1 /*

     2  * Copyright (c) 2019, 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  */

    23 

    24 /*

    25  * @test

    26  * @bug 8223942

    27  * @summary Missing methods in ClientCodeWrapper$WrappedJavaFileManager

    28  * @modules jdk.compiler/com.sun.tools.javac.api

    29  *          jdk.compiler/com.sun.tools.javac.util

    30  */

    31 

    32 import java.lang.reflect.*;

    33 import java.io.*;

    34 

    35 import javax.tools.*;

    36 import java.nio.charset.StandardCharsets;

    37 import com.sun.tools.javac.api.JavacTaskImpl;

    38 

    39 public class ClientCodeWrappersShouldOverrideAllMethodsTest {

    40     public static void main(String[] args) {

    41         ClientCodeWrappersShouldOverrideAllMethodsTest clientCodeWrappersShouldOverrideAllMethodsTest = new ClientCodeWrappersShouldOverrideAllMethodsTest();

    42         clientCodeWrappersShouldOverrideAllMethodsTest.testWrappersForJavaFileManager();

    43         clientCodeWrappersShouldOverrideAllMethodsTest.testWrappersForStandardJavaFileManager();

    44     }

    45 

    46     void testWrappersForJavaFileManager() {

    47         JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

    48         StandardJavaFileManager standardFileManager = compiler.getStandardFileManager(null, null, StandardCharsets.UTF_8);

    49         UserFileManager fileManager = new UserFileManager(standardFileManager);

    50         JavacTaskImpl task = (JavacTaskImpl)compiler.getTask(null, fileManager, null, null, null, null);

    51         JavaFileManager wrappedFM = task.getContext().get(JavaFileManager.class);

    52         checkAllMethodsOverridenInWrapperClass(wrappedFM.getClass(), JavaFileManager.class);

    53     }

    54 

    55     void testWrappersForStandardJavaFileManager() {

    56         JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

    57         StandardJavaFileManager standardFileManager = compiler.getStandardFileManager(null, null, StandardCharsets.UTF_8);

    58         UserStandardJavaFileManager fileManager = new UserStandardJavaFileManager(standardFileManager);

    59         JavacTaskImpl task = (JavacTaskImpl)compiler.getTask(null, fileManager, null, null, null, null);

    60         JavaFileManager wrappedFM = task.getContext().get(JavaFileManager.class);

    61         checkAllMethodsOverridenInWrapperClass(wrappedFM.getClass(), StandardJavaFileManager.class);

    62     }

    63 

    64     void checkAllMethodsOverridenInWrapperClass(Class<?> subClass, Class<?> superClass) {

    65         Method[] allMethods = subClass.getMethods();

    66         for (Method m : allMethods) {

    67             if (m.getDeclaringClass() == superClass) {

    68                 throw new AssertionError(String.format("method %s not overriden by javac provided wrapper class", m.getName()));

    69             }

    70         }

    71     }

    72 

    73     static class UserFileManager extends ForwardingJavaFileManager<JavaFileManager> {

    74         UserFileManager(JavaFileManager delegate) {

    75             super(delegate);

    76         }

    77     }

    78 

    79     static class UserStandardJavaFileManager extends ForwardingJavaFileManager<StandardJavaFileManager> implements StandardJavaFileManager {

    80         StandardJavaFileManager delegate;

    81 

    82         UserStandardJavaFileManager(StandardJavaFileManager delegate) {

    83             super(delegate);

    84             this.delegate = delegate;

    85         }

    86 

    87         public Iterable<? extends File> getLocation(Location location) { return delegate.getLocation(location);}

    88 

    89         public void setLocation(Location location, Iterable<? extends File> files) throws IOException {

    90             delegate.setLocation(location, files);

    91         }

    92 

    93         public Iterable<? extends JavaFileObject> getJavaFileObjects(String... names) {

    94             return delegate.getJavaFileObjects(names);

    95         }

    96 

    97         public Iterable<? extends JavaFileObject> getJavaFileObjectsFromStrings(Iterable<String> names) {

    98             return delegate.getJavaFileObjectsFromStrings(names);

    99         }

   100 

   101         public Iterable<? extends JavaFileObject> getJavaFileObjectsFromFiles(Iterable<? extends File> files) {

   102             return delegate.getJavaFileObjectsFromFiles(files);

   103         }

   104 

   105         public Iterable<? extends JavaFileObject> getJavaFileObjects(File... files) {

   106             return delegate.getJavaFileObjects(files);

   107         }

   108     }

   109 }