1 /*
   2  * Copyright (c) 2008, 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 /*
  25  * @test
  26  * @bug 4075403
  27  * @summary Use javap to inquire about a specific inner class
  28  * @modules jdk.compiler
  29  */
  30 
  31 
  32 import java.io.*;
  33 
  34 public class T4075403 {
  35     public static void main(String[] args) throws Exception {
  36         new T4075403().run();
  37     }
  38 
  39     public void run() throws IOException {
  40 
  41         File javaFile = writeTestFile();
  42         File classFile = compileTestFile(javaFile);
  43         javap("Outer.Inner");
  44     }
  45 
  46     File writeTestFile() throws IOException {
  47         File f = new File("Outer.java");
  48         PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
  49         out.println("class Outer { ");
  50         out.println("    class Inner { }");
  51         out.println("}");
  52         out.close();
  53         return f;
  54     }
  55 
  56     File compileTestFile(File f) {
  57         int rc = com.sun.tools.javac.Main.compile(new String[] { "-g", f.getPath() });
  58         if (rc != 0)
  59             throw new Error("compilation failed. rc=" + rc);
  60         String path = f.getPath();
  61         return new File(path.substring(0, path.length() - 5) + ".class");
  62     }
  63 
  64     String javap(String className) {
  65         StringWriter sw = new StringWriter();
  66         PrintWriter out = new PrintWriter(sw);
  67         int rc = com.sun.tools.javap.Main.run(new String[] { "-classpath", ".", className }, out);
  68         if (rc != 0)
  69             throw new Error("javap failed. rc=" + rc);
  70         out.close();
  71         System.out.println(sw.toString());
  72         return sw.toString();
  73     }
  74 }