jdk8-mips64-public/langtools: test/tools/javac/7199823/InnerClassCannotBeVerified.java@f5e5ca7505e2

     1 /*

     2  * Copyright (c) 2012, 2013, 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 7199823

    27  * @summary javac generates inner class that can't be verified

    28  * @run main InnerClassCannotBeVerified

    29  */

    31 import java.util.Arrays;

    32 import javax.tools.JavaFileObject;

    33 import java.net.URI;

    34 import javax.tools.SimpleJavaFileObject;

    35 import javax.tools.ToolProvider;

    36 import javax.tools.JavaCompiler;

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

    38 import com.sun.tools.classfile.ClassFile;

    39 import com.sun.tools.classfile.ConstantPoolException;

    40 import java.io.File;

    41 import java.io.IOException;

    43 public class InnerClassCannotBeVerified {

    45     private static final String errorMessage =

    46             "Compile error while compiling the following source:\n";

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

    49         new InnerClassCannotBeVerified().run();

    50     }

    52     void run() throws Exception {

    53         JavaCompiler comp = ToolProvider.getSystemJavaCompiler();

    54         JavaSource source = new JavaSource();

    55         JavacTask ct = (JavacTask)comp.getTask(null, null, null,

    56                 null, null, Arrays.asList(source));

    57         try {

    58             if (!ct.call()) {

    59                 throw new AssertionError(errorMessage +

    60                         source.getCharContent(true));

    61             }

    62         } catch (Throwable ex) {

    63             throw new AssertionError(errorMessage +

    64                     source.getCharContent(true));

    65         }

    66         check();

    67     }

    69     private void check() throws IOException, ConstantPoolException {

    70         File file = new File("Test$1.class");

    71         ClassFile classFile = ClassFile.read(file);

    72         boolean inheritsFromObject =

    73                 classFile.getSuperclassName().equals("java/lang/Object");

    74         boolean implementsNoInterface = classFile.interfaces.length == 0;

    75         boolean noMethods = classFile.methods.length == 0;

    76         if (!(inheritsFromObject &&

    77               implementsNoInterface &&

    78               noMethods)) {

    79             throw new AssertionError("The inner classes reused as " +

    80                     "access constructor tag for this code must be empty");

    81         }

    82     }

    84     class JavaSource extends SimpleJavaFileObject {

    86         String internalSource =

    87                               "public class Test {\n" +

    88                               "    private static class Foo {}\n" +

    89                               "    public static void main(String[] args){ \n" +

    90                               "        new Foo();\n" +

    91                               "        if(false) {\n" +

    92                               "            new Runnable() {\n" +

    93                               "                @Override\n" +

    94                               "                public void run() {\n" +

    95                               "                    System.out.println();\n" +

    96                               "                }\n" +

    97                               "            }.run();\n" +

    98                               "        }\n" +

    99                               "   }\n" +

   100                               "}";

   101         public JavaSource() {

   102             super(URI.create("Test.java"), JavaFileObject.Kind.SOURCE);

   103         }

   105         @Override

   106         public CharSequence getCharContent(boolean ignoreEncodingErrors) {

   107             return internalSource;

   108         }

   109     }

   110 }

Mercurial > jdk8-mips64-public > langtools / file revision