1 /*

     2  * Copyright (c) 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  */

    23 

    24 /*

    25  * @test

    26  * @bug 7116676

    27  * @summary RichDiagnosticFormatter throws NPE when formatMessage is called directly

    28  */

    29 

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

    31 import com.sun.tools.javac.api.ClientCodeWrapper.Trusted;

    32 import com.sun.tools.javac.api.DiagnosticFormatter;

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

    34 import com.sun.tools.javac.util.Assert;

    35 import com.sun.tools.javac.util.JCDiagnostic;

    36 import com.sun.tools.javac.util.Log;

    37 import java.io.IOException;

    38 import java.net.URI;

    39 import java.util.ArrayList;

    40 import java.util.Arrays;

    41 import java.util.List;

    42 import java.util.Locale;

    43 import javax.tools.Diagnostic;

    44 import javax.tools.DiagnosticListener;

    45 import javax.tools.JavaCompiler;

    46 import javax.tools.JavaFileObject;

    47 import javax.tools.SimpleJavaFileObject;

    48 import javax.tools.ToolProvider;

    49 

    50 public class T7116676 {

    51 

    52     public static void main(String[] args) throws Exception {

    53         T7116676 test = new T7116676();

    54         test.testThroughFormatterFormat();

    55     }

    56 

    57     static class JavaSource extends SimpleJavaFileObject {

    58         private String text = "package test;\n" +

    59                               "public class Test {\n" +

    60                               "   private void t(java.util.List<? extends String> l) {\n" +

    61                               "      t(java.util.Collections.singleton(l));\n" +

    62                               "}  }";

    63 

    64         public JavaSource() {

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

    66         }

    67         @Override

    68         public CharSequence getCharContent(boolean ignoreEncodingErrors) {

    69             return text;

    70         }

    71     }

    72 

    73     void assertEquals(String req, String found) {

    74         if (!found.equals(req)) {

    75             throw new AssertionError(String.format("Error. Found: \n\n%s ; Expected: \n\n%s", found, req));

    76         }

    77     }

    78 

    79     public void testThroughFormatterFormat() throws IOException {

    80         final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();

    81         DiagnosticChecker dc = new DiagnosticChecker("compiler.err.prob.found.req");

    82         JavacTask ct = (JavacTask)tool.getTask(null, null, dc, null, null, Arrays.asList(new JavaSource()));

    83         ct.analyze();

    84         DiagnosticFormatter<JCDiagnostic> formatter =

    85                 Log.instance(((JavacTaskImpl) ct).getContext()).getDiagnosticFormatter();

    86         String msg = formatter.formatMessage(dc.diag, Locale.getDefault());

    87         //no redundant package qualifiers

    88         Assert.check(msg.indexOf("java.") == -1, msg);

    89     }

    90 

    91     @Trusted

    92     private static final class DiagnosticChecker implements DiagnosticListener<JavaFileObject> {

    93 

    94         String expectedKey;

    95         JCDiagnostic diag;

    96 

    97         DiagnosticChecker(String expectedKey) {

    98             this.expectedKey = expectedKey;

    99         }

   100 

   101         @Override

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

   103             JCDiagnostic diag = (JCDiagnostic)diagnostic;

   104             if (diagnostic.getCode().equals(expectedKey)) {

   105                 this.diag = diag;

   106             }

   107         }

   108     }

   109 }