| /* |
| * Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 6863465 |
| * @summary javac doesn't detect circular subclass dependencies via qualified names |
| * @modules jdk.compiler |
| * @run main TestCircularClassfile |
| */ |
| |
| import java.io.*; |
| import java.net.URI; |
| import java.util.Arrays; |
| import javax.tools.Diagnostic; |
| import javax.tools.DiagnosticListener; |
| import javax.tools.JavaCompiler; |
| import javax.tools.JavaFileObject; |
| import javax.tools.SimpleJavaFileObject; |
| import javax.tools.ToolProvider; |
| |
| import com.sun.source.util.JavacTask; |
| import java.util.EnumSet; |
| |
| public class TestCircularClassfile { |
| |
| enum ClassName { |
| A("A"), |
| B("B"), |
| C("C"), |
| OBJECT("Object"); |
| |
| String name; |
| |
| ClassName(String name) { |
| this.name = name; |
| } |
| } |
| |
| static class JavaSource extends SimpleJavaFileObject { |
| |
| final static String sourceStub = "class #C extends #S {}"; |
| |
| String source; |
| |
| public JavaSource(ClassName clazz, ClassName sup) { |
| super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE); |
| source = sourceStub.replace("#C", clazz.name).replace("#S", sup.name); |
| } |
| |
| @Override |
| public CharSequence getCharContent(boolean ignoreEncodingErrors) { |
| return source; |
| } |
| } |
| |
| public static void main(String... args) throws Exception { |
| int count = 0; |
| for (ClassName clazz : EnumSet.of(ClassName.A, ClassName.B, ClassName.C)) { |
| for (ClassName sup : EnumSet.of(ClassName.A, ClassName.B, ClassName.C)) { |
| if (sup.ordinal() < clazz.ordinal()) continue; |
| check("sub_"+count++, clazz, sup); |
| } |
| } |
| } |
| |
| static JavaSource[] initialSources = new JavaSource[] { |
| new JavaSource(ClassName.A, ClassName.OBJECT), |
| new JavaSource(ClassName.B, ClassName.A), |
| new JavaSource(ClassName.C, ClassName.B) |
| }; |
| |
| static String workDir = System.getProperty("user.dir"); |
| |
| static void check(String destPath, ClassName clazz, ClassName sup) throws Exception { |
| File destDir = new File(workDir, destPath); destDir.mkdir(); |
| final JavaCompiler tool = ToolProvider.getSystemJavaCompiler(); |
| JavacTask ct = (JavacTask)tool.getTask(null, null, null, |
| Arrays.asList("-d", destPath), null, Arrays.asList(initialSources)); |
| ct.generate(); |
| File fileToRemove = new File(destPath, clazz.name + ".class"); |
| fileToRemove.delete(); |
| JavaSource newSource = new JavaSource(clazz, sup); |
| DiagnosticChecker checker = new DiagnosticChecker(); |
| ct = (JavacTask)tool.getTask(null, null, checker, |
| Arrays.asList("-cp", destPath), null, Arrays.asList(newSource)); |
| ct.analyze(); |
| if (!checker.errorFound) { |
| throw new AssertionError(newSource.source); |
| } |
| } |
| |
| static class DiagnosticChecker implements DiagnosticListener<JavaFileObject> { |
| |
| boolean errorFound = false; |
| |
| public void report(Diagnostic<? extends JavaFileObject> diagnostic) { |
| if (diagnostic.getKind() == Diagnostic.Kind.ERROR && |
| diagnostic.getCode().equals("compiler.err.cyclic.inheritance")) { |
| errorFound = true; |
| } |
| } |
| } |
| } |