125 lines
4.2 KiB
Java
125 lines
4.2 KiB
Java
/*
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* Copyright (c) 2010, 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 6863465
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* @summary javac doesn't detect circular subclass dependencies via qualified names
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* @modules jdk.compiler
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* @run main TestCircularClassfile
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*/
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import java.io.*;
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import java.net.URI;
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import java.util.Arrays;
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import javax.tools.Diagnostic;
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import javax.tools.DiagnosticListener;
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import javax.tools.JavaCompiler;
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import javax.tools.JavaFileObject;
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import javax.tools.SimpleJavaFileObject;
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import javax.tools.ToolProvider;
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import com.sun.source.util.JavacTask;
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import java.util.EnumSet;
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public class TestCircularClassfile {
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enum ClassName {
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A("A"),
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B("B"),
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C("C"),
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OBJECT("Object");
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String name;
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ClassName(String name) {
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this.name = name;
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}
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}
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static class JavaSource extends SimpleJavaFileObject {
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final static String sourceStub = "class #C extends #S {}";
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String source;
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public JavaSource(ClassName clazz, ClassName sup) {
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super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
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source = sourceStub.replace("#C", clazz.name).replace("#S", sup.name);
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}
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@Override
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public CharSequence getCharContent(boolean ignoreEncodingErrors) {
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return source;
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}
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}
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public static void main(String... args) throws Exception {
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int count = 0;
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for (ClassName clazz : EnumSet.of(ClassName.A, ClassName.B, ClassName.C)) {
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for (ClassName sup : EnumSet.of(ClassName.A, ClassName.B, ClassName.C)) {
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if (sup.ordinal() < clazz.ordinal()) continue;
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check("sub_"+count++, clazz, sup);
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}
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}
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}
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static JavaSource[] initialSources = new JavaSource[] {
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new JavaSource(ClassName.A, ClassName.OBJECT),
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new JavaSource(ClassName.B, ClassName.A),
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new JavaSource(ClassName.C, ClassName.B)
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};
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static String workDir = System.getProperty("user.dir");
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static void check(String destPath, ClassName clazz, ClassName sup) throws Exception {
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File destDir = new File(workDir, destPath); destDir.mkdir();
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final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
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JavacTask ct = (JavacTask)tool.getTask(null, null, null,
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Arrays.asList("-d", destPath), null, Arrays.asList(initialSources));
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ct.generate();
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File fileToRemove = new File(destPath, clazz.name + ".class");
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fileToRemove.delete();
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JavaSource newSource = new JavaSource(clazz, sup);
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DiagnosticChecker checker = new DiagnosticChecker();
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ct = (JavacTask)tool.getTask(null, null, checker,
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Arrays.asList("-cp", destPath), null, Arrays.asList(newSource));
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ct.analyze();
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if (!checker.errorFound) {
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throw new AssertionError(newSource.source);
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}
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}
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static class DiagnosticChecker implements DiagnosticListener<JavaFileObject> {
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boolean errorFound = false;
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public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
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if (diagnostic.getKind() == Diagnostic.Kind.ERROR &&
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diagnostic.getCode().equals("compiler.err.cyclic.inheritance")) {
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errorFound = true;
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}
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}
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}
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}
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