1 /*

     2  * Copyright (c) 2016, 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.

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    23 

    24 

    25 /*

    26  * @test ClassResolutionTest

    27  * @bug 8144874

    28  * @library /testlibrary

    29  * @build jdk.test.lib.OutputAnalyzer jdk.test.lib.ProcessTools

    30  * @run driver ClassResolutionTest

    31  */

    32 

    33 import jdk.test.lib.OutputAnalyzer;

    34 import jdk.test.lib.ProcessTools;

    35 import java.lang.ref.WeakReference;

    36 import java.lang.reflect.Method;

    37 

    38 public class ClassResolutionTest {

    39 

    40     public static class ClassResolutionTestMain {

    41 

    42         public static class Thing1 {

    43             public static int getThingNumber() {

    44                 return 1;

    45             }

    46         };

    47         public static class Thing1Handler {

    48             public static int getThingNumber() {

    49                 return Thing1.getThingNumber();

    50             }

    51         };

    52 

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

    54             Thing1Handler.getThingNumber();

    55         }

    56     }

    57 

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

    59 

    60         // (1) classresolve should turn on.

    61         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

    62             "-Xlog:classresolve=info", ClassResolutionTestMain.class.getName());

    63         OutputAnalyzer o = new OutputAnalyzer(pb.start());

    64         o.shouldContain("[classresolve] ClassResolutionTest$ClassResolutionTestMain$Thing1Handler ClassResolutionTest$ClassResolutionTestMain$Thing1");

    65 

    66         // (2) classresolve should turn off.

    67         pb = ProcessTools.createJavaProcessBuilder(

    68             "-Xlog", "-Xlog:classresolve=off",  ClassResolutionTestMain.class.getName());

    69         o = new OutputAnalyzer(pb.start());

    70         o.shouldNotContain("[classresolve]");

    71 

    72         // (3) TraceClassResolution should turn on.

    73         pb = ProcessTools.createJavaProcessBuilder(

    74             "-XX:+TraceClassResolution", ClassResolutionTestMain.class.getName());

    75         o = new OutputAnalyzer(pb.start());

    76         o.shouldContain("[classresolve] ClassResolutionTest$ClassResolutionTestMain$Thing1Handler ClassResolutionTest$ClassResolutionTestMain$Thing1");

    77 

    78         // (4) TraceClassResolution should turn off.

    79         pb = ProcessTools.createJavaProcessBuilder(

    80             "-Xlog", "-XX:-TraceClassResolution",  ClassResolutionTestMain.class.getName());

    81         o = new OutputAnalyzer(pb.start());

    82         o.shouldNotContain("[classresolve]");

    83 

    84 

    85     };

    86 }