jdk8-mips64-public/langtools: test/tools/javap/8006334/JavapTaskCtorFailWithNPE.java@153d0309e698

     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  */

    24 /*

    25  * @test

    26  * @bug 8006334

    27  * @summary javap: JavapTask constructor breaks with null pointer exception if

    28  * parameter options is null

    29  */

    31 import java.io.File;

    32 import java.util.Arrays;

    33 import java.io.PrintWriter;

    34 import java.io.StringWriter;

    35 import java.util.List;

    36 import java.util.Locale;

    37 import javax.tools.Diagnostic;

    38 import javax.tools.DiagnosticCollector;

    39 import javax.tools.JavaFileManager;

    40 import javax.tools.JavaFileObject;

    41 import com.sun.tools.javap.JavapFileManager;

    42 import com.sun.tools.javap.JavapTask;

    44 public class JavapTaskCtorFailWithNPE {

    46     //we will also check the output just to confirm that we get the expected one

    47     private static final String expOutput =

    48         "Compiled from \"JavapTaskCtorFailWithNPE.java\"\n" +

    49         "public class JavapTaskCtorFailWithNPE {\n" +

    50         "  public JavapTaskCtorFailWithNPE();\n" +

    51         "  public static void main(java.lang.String[]);\n" +

    52         "}\n";

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

    55         new JavapTaskCtorFailWithNPE().run();

    56     }

    58     private void run() {

    59         File classToCheck = new File(System.getProperty("test.classes"),

    60             getClass().getSimpleName() + ".class");

    62         DiagnosticCollector<JavaFileObject> dc =

    63                 new DiagnosticCollector<JavaFileObject>();

    64         StringWriter sw = new StringWriter();

    65         PrintWriter pw = new PrintWriter(sw);

    66         JavaFileManager fm = JavapFileManager.create(dc, pw);

    67         JavapTask t = new JavapTask(pw, fm, dc, null,

    68                 Arrays.asList(classToCheck.getPath()));

    69         if (t.run() != 0)

    70             throw new Error("javap failed unexpectedly");

    72         List<Diagnostic<? extends JavaFileObject>> diags = dc.getDiagnostics();

    73         for (Diagnostic<? extends JavaFileObject> d: diags) {

    74             if (d.getKind() == Diagnostic.Kind.ERROR)

    75                 throw new AssertionError(d.getMessage(Locale.ENGLISH));

    76         }

    77         String lineSep = System.getProperty("line.separator");

    78         String out = sw.toString().replace(lineSep, "\n");

    79         if (!out.equals(expOutput)) {

    80             throw new AssertionError("The output is not equal to the one expected");

    81         }

    82     }

    84 }

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