1 /*
   2  * Copyright (c) 2006, 2010, 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 6439826 6411930 6380018 6392177
  27  * @summary Exception issuing Diagnostic while processing generated errant code
  28  */
  29 
  30 import java.io.*;
  31 import java.util.*;
  32 import javax.annotation.processing.*;
  33 import javax.lang.model.*;
  34 import javax.lang.model.element.*;
  35 import javax.tools.*;
  36 import com.sun.source.util.*;
  37 import com.sun.tools.javac.api.*;
  38 import static javax.lang.model.util.ElementFilter.*;
  39 
  40 
  41 @SupportedAnnotationTypes("*")
  42 public class T6439826 extends AbstractProcessor {
  43     public static void main(String... args) {
  44         String testSrc = System.getProperty("test.src", ".");
  45         String testClasses = System.getProperty("test.classes");
  46         JavacTool tool = JavacTool.create();
  47         MyDiagListener dl = new MyDiagListener();
  48         StandardJavaFileManager fm = tool.getStandardFileManager(dl, null, null);
  49         Iterable<? extends JavaFileObject> files =
  50             fm.getJavaFileObjectsFromFiles(Arrays.asList(new File(testSrc, T6439826.class.getName()+".java")));
  51         Iterable<String> opts = Arrays.asList("-proc:only",
  52                                               "-processor", "T6439826",
  53                                               "-processorpath", testClasses);
  54         StringWriter out = new StringWriter();
  55         JavacTask task = tool.getTask(out, fm, dl, opts, null, files);
  56         task.call();
  57         String s = out.toString();
  58         System.err.print(s);
  59         // Expect the following 2 diagnostics, and no output to log
  60         //   Foo.java:1: illegal character: \35
  61         //   Foo.java:1: reached end of file while parsing
  62         System.err.println(dl.count + " diagnostics; " + s.length() + " characters");
  63         if (dl.count != 2 || s.length() != 0)
  64             throw new AssertionError("unexpected output from compiler");
  65     }
  66 
  67     public boolean process(Set<? extends TypeElement> annotations,
  68                            RoundEnvironment roundEnv) {
  69         Set<? extends TypeElement> elems = typesIn(roundEnv.getRootElements());
  70         for (TypeElement e: elems) {
  71             if (e.getSimpleName().toString().equals(T6439826.class.getName()))
  72                 writeBadFile();
  73         }
  74         return false;
  75     }
  76 
  77     @Override
  78     public SourceVersion getSupportedSourceVersion() {
  79         return SourceVersion.latest();
  80     }
  81 
  82     private void writeBadFile() {
  83         Filer filer = processingEnv.getFiler();
  84         Messager messager = processingEnv.getMessager();
  85         try {
  86             Writer out = filer.createSourceFile("Foo").openWriter();
  87             out.write("class Foo #"); // write a file that generates a scanner error
  88             out.close();
  89         } catch (IOException e) {
  90             messager.printMessage(Diagnostic.Kind.ERROR, e.toString());
  91         }
  92     }
  93 
  94     static class MyDiagListener implements DiagnosticListener {
  95         public void report(Diagnostic d) {
  96             System.err.println(d);
  97             count++;
  98         }
  99 
 100         public int count;
 101     }
 102 }