1 /*
   2  * Copyright (c) 2014, 2017, 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 LFSingleThreadCachingTest
  26  * @bug 8046703
  27  * @key randomness
  28  * @summary Test verifies that lambda forms are cached when run with single thread
  29  * @author kshefov
  30  * @library /lib/testlibrary /java/lang/invoke/common
  31  * @modules java.base/java.lang.ref:open
  32  *          java.base/java.lang.invoke:open
  33  *          java.management
  34  * @build TestMethods
  35  * @build LambdaFormTestCase
  36  * @build LFCachingTestCase
  37  * @build LFSingleThreadCachingTest
  38  * @run main/othervm -XX:ReservedCodeCacheSize=128m LFSingleThreadCachingTest
  39  */
  40 
  41 import java.lang.invoke.MethodHandle;
  42 import java.util.EnumSet;
  43 import java.util.Map;
  44 
  45 /**
  46  * Single threaded lambda forms caching test class.
  47  */
  48 public final class LFSingleThreadCachingTest extends LFCachingTestCase {
  49 
  50     /**
  51      * Constructor for a single threaded lambda forms caching test case.
  52      *
  53      * @param testMethod A method from {@code j.l.i.MethodHandles} class that
  54      * returns a {@code j.l.i.MethodHandle} instance.
  55      */
  56     public LFSingleThreadCachingTest(TestMethods testMethod) {
  57         super(testMethod);
  58     }
  59 
  60     @Override
  61     public void doTest() {
  62         MethodHandle adapter1;
  63         MethodHandle adapter2;
  64         Map<String, Object> data = getTestMethod().getTestCaseData();
  65         try {
  66             adapter1 = getTestMethod().getTestCaseMH(data, TestMethods.Kind.ONE);
  67             adapter2 = getTestMethod().getTestCaseMH(data, TestMethods.Kind.TWO);
  68         } catch (NoSuchMethodException | IllegalAccessException ex) {
  69             throw new Error("Unexpected exception", ex);
  70         }
  71         checkLFCaching(adapter1, adapter2);
  72     }
  73 
  74     /**
  75      * Main routine for single threaded lambda forms caching test.
  76      *
  77      * @param args Accepts no arguments.
  78      */
  79     public static void main(String[] args) {
  80         LambdaFormTestCase.runTests(LFSingleThreadCachingTest::new,
  81                                     EnumSet.allOf(TestMethods.class));
  82     }
  83 }