81 lines
2.8 KiB
Java
81 lines
2.8 KiB
Java
/*
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* Copyright (c) 2013, 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 8011181
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* @summary javac, empty UTF8 entry generated for inner class
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* @modules java.base/jdk.internal.classfile
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* java.base/jdk.internal.classfile.attribute
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* java.base/jdk.internal.classfile.constantpool
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* java.base/jdk.internal.classfile.instruction
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* java.base/jdk.internal.classfile.components
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* jdk.compiler/com.sun.tools.javac.util
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*/
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import java.io.BufferedInputStream;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import com.sun.tools.javac.util.Assert;
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import jdk.internal.classfile.*;
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import jdk.internal.classfile.constantpool.*;
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public class EmptyUTF8ForInnerClassNameTest {
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public static void main(String[] args) throws Exception {
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new EmptyUTF8ForInnerClassNameTest().run();
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}
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void run() throws Exception {
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checkClassFile(Paths.get(System.getProperty("test.classes"),
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this.getClass().getName() + "$1.class"));
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checkClassFile(Paths.get(System.getProperty("test.classes"),
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this.getClass().getName() + "$EnumPlusSwitch.class"));
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}
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void checkClassFile(final Path path) throws Exception {
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ClassModel classFile = Classfile.of().parse(
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new BufferedInputStream(Files.newInputStream(path)).readAllBytes());
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for (PoolEntry pe : classFile.constantPool()) {
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if (pe instanceof Utf8Entry utf8Info) {
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Assert.check(utf8Info.stringValue().length() > 0,
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"UTF8 with length 0 found at class " + classFile.thisClass().name());
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}
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}
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}
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static class EnumPlusSwitch {
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public int m (Thread.State e) {
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switch (e) {
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case NEW:
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return 0;
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}
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return -1;
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}
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}
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}
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