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test/tools/javac/6863465/TestCircularClassfile.java@ce6175cfe11e (annotated)

test/tools/javac/6863465/TestCircularClassfile.java

Mon, 24 Jan 2011 15:44:51 +0000

author

mcimadamore

date

Mon, 24 Jan 2011 15:44:51 +0000

changeset 829

ce6175cfe11e

parent 0

959103a6100f

permissions

-rw-r--r--

6968793: issues with diagnostics
Summary: several diagnostic improvements
Reviewed-by: jjg

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*/
aoqi@0	23
aoqi@0	24	/*
aoqi@0	25	* @test
aoqi@0	26	* @bug 6863465
aoqi@0	27	* @summary javac doesn't detect circular subclass dependencies via qualified names
aoqi@0	28	* @run main TestCircularClassfile
aoqi@0	29	*/
aoqi@0	30
aoqi@0	31	import java.io.*;
aoqi@0	32	import java.net.URI;
aoqi@0	33	import java.util.Arrays;
aoqi@0	34	import javax.tools.Diagnostic;
aoqi@0	35	import javax.tools.DiagnosticListener;
aoqi@0	36	import javax.tools.JavaCompiler;
aoqi@0	37	import javax.tools.JavaFileObject;
aoqi@0	38	import javax.tools.SimpleJavaFileObject;
aoqi@0	39	import javax.tools.ToolProvider;
aoqi@0	40
aoqi@0	41	import com.sun.source.util.JavacTask;
aoqi@0	42	import java.util.EnumSet;
aoqi@0	43
aoqi@0	44	public class TestCircularClassfile {
aoqi@0	45
aoqi@0	46	enum ClassName {
aoqi@0	47	A("A"),
aoqi@0	48	B("B"),
aoqi@0	49	C("C"),
aoqi@0	50	OBJECT("Object");
aoqi@0	51
aoqi@0	52	String name;
aoqi@0	53
aoqi@0	54	ClassName(String name) {
aoqi@0	55	this.name = name;
aoqi@0	56	}
aoqi@0	57	}
aoqi@0	58
aoqi@0	59	static class JavaSource extends SimpleJavaFileObject {
aoqi@0	60
aoqi@0	61	final static String sourceStub = "class #C extends #S {}";
aoqi@0	62
aoqi@0	63	String source;
aoqi@0	64
aoqi@0	65	public JavaSource(ClassName clazz, ClassName sup) {
aoqi@0	66	super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
aoqi@0	67	source = sourceStub.replace("#C", clazz.name).replace("#S", sup.name);
aoqi@0	68	}
aoqi@0	69
aoqi@0	70	@Override
aoqi@0	71	public CharSequence getCharContent(boolean ignoreEncodingErrors) {
aoqi@0	72	return source;
aoqi@0	73	}
aoqi@0	74	}
aoqi@0	75
aoqi@0	76	public static void main(String... args) throws Exception {
aoqi@0	77	int count = 0;
aoqi@0	78	for (ClassName clazz : EnumSet.of(ClassName.A, ClassName.B, ClassName.C)) {
aoqi@0	79	for (ClassName sup : EnumSet.of(ClassName.A, ClassName.B, ClassName.C)) {
aoqi@0	80	if (sup.ordinal() < clazz.ordinal()) continue;
aoqi@0	81	check("sub_"+count++, clazz, sup);
aoqi@0	82	}
aoqi@0	83	}
aoqi@0	84	}
aoqi@0	85
aoqi@0	86	static JavaSource[] initialSources = new JavaSource[] {
aoqi@0	87	new JavaSource(ClassName.A, ClassName.OBJECT),
aoqi@0	88	new JavaSource(ClassName.B, ClassName.A),
aoqi@0	89	new JavaSource(ClassName.C, ClassName.B)
aoqi@0	90	};
aoqi@0	91
aoqi@0	92	static String workDir = System.getProperty("user.dir");
aoqi@0	93
aoqi@0	94	static void check(String destPath, ClassName clazz, ClassName sup) throws Exception {
aoqi@0	95	File destDir = new File(workDir, destPath); destDir.mkdir();
aoqi@0	96	final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
aoqi@0	97	JavacTask ct = (JavacTask)tool.getTask(null, null, null,
aoqi@0	98	Arrays.asList("-d", destPath), null, Arrays.asList(initialSources));
aoqi@0	99	ct.generate();
aoqi@0	100	File fileToRemove = new File(destPath, clazz.name + ".class");
aoqi@0	101	fileToRemove.delete();
aoqi@0	102	JavaSource newSource = new JavaSource(clazz, sup);
aoqi@0	103	DiagnosticChecker checker = new DiagnosticChecker();
aoqi@0	104	ct = (JavacTask)tool.getTask(null, null, checker,
aoqi@0	105	Arrays.asList("-cp", destPath), null, Arrays.asList(newSource));
aoqi@0	106	ct.analyze();
aoqi@0	107	if (!checker.errorFound) {
aoqi@0	108	throw new AssertionError(newSource.source);
aoqi@0	109	}
aoqi@0	110	}
aoqi@0	111
aoqi@0	112	static class DiagnosticChecker implements DiagnosticListener<JavaFileObject> {
aoqi@0	113
aoqi@0	114	boolean errorFound = false;
aoqi@0	115
aoqi@0	116	public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
aoqi@0	117	if (diagnostic.getKind() == Diagnostic.Kind.ERROR &&
aoqi@0	118	diagnostic.getCode().equals("compiler.err.cyclic.inheritance")) {
aoqi@0	119	errorFound = true;
aoqi@0	120	}
aoqi@0	121	}
aoqi@0	122	}
aoqi@0	123	}