author | erikj |
Tue, 12 Sep 2017 19:03:39 +0200 | |
changeset 47216 | 71c04702a3d5 |
parent 41911 | jdk/test/java/lang/StackWalker/VerifyStackTrace.java@b3bb62588635 |
child 49066 | 4aa67aba6c85 |
permissions | -rw-r--r-- |
34362 | 1 |
/* |
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* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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import java.lang.reflect.InvocationTargetException; |
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import java.security.AccessController; |
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import java.security.PrivilegedAction; |
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import java.util.EnumSet; |
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import java.util.concurrent.atomic.AtomicLong; |
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import java.lang.StackWalker.StackFrame; |
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import java.lang.invoke.MethodHandle; |
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import java.lang.invoke.MethodHandles; |
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import java.lang.invoke.MethodType; |
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import java.util.Objects; |
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import static java.lang.StackWalker.Option.*; |
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/** |
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* @test |
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* @bug 8140450 |
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* @summary Verify stack trace information obtained with respect to StackWalker |
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* options, when the stack contains lambdas, method handle invoke |
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* virtual calls, and reflection. |
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* @run main/othervm VerifyStackTrace |
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* @run main/othervm/java.security.policy=stackwalk.policy VerifyStackTrace |
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* @author danielfuchs |
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*/ |
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public class VerifyStackTrace { |
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static interface TestCase { |
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StackWalker walker(); |
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String description(); |
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String expected(); |
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} |
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static final class TestCase1 implements TestCase { |
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private final StackWalker walker = StackWalker.getInstance(RETAIN_CLASS_REFERENCE); |
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private final String description = "StackWalker.getInstance(" + |
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"StackWalker.Option.RETAIN_CLASS_REFERENCE)"; |
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// Note: line numbers and lambda hashes will be erased when |
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// comparing stack traces. However, the stack may change |
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// if some methods are being renamed in the code base. |
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// If the JDKcode base changes and the test fails because of that, |
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// then after validating that the actual stack trace obtained |
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// is indeed correct (no frames are skipped that shouldn't) |
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// then you can cut & paste the <-- actual --> stack printed in the |
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// test output in here: |
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private final String expected = |
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"1: VerifyStackTrace.lambda$test$1(VerifyStackTrace.java:209)\n" + |
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"2: VerifyStackTrace$Handle.execute(VerifyStackTrace.java:145)\n" + |
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"3: VerifyStackTrace$Handle.run(VerifyStackTrace.java:158)\n" + |
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"4: VerifyStackTrace.invoke(VerifyStackTrace.java:188)\n" + |
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"5: VerifyStackTrace$1.run(VerifyStackTrace.java:218)\n" + |
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"6: java.base/java.security.AccessController.doPrivileged(Native Method)\n" + |
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"7: VerifyStackTrace.test(VerifyStackTrace.java:227)\n" + |
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"8: VerifyStackTrace.main(VerifyStackTrace.java:182)\n"; |
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@Override public StackWalker walker() { return walker;} |
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@Override public String description() { return description;} |
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@Override public String expected() { return expected;} |
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} |
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static final class TestCase2 implements TestCase { |
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private final StackWalker walker = StackWalker.getInstance( |
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EnumSet.of(RETAIN_CLASS_REFERENCE, SHOW_REFLECT_FRAMES)); |
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private final String description = "nStackWalker.getInstance(" + |
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"StackWalker.Option.RETAIN_CLASS_REFERENCE, " + |
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"StackWalker.Option.SHOW_REFLECT_FRAMES)"; |
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// Note: line numbers and lambda hashes will be erased when |
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// comparing stack traces. However, the stack may change |
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// if some methods are being renamed in the code base. |
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// If the JDK code base changes and the test fails because of that, |
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// then after validating that the actual stack trace obtained |
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// is indeed correct (no frames are skipped that shouldn't) |
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// then you can cut & paste the <-- actual --> stack printed in the |
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// test output in here (don't forget the final \n): |
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private final String expected = |
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"1: VerifyStackTrace.lambda$test$1(VerifyStackTrace.java:211)\n" + |
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"2: VerifyStackTrace$Handle.execute(VerifyStackTrace.java:147)\n" + |
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"3: VerifyStackTrace$Handle.run(VerifyStackTrace.java:160)\n" + |
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"4: VerifyStackTrace.invoke(VerifyStackTrace.java:190)\n" + |
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"5: java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\n" + |
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"6: java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)\n" + |
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"7: java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\n" + |
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"8: java.base/java.lang.reflect.Method.invoke(Method.java:520)\n" + |
