103 lines
4.0 KiB
Java
103 lines
4.0 KiB
Java
/*
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* Copyright (c) 2018, 2019, 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 8209055
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* @summary Verify that speculative symbols are not unnecessarily retained in
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* the DeferredCompletionFailureHandler
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* @library /tools/javac/lib /tools/lib
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* @modules jdk.compiler/com.sun.tools.javac.api
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* jdk.compiler/com.sun.tools.javac.code:+open
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* jdk.compiler/com.sun.tools.javac.main
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* @run main SymbolsDontCumulate
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*/
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import java.lang.reflect.Field;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Map;
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import java.util.Objects;
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import javax.tools.JavaCompiler;
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import javax.tools.StandardJavaFileManager;
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import javax.tools.ToolProvider;
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import com.sun.tools.javac.api.JavacTaskImpl;
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import com.sun.tools.javac.code.DeferredCompletionFailureHandler;
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import toolbox.ToolBox;
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public class SymbolsDontCumulate {
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ToolBox tb = new ToolBox();
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void testSymbolsCumulate() throws Exception {
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JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
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List<String> errors = new ArrayList<>();
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try (StandardJavaFileManager fm = compiler.getStandardFileManager(null, null, null)) {
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com.sun.source.util.JavacTask task = (com.sun.source.util.JavacTask)
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compiler.getTask(null,
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fm,
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d -> errors.add(d.getCode()),
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Arrays.asList("-proc:none"),
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Arrays.asList("java.lang.Object"),
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null);
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assertNotNull(task.getElements().getTypeElement("java.lang.Object"));
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assertNull(task.getElements().getTypeElement("undef.Undef"));
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assertNotNull(task.getElements().getTypeElement("java.lang.String"));
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assertNull(task.getElements().getTypeElement("undef2.Undef2"));
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DeferredCompletionFailureHandler h = DeferredCompletionFailureHandler.instance(((JavacTaskImpl) task).getContext());
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Field class2Flip = h.userCodeHandler.getClass().getDeclaredField("class2Flip");
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class2Flip.setAccessible(true);
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int size = ((Map<?,?>) class2Flip.get(h.userCodeHandler)).size();
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assertEquals(0, size);
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}
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}
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private static void assertEquals(Object expected, Object actual) {
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if (!Objects.equals(expected, actual)) {
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throw new AssertionError("Unexpected value, expected: " + expected + ", actual: " + actual);
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}
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}
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private static void assertNotNull(Object obj) {
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if (obj == null) {
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throw new AssertionError("Unexpected value, object: " + obj);
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}
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}
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private static void assertNull(Object obj) {
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if (obj != null) {
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throw new AssertionError("Unexpected value, object: " + obj);
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}
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}
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public static void main(String... args) throws Exception {
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SymbolsDontCumulate t = new SymbolsDontCumulate();
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t.testSymbolsCumulate();
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}
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}
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