1 /*

     2  * Copyright (c) 2015, 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 8230105

    27  * @summary Do not run Analyzers when Attr crashes with an exception.

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

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

    30  *          jdk.compiler/com.sun.tools.javac.tree

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

    32  */

    33 

    34 import java.io.IOException;

    35 import java.net.URI;

    36 import java.util.Arrays;

    37 import java.util.List;

    38 import javax.tools.JavaFileObject;

    39 import javax.tools.SimpleJavaFileObject;

    40 

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

    42 import com.sun.tools.javac.api.JavacTool;

    43 import com.sun.tools.javac.comp.Attr;

    44 import com.sun.tools.javac.tree.JCTree.JCVariableDecl;

    45 import com.sun.tools.javac.util.Context;

    46 import com.sun.tools.javac.util.Context.Factory;

    47 

    48 public class DoNoRunAnalyzersWhenException {

    49 

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

    51         new DoNoRunAnalyzersWhenException().run();

    52     }

    53 

    54     void run() throws IOException {

    55         JavacTool tool = JavacTool.create();

    56         JavaSource source = new JavaSource("class Test {" +

    57                                            "    { String STOP = \"\"; }" +

    58                                            "}");

    59         Context context = new Context();

    60         CrashingAttr.preRegister(context);

    61         List<JavaSource> inputs = Arrays.asList(source);

    62         JavacTaskImpl task =

    63                 (JavacTaskImpl) tool.getTask(null, null, null, List.of("-XDfind=all"), null, inputs, context);

    64         try {

    65             task.analyze(null);

    66             throw new AssertionError("Expected exception not seen.");

    67         } catch (StopException ex) {

    68             //ok

    69         }

    70     }

    71 

    72     static class CrashingAttr extends Attr {

    73 

    74         static void preRegister(Context context) {

    75             context.put(attrKey, (Factory<Attr>) c -> new CrashingAttr(c));

    76         }

    77 

    78         CrashingAttr(Context context) {

    79             super(context);

    80         }

    81 

    82         @Override public void visitVarDef(JCVariableDecl tree) {

    83             if (tree.name.contentEquals("STOP"))

    84                 throw new StopException();

    85             super.visitVarDef(tree);

    86         }

    87     }

    88 

    89     static class StopException extends NullPointerException {}

    90 

    91     class JavaSource extends SimpleJavaFileObject {

    92 

    93         String source;

    94 

    95         JavaSource(String source) {

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

    97             this.source = source;

    98         }

    99 

   100         @Override

   101         public CharSequence getCharContent(boolean ignoreEncodingErrors) {

   102             return source;

   103         }

   104 

   105     }

   106 

   107 }