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"9: VerifyStackTrace$1.run(VerifyStackTrace.java:220)\n" + |
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"10: java.base/java.security.AccessController.doPrivileged(Native Method)\n" + |
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"11: VerifyStackTrace.test(VerifyStackTrace.java:229)\n" + |
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"12: VerifyStackTrace.main(VerifyStackTrace.java:185)\n"; |
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@Override public StackWalker walker() { return walker;} |
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@Override public String description() { return description;} |
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@Override public String expected() { return expected;} |
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} |
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static class TestCase3 implements TestCase { |
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private final StackWalker walker = StackWalker.getInstance( |
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EnumSet.of(RETAIN_CLASS_REFERENCE, SHOW_HIDDEN_FRAMES)); |
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private final String description = "StackWalker.getInstance(" + |
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"StackWalker.Option.RETAIN_CLASS_REFERENCE, " + |
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"StackWalker.Option.SHOW_HIDDEN_FRAMES)"; |
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// Note: line numbers and lambda hashes will be erased when |
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// comparing stack traces. However, the stack may change |
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// if some methods are being renamed in the code base. |
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// If the JDK code base changes and the test fails because of that, |
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// then after validating that the actual stack trace obtained |
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// is indeed correct (no frames are skipped that shouldn't) |
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// then you can cut & paste the <-- actual --> stack printed in the |
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// test output in here (don't forget the final \n): |
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private final String expected = |
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"1: VerifyStackTrace.lambda$test$1(VerifyStackTrace.java:213)\n" + |
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"2: VerifyStackTrace$$Lambda$1/662441761.run(Unknown Source)\n" + |
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"3: VerifyStackTrace$Handle.execute(VerifyStackTrace.java:149)\n" + |
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"4: java.base/java.lang.invoke.LambdaForm$DMH/2008017533.invokeVirtual_LL_V(LambdaForm$DMH)\n" + |
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"5: java.base/java.lang.invoke.LambdaForm$MH/1395089624.invoke_MT(LambdaForm$MH)\n" + |
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"6: VerifyStackTrace$Handle.run(VerifyStackTrace.java:162)\n" + |
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"7: VerifyStackTrace.invoke(VerifyStackTrace.java:192)\n" + |
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"8: java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\n" + |
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"9: java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)\n" + |
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"10: java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\n" + |
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"11: java.base/java.lang.reflect.Method.invoke(Method.java:520)\n" + |
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"12: VerifyStackTrace$1.run(VerifyStackTrace.java:222)\n" + |
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"13: java.base/java.security.AccessController.doPrivileged(Native Method)\n" + |
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"14: VerifyStackTrace.test(VerifyStackTrace.java:231)\n" + |
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"15: VerifyStackTrace.main(VerifyStackTrace.java:188)\n"; |
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@Override public StackWalker walker() { return walker;} |
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@Override public String description() { return description;} |
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@Override public String expected() { return expected;} |
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} |
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static final class TestCase4 extends TestCase3 { |
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private final StackWalker walker = StackWalker.getInstance( |
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EnumSet.allOf(StackWalker.Option.class)); |
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private final String description = "StackWalker.getInstance(" + |
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"StackWalker.Option.RETAIN_CLASS_REFERENCE, " + |
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"StackWalker.Option.SHOW_HIDDEN_FRAMES, " + |
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"StackWalker.Option.SHOW_REFLECT_FRAMES)"; |
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@Override public StackWalker walker() {return walker;} |
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@Override public String description() {return description;} |
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} |
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public static class Handle implements Runnable { |
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Runnable impl; |
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public Handle(Runnable run) { |
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this.impl = run; |
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} |
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public void execute(Runnable run) { |
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run.run(); |
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} |
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public void run() { |
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MethodHandles.Lookup lookup = MethodHandles.lookup(); |
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MethodHandle handle = null; |
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try { |
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handle = lookup.findVirtual(Handle.class, "execute", |
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MethodType.methodType(void.class, Runnable.class)); |
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} catch(NoSuchMethodException | IllegalAccessException x) { |
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throw new RuntimeException(x); |
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} |
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try { |
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handle.invoke(this, impl); |
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} catch(Error | RuntimeException x) { |
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throw x; |
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} catch(Throwable t) { |
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throw new RuntimeException(t); |
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} |
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} |
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} |
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static String prepare(String produced, boolean eraseSensitiveInfo) { |
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if (eraseSensitiveInfo) { |
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// Erase sensitive information before comparing: |
