author | alanb |
Thu, 01 Dec 2016 08:57:53 +0000 | |
changeset 42338 | a60f280f803c |
parent 37890 | f6cb5112c878 |
child 43733 | 25b25148d346 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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|
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/* |
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* @test LFMultiThreadCachingTest |
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* @bug 8046703 |
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* @key randomness |
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* @summary Test verifies that lambda forms are cached when run with multiple threads |
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* @author kshefov |
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* @library /lib/testlibrary/jsr292 /lib/testlibrary |
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* @modules java.base/java.lang.invoke:open |
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* java.base/java.lang.ref:open |
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* jdk.management |
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* @build TestMethods |
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* @build LambdaFormTestCase |
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* @build LFCachingTestCase |
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* @build LFMultiThreadCachingTest |
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* @run main/othervm LFMultiThreadCachingTest |
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*/ |
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|
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import java.lang.invoke.MethodHandle; |
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import java.util.Collections; |
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import java.util.EnumSet; |
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import java.util.HashMap; |
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import java.util.Map; |
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import java.util.concurrent.BrokenBarrierException; |
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import java.util.concurrent.ConcurrentLinkedQueue; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.CyclicBarrier; |
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import com.oracle.testlibrary.jsr292.CodeCacheOverflowProcessor; |
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|
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/** |
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* Multiple threaded lambda forms caching test class. |
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*/ |
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public final class LFMultiThreadCachingTest extends LFCachingTestCase { |
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private static final TestMethods.Kind[] KINDS; |
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static { |
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EnumSet<TestMethods.Kind> set = EnumSet.complementOf(EnumSet.of(TestMethods.Kind.EXCEPT)); |
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KINDS = set.toArray(new TestMethods.Kind[set.size()]); |
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if (KINDS.length < 2) { |
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throw new Error("TESTBUG: KINDS.length[" + KINDS.length + "] should be at least 2"); |
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} |
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} |
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private static final int CORES = Math.max(KINDS.length, Runtime.getRuntime().availableProcessors()); |
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|
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/** |
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* Constructor a for multiple threaded lambda forms caching test case. |
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* |
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* @param testMethod A method from {@code j.l.i.MethodHandles} class that |
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* returns a {@code j.l.i.MethodHandle} instance. |
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*/ |
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public LFMultiThreadCachingTest(TestMethods testMethod) { |
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super(testMethod); |
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} |
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|
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@Override |
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public void doTest() { |
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Map<String, Object> data = getTestMethod().getTestCaseData(); |
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ConcurrentLinkedQueue<MethodHandle> adapters = new ConcurrentLinkedQueue<>(); |
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CyclicBarrier begin = new CyclicBarrier(CORES); |
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CountDownLatch end = new CountDownLatch(CORES); |
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final Map<Thread, Throwable> threadUncaughtExceptions |
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= Collections.synchronizedMap(new HashMap<Thread, Throwable>(CORES)); |
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for (int i = 0; i < CORES; ++i) { |
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TestMethods.Kind kind = KINDS[i % KINDS.length]; |
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Thread t = new Thread(() -> { |
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try { |
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begin.await(); |
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adapters.add(getTestMethod().getTestCaseMH(data, kind)); |
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} catch (Throwable ex) { |
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threadUncaughtExceptions.put(Thread.currentThread(), ex); |
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} finally { |
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end.countDown(); |
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} |
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}); |
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t.start(); |
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} |
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try { |
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end.await(); |
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boolean vmeThrown = false; |
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boolean nonVmeThrown = false; |
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Throwable vme = null; |
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for (Map.Entry<Thread, |
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Throwable> entry : threadUncaughtExceptions.entrySet()) { |
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Thread t = entry.getKey(); |
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Throwable e = entry.getValue(); |
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System.err.printf("%nA thread with name \"%s\" of %d threads" |
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+ " has thrown exception:%n", t.getName(), CORES); |
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e.printStackTrace(); |
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if (CodeCacheOverflowProcessor.isThrowableCausedByVME(e)) { |
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vmeThrown = true; |
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vme = e; |
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} else { |
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nonVmeThrown = true; |
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} |
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if (nonVmeThrown) { |
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throw new Error("One ore more threads have" |
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+ " thrown unexpected exceptions. See log."); |
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} |
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if (vmeThrown) { |
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throw new Error("One ore more threads have" |
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+ " thrown VirtualMachineError caused by" |
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+ " code cache overflow. See log.", vme); |
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} |
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} |
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} catch (InterruptedