aoqi@0: /*
aoqi@0:  * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: /*
aoqi@0:  * @test
aoqi@0:  * @bug 7142086
aoqi@0:  * @summary performance problem in Check.checkOverrideClashes(...)
aoqi@0:  * @run main/timeout=10 T7142086
aoqi@0:  */
aoqi@0: 
aoqi@0: import com.sun.source.util.JavacTask;
aoqi@0: import java.net.URI;
aoqi@0: import java.util.List;
aoqi@0: import java.util.ArrayList;
aoqi@0: import java.util.Locale;
aoqi@0: import javax.tools.Diagnostic;
aoqi@0: import javax.tools.JavaCompiler;
aoqi@0: import javax.tools.JavaFileObject;
aoqi@0: import javax.tools.SimpleJavaFileObject;
aoqi@0: import javax.tools.StandardJavaFileManager;
aoqi@0: import javax.tools.ToolProvider;
aoqi@0: 
aoqi@0: public class T7142086 {
aoqi@0: 
aoqi@0:     final static int N_METHODS = 1000;
aoqi@0: 
aoqi@0:     static class TestClass extends SimpleJavaFileObject {
aoqi@0: 
aoqi@0:         String methTemplate = "abstract void m(A#N p);";
aoqi@0:         String classTemplate = "abstract class Test { #M }";
aoqi@0: 
aoqi@0:         String source;
aoqi@0: 
aoqi@0:         public TestClass() {
aoqi@0:             super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
aoqi@0:             StringBuilder buf = new StringBuilder();
aoqi@0:             for (int i = 0 ; i < N_METHODS ; i++) {
aoqi@0:                 buf.append(methTemplate.replace("#N", String.valueOf(i)));
aoqi@0:                 buf.append("\n");
aoqi@0:             }
aoqi@0:             source = classTemplate.replace("#M", buf.toString());
aoqi@0:         }
aoqi@0: 
aoqi@0:         @Override
aoqi@0:         public CharSequence getCharContent(boolean ignoreEncodingErrors) {
aoqi@0:             return source;
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     static class AnSource extends SimpleJavaFileObject {
aoqi@0: 
aoqi@0:         String classTemplate = "abstract class A#N { }";
aoqi@0: 
aoqi@0:         String source;
aoqi@0: 
aoqi@0:         public AnSource(int n) {
aoqi@0:             super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
aoqi@0:             source = classTemplate.replace("#N", String.valueOf(n));
aoqi@0:         }
aoqi@0: 
aoqi@0:         @Override
aoqi@0:         public CharSequence getCharContent(boolean ignoreEncodingErrors) {
aoqi@0:             return source;
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     public static void main(String... args) throws Exception {
aoqi@0:         ArrayList<JavaFileObject> sources = new ArrayList<>();
aoqi@0:         for (int i = 0 ; i < N_METHODS ; i++) {
aoqi@0:             sources.add(new AnSource(i));
aoqi@0:         }
aoqi@0:         sources.add(new TestClass());
aoqi@0:         new T7142086().run(sources);
aoqi@0:     }
aoqi@0: 
aoqi@0:     void run(List<JavaFileObject> sources) throws Exception {
aoqi@0:         DiagnosticChecker dc = new DiagnosticChecker();
aoqi@0:         JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
aoqi@0:         StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null);
aoqi@0:         JavacTask ct = (JavacTask)comp.getTask(null, fm, dc,
aoqi@0:                 null, null, sources);
aoqi@0:         ct.analyze();
aoqi@0:     }
aoqi@0: 
aoqi@0:     static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> {
aoqi@0: 
aoqi@0:         boolean errorFound;
aoqi@0: 
aoqi@0:         public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
aoqi@0:             if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
aoqi@0:                 throw new AssertionError("unexpected diagnostic: " + diagnostic.getMessage(Locale.getDefault()));
aoqi@0:             }
aoqi@0:         }
aoqi@0:     }
aoqi@0: }