousClassUnloading.class, classBytes, null);
122
123 // (2) Make sure all paths of doWork are profiled and compiled
124 for (int i = 0; i < 100000; ++i) {
125 doWork(anonymousClass);
126 }
127
128 // Make sure doWork is compiled now
129 Method doWork = TestAnonymousClassUnloading.class.getDeclaredMethod("doWork", Class.class);
130 makeSureIsCompiled(doWork);
131
132 // (3) Throw away reference to anonymousClass to allow unloading
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91 WHITE_BOX.enqueueMethodForCompilation(m, CompilerWhiteBoxTest.COMP_LEVEL_SIMPLE);
92 }
93 // Because background compilation is disabled, method should now be compiled
94 if(!WHITE_BOX.isMethodCompiled(m)) {
95 throw new RuntimeException(m + " not compiled");
96 }
97 }
98 }
99
100 /**
101 * This test creates stale Klass* metadata referenced by a compiled IC.
102 *
103 * The following steps are performed:
104 * (1) An anonymous version of TestAnonymousClassUnloading is loaded by a custom class loader
105 * (2) The method doWork that calls a method of the anonymous class is compiled. The call
106 * is implemented as an IC referencing Klass* metadata of the anonymous class.
107 * (3) Unloading of the anonymous class is enforced. The IC now references dead metadata.
108 */
109 static public void main(String[] args) throws Exception {
110 // (1) Load an anonymous version of this class using the corresponding Unsafe method
111 String rn = TestAnonymousClassUnloading.class.getSimpleName() + ".class";
112 URL classUrl = TestAnonymousClassUnloading.class.getResource(rn);
113 URLConnection connection = classUrl.openConnection();
114
115 int length = connection.getContentLength();
116 byte[] classBytes = connection.getInputStream().readAllBytes();
117 if (length != -1 && classBytes.length != length) {
118 throw new IOException("Expected:" + length + ", actual: " + classBytes.length);
119 }
120
121 Class<?> anonymousClass = UNSAFE.defineAnonymousClass(TestAnonymousClassUnloading.class, classBytes, null);
122
123 // (2) Make sure all paths of doWork are profiled and compiled
124 for (int i = 0; i < 100000; ++i) {
125 doWork(anonymousClass);
126 }
127
128 // Make sure doWork is compiled now
129 Method doWork = TestAnonymousClassUnloading.class.getDeclaredMethod("doWork", Class.class);
130 makeSureIsCompiled(doWork);
131
132 // (3) Throw away reference to anonymousClass to allow unloading
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