1 /*

     2  * Copyright (c) 2014, 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 8050106

    27  * @summary JavaCompiler relies on inappropriate result from comparison

    28  */

    29 

    30 import java.io.*;

    31 import java.util.*;

    32 import com.sun.tools.javac.code.Source;

    33 import com.sun.tools.javac.jvm.Target;

    34 

    35 public class SourceTargetTest {

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

    37         SourceTargetTest t = new SourceTargetTest();

    38         t.run();

    39     }

    40 

    41     public void run() throws Exception {

    42         try (FileWriter out = new FileWriter("C.java")) {

    43             out.write("class C { }");

    44         }

    45 

    46         for (Source s: Source.values()) {

    47             test(s, null, "source", getKind(s, Source.MIN));

    48         }

    49 

    50         for (Target t: Target.values()) {

    51             test(Source.values()[0], t, "target", getKind(t, Target.MIN));

    52         }

    53 

    54         if (errors > 0)

    55             throw new Exception(errors + " errors occurred");

    56     }

    57 

    58     void test(Source s, Target t, String select, Kind kind) {

    59         System.err.println("Test: source:" + s + ", target:" + t + " " + select + " " + kind);

    60         List<String> args = new ArrayList<>();

    61         args.add("-XDrawDiagnostics");

    62         args.add("-source");

    63         args.add(s.name);

    64         if (t != null) {

    65             args.add("-target");

    66             args.add(t.name);

    67         }

    68         args.add("C.java");

    69 

    70         StringWriter sw = new StringWriter();

    71         PrintWriter pw = new PrintWriter(sw);

    72         int rc = com.sun.tools.javac.Main.compile(args.toArray(new String[args.size()]), pw);

    73         pw.close();

    74         String out = sw.toString();

    75         System.err.print(out);

    76 

    77         switch (kind) {

    78             case INVALID:

    79                 check(out, "removed." + select, true);

    80                 check(out, "obsolete." + select, false);

    81                 break;

    82 

    83             case OBSOLETE:

    84                 check(out, "removed." + select, false);

    85                 check(out, "obsolete." + select, true);

    86                 break;

    87 

    88             case VALID:

    89                 check(out, "removed." + select, false);

    90                 check(out, "obsolete." + select, false);

    91                 break;

    92         }

    93 

    94         System.err.println();

    95     }

    96 

    97     enum Kind { INVALID, OBSOLETE, VALID };

    98 

    99     <T extends Comparable<T>> Kind getKind(T t1, T t2) {

   100         if (t1.compareTo(t2) < 0)

   101             return Kind.INVALID;

   102         else if (t1 == t2)

   103             return Kind.OBSOLETE;

   104         else

   105             return Kind.VALID;

   106     }

   107 

   108     void check(String out, String text, boolean expect) {

   109         if (out.contains(text) == expect) {

   110             if (expect)

   111                 System.err.println("expected string found: " + text);

   112             else

   113                 System.err.println("string not found, as expected: " + text);

   114         } else {

   115             if (expect)

   116                 error("expected string not found: " + text);

   117             else

   118                 error("unexpected string found: " + text);

   119         }

   120     }

   121 

   122     void error(String msg) {

   123         System.err.println("error: " + msg);

   124         errors++;

   125     }

   126 

   127     int errors;

   128 }