1 /*
   2  * Copyright (c) 2014, 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 8033180
  27  * @summary Bad newline characters
  28  * @modules jdk.compiler
  29  */
  30 
  31 import java.io.*;
  32 import java.util.*;
  33 
  34 public class T8033180 {
  35 
  36     public static void main(String... args) throws Exception {
  37         new T8033180().run();
  38     }
  39 
  40     void run() throws Exception {
  41         // fast-track this case, because test cannot fail in this case
  42         if (lineSep.equals(nl))
  43             return;
  44 
  45         test("-help");
  46         test("-version");
  47 
  48         if (errors > 0)
  49             throw new Exception(errors + " errors occurred");
  50     }
  51 
  52     static final String lineSep = System.getProperty("line.separator");
  53     static final String nl = "\n";
  54 
  55     void test(String... opts) throws Exception {
  56         System.err.println("test " + Arrays.asList(opts));
  57         List<String> args = new ArrayList<String>();
  58         args.addAll(Arrays.asList(opts));
  59         StringWriter sw = new StringWriter();
  60         PrintWriter pw = new PrintWriter(sw);
  61         int rc = com.sun.tools.javap.Main.run(args.toArray(new String[args.size()]), pw);
  62         pw.close();
  63         String out = sw.toString();
  64         if (rc != 0)
  65             throw new Exception("javap failed unexpectedly: rc=" + rc);
  66 
  67         // remove all valid platform newline sequences
  68         String out2 = out.replace(lineSep, "");
  69 
  70         // count the remaining simple newline characters
  71         int count = 0;
  72         int i = out2.indexOf(nl, 0);
  73         while (i != -1) {
  74             count++;
  75             i = out2.indexOf(nl, i + nl.length());
  76         }
  77 
  78         if (count > 0)
  79             error(count + " newline characters found");
  80     }
  81 
  82     void error(String msg) {
  83         System.err.println("Error: " + msg);
  84         errors++;
  85     }
  86 
  87     int errors = 0;
  88 }
  89