1 /*

     2  * Copyright (c) 2010, 2015, 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 import java.io.BufferedWriter;

    25 import java.io.File;

    26 import java.io.FileWriter;

    27 import java.io.IOException;

    28 import java.io.StringWriter;

    29 import java.util.Arrays;

    30 import java.util.Iterator;

    31 import java.util.List;

    32 

    33 import javax.lang.model.element.Element;

    34 import javax.tools.DiagnosticCollector;

    35 import javax.tools.JavaCompiler;

    36 import javax.tools.JavaFileObject;

    37 import javax.tools.StandardJavaFileManager;

    38 import javax.tools.ToolProvider;

    39 

    40 import com.sun.source.tree.CompilationUnitTree;

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

    42 

    43 /**

    44  * @test

    45  * @bug 6956638

    46  * @summary JavacTask.generate does not generate all required files

    47  * @modules jdk.compiler

    48  */

    49 public class T6956638 {

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

    51         new T6956638().run();

    52     }

    53 

    54     void run() throws Exception {

    55         File srcDir = new File("src");

    56 

    57         File[] files = {

    58             writeFile(new File(srcDir, "T1.java"),

    59                 "public class T1 extends T2 {}\n"),

    60             writeFile(new File(srcDir, "T2.java"),

    61                 "public class T2 extends T3 {}\n"),

    62             writeFile(new File(srcDir, "T3.java"),

    63                 "public class T3 { public static final int C = 1; }\n"),

    64             writeFile(new File(srcDir, "Test.java"),

    65                 "public class Test { public static final int D = T1.C; }\n")

    66         };

    67 

    68         for (File f1: files) {

    69             for (File f2: files) {

    70                 if (f2 == f1) continue;

    71                 for (File f3: files) {

    72                     if (f3 == f2 || f3 == f1) continue;

    73                     for (File f4: files) {

    74                         if (f4 == f3 || f4 == f2 || f4 == f1) continue;

    75                         try {

    76                             test(f1, f2, f3, f4);

    77                         } catch (Exception e) {

    78                             error(e);

    79                         }

    80                     }

    81                 }

    82             }

    83         }

    84 

    85         if (errors > 0)

    86             throw new Exception(errors + " tests failed");

    87     }

    88 

    89     void test(File... sourceFiles) throws Exception {

    90         System.err.println("Test " + (++count) + ": " + Arrays.asList(sourceFiles));

    91 

    92         File classesDir = new File("classes" + count);

    93         classesDir.mkdirs();

    94 

    95         StringWriter compilerOutputStream = new StringWriter();

    96 

    97         List<String> compileOptions = Arrays.asList("-d", classesDir.getPath());

    98         JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

    99         DiagnosticCollector<JavaFileObject> diagnosticCollector = new DiagnosticCollector<JavaFileObject>();

   100         try (StandardJavaFileManager fileManager = compiler.getStandardFileManager(diagnosticCollector, null, null)) {

   101             Iterable<? extends JavaFileObject> sourceFileObjects = fileManager.getJavaFileObjects(sourceFiles);

   102             System.err.println("1- javac given java source JavaFileObjects " + sourceFileObjects);

   103             JavaCompiler.CompilationTask task = compiler.getTask(compilerOutputStream, fileManager, null, compileOptions, null, sourceFileObjects);

   104             JavacTask javacTask = (JavacTask) task;

   105 

   106             Iterable<? extends CompilationUnitTree> parsedTrees = javacTask.parse();

   107             Iterable<? extends Element> analyzedTrees = javacTask.analyze();

   108             Iterable<? extends JavaFileObject> generatedFiles = javacTask.generate();

   109 

   110             System.err.println("2- parsed:" + size(parsedTrees) + " analysed:" + size(analyzedTrees) + " generated:" + size(generatedFiles));

   111 

   112             System.err.print("3-");

   113             for (JavaFileObject f : generatedFiles)

   114                 System.err.print(" " + f);

   115             System.err.println("");

   116 

   117             System.err.print("5-");

   118             for (File f : classesDir.listFiles())

   119                 System.err.print(" " + f);

   120             System.err.println("");

   121 

   122             System.err.println("----");

   123             System.err.println(compilerOutputStream.toString());

   124 

   125             if (size(generatedFiles) != size(parsedTrees)) {

   126                 throw new Exception("wrong number of files generated: " + size(generatedFiles)

   127                         + " expected: " + size(parsedTrees));

   128             }

   129         }

   130     }

   131 

   132     private void error(Throwable t) {

   133         t.printStackTrace();

   134         errors++;

   135     }

   136 

   137     int count;

   138     int errors;

   139 

   140     private static <E> int size(Iterable<E> x) {

   141         int n = 0;

   142         for (Iterator<E> iter = x.iterator(); iter.hasNext(); ++n)

   143             iter.next();

   144         return n;

   145     }

   146 

   147     private static File writeFile(File f, String str) throws IOException {

   148         f.getParentFile().mkdirs();

   149         BufferedWriter fout = new BufferedWriter(new FileWriter(f));

   150         try {

   151             fout.write(str);

   152             fout.flush();

   153         } finally {

   154             fout.close();

   155         }

   156         return f;

   157     }

   158 }