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// comparing line numbers is too fragile, so we just erase them |
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// out before comparing. We also erase the hash-like names of |
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// synthetic frames introduced by lambdas & method handles |
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return produced.replaceAll(":[1-9][0-9]*\\)", ":00)") |
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.replaceAll("/[0-9]+\\.run", "/xxxxxxxx.run") |
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.replaceAll("/[0-9]+\\.invoke", "/xxxxxxxx.invoke") |
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40543
629f1f599595
8164569: Generate non-customized invoker forms at link time
redestad
parents:
40408
diff
changeset
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// LFs may or may not be pre-generated, making frames differ |
40212
6863c0579ecf
8163476: java/lang/StackWalker/VerifyStackTrace.java fails after JDK-8163369
redestad
parents:
38554
diff
changeset
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.replaceAll("DirectMethodHandle\\$Holder", "LambdaForm\\$DMH") |
40543
629f1f599595
8164569: Generate non-customized invoker forms at link time
redestad
parents:
40408
diff
changeset
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.replaceAll("Invokers\\$Holder", "LambdaForm\\$MH") |
629f1f599595
8164569: Generate non-customized invoker forms at link time
redestad
parents:
40408
diff
changeset
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.replaceAll("MH\\.invoke", "MH/xxxxxxxx.invoke") |
40408
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40212
diff
changeset
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// invoke frames may or may not have basic method type |
cf7e826d4d63
8164044: Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time
redestad
parents:
40212
diff
changeset
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// information encoded for diagnostic purposes |
40543
629f1f599595
8164569: Generate non-customized invoker forms at link time
redestad
parents:
40408
diff
changeset
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.replaceAll("xx\\.invoke([A-Za-z]*)_[A-Z_]+", "xx.invoke$1") |
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.replaceAll("\\$[0-9]+", "\\$??"); |
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} else { |
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return produced; |
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} |
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} |
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public static void main(String[] args) { |
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test(new TestCase1()); |
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test(new TestCase2()); |
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test(new TestCase3()); |
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test(new TestCase4()); |
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} |
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public static void invoke(Runnable run) { |
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run.run(); |
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} |
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static final class Recorder { |
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boolean found; // stop recording after main |
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public void recordSTE(long counter, StringBuilder s, StackFrame f) { |
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if (found) return; |
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found = VerifyStackTrace.class.equals(f.getDeclaringClass()) && |
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"main".equals(f.getMethodName()); |
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String line = String.format("%d: %s", counter, f.toStackTraceElement()); |
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s.append(line).append('\n'); |
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System.out.println(line); |
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} |
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} |
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static void test(TestCase test) { |
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System.out.println("\nTesting: " + test.description()); |
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final AtomicLong counter = new AtomicLong(); |
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final StringBuilder builder = new StringBuilder(); |
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final Recorder recorder = new Recorder(); |
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final Runnable run = () -> test.walker().forEach( |
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f -> recorder.recordSTE(counter.incrementAndGet(), builder, f)); |
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final Handle handle = new Handle(run); |
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// We're not using lambda on purpose here. We want the anonymous |
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// class on the stack. |
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PrivilegedAction<Object> pa = new PrivilegedAction<Object>() { |
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@Override |
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public Object run() { |
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try { |
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return VerifyStackTrace.class |
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.getMethod("invoke", Runnable.class) |
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.invoke(null, handle); |
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} catch (NoSuchMethodException |
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| IllegalAccessException |
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| InvocationTargetException ex) { |
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System.out.flush(); |
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throw new RuntimeException(ex); |
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} |
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} |
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}; |
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AccessController.doPrivileged(pa); |
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System.out.println("Main found: " + recorder.found); |
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if (!Objects.equals(prepare(test.expected(), true), prepare(builder.toString(), true))) { |
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System.out.flush(); |
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try { |
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// sleep to make it less likely that System.out & System.err will |
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// interleave. |
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Thread.sleep(1000); |
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} catch (InterruptedException ex) { |
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} |
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System.err.println("\nUnexpected stack trace: " |
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+ "\n<!-- expected -->\n" |
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+ prepare(test.expected(), true) |
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+ "\n<-- actual -->\n" |
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+ prepare(builder.toString(), false)); |
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throw new RuntimeException("Unexpected stack trace for: " + test.description()); |
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} |
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} |
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} |