jdk8-mips64-public/langtools: test/tools/javac/7142086/T7142086.java@0b6cc4ea670f

     1 /*

     2  * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    24 /*

    25  * @test

    26  * @bug 7142086

    27  * @summary performance problem in Check.checkOverrideClashes(...)

    28  * @run main/timeout=10 T7142086

    29  */

    31 import com.sun.source.util.JavacTask;

    32 import java.net.URI;

    33 import java.util.List;

    34 import java.util.ArrayList;

    35 import java.util.Locale;

    36 import javax.tools.Diagnostic;

    37 import javax.tools.JavaCompiler;

    38 import javax.tools.JavaFileObject;

    39 import javax.tools.SimpleJavaFileObject;

    40 import javax.tools.StandardJavaFileManager;

    41 import javax.tools.ToolProvider;

    43 public class T7142086 {

    45     final static int N_METHODS = 1000;

    47     static class TestClass extends SimpleJavaFileObject {

    49         String methTemplate = "abstract void m(A#N p);";

    50         String classTemplate = "abstract class Test { #M }";

    52         String source;

    54         public TestClass() {

    55             super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);

    56             StringBuilder buf = new StringBuilder();

    57             for (int i = 0 ; i < N_METHODS ; i++) {

    58                 buf.append(methTemplate.replace("#N", String.valueOf(i)));

    59                 buf.append("\n");

    60             }

    61             source = classTemplate.replace("#M", buf.toString());

    62         }

    64         @Override

    65         public CharSequence getCharContent(boolean ignoreEncodingErrors) {

    66             return source;

    67         }

    68     }

    70     static class AnSource extends SimpleJavaFileObject {

    72         String classTemplate = "abstract class A#N { }";

    74         String source;

    76         public AnSource(int n) {

    77             super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);

    78             source = classTemplate.replace("#N", String.valueOf(n));

    79         }

    81         @Override

    82         public CharSequence getCharContent(boolean ignoreEncodingErrors) {

    83             return source;

    84         }

    85     }

    87     public static void main(String... args) throws Exception {

    88         ArrayList<JavaFileObject> sources = new ArrayList<>();

    89         for (int i = 0 ; i < N_METHODS ; i++) {

    90             sources.add(new AnSource(i));

    91         }

    92         sources.add(new TestClass());

    93         new T7142086().run(sources);

    94     }

    96     void run(List<JavaFileObject> sources) throws Exception {

    97         DiagnosticChecker dc = new DiagnosticChecker();

    98         JavaCompiler comp = ToolProvider.getSystemJavaCompiler();

    99         StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null);

   100         JavacTask ct = (JavacTask)comp.getTask(null, fm, dc,

   101                 null, null, sources);

   102         ct.analyze();

   103     }

   105     static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> {

   107         boolean errorFound;

   109         public void report(Diagnostic<? extends JavaFileObject> diagnostic) {

   110             if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {

   111                 throw new AssertionError("unexpected diagnostic: " + diagnostic.getMessage(Locale.getDefault()));

   112             }

   113         }

   114     }

   115 }

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