72 lines
2.8 KiB
Java
72 lines
2.8 KiB
Java
/*
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* Copyright (c) 2014, 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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/*
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* @test
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* @bug 8038455
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* @summary Ensure that Symbols for members (methods and fields) are dropped across annotation
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* processing rounds. ClassSymbols need to be kept.
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* @library /tools/javac/lib
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* @modules java.compiler
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* jdk.compiler
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* @build JavacTestingAbstractProcessor MethodsDroppedBetweenRounds
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* @compile/process -processor MethodsDroppedBetweenRounds MethodsDroppedBetweenRounds.java
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*/
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import java.lang.ref.WeakReference;
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import java.util.*;
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import javax.annotation.processing.*;
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import javax.lang.model.element.*;
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import javax.lang.model.util.ElementFilter;
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public class MethodsDroppedBetweenRounds extends JavacTestingAbstractProcessor {
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private static TypeElement currentClassSymbol;
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private static WeakReference<ExecutableElement> keptMethod = null;
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public boolean process(Set<? extends TypeElement> annos,RoundEnvironment rEnv) {
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if (keptMethod != null) {
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//force GC:
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List<byte[]> hold = new ArrayList<>();
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try {
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while (true)
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hold.add(new byte[1024 * 1024 * 1024]);
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} catch (OutOfMemoryError err) { }
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hold.clear();
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if (keptMethod.get() != null) {
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throw new IllegalStateException("Holds method across rounds.");
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}
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}
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TypeElement currentClass = elements.getTypeElement("MethodsDroppedBetweenRounds");
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if (currentClassSymbol != null && currentClassSymbol != currentClass) {
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throw new IllegalStateException("Different ClassSymbols across rounds");
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}
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ExecutableElement method = ElementFilter.methodsIn(currentClass.getEnclosedElements()).get(0);
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keptMethod = new WeakReference<>(method);
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return true;
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}
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}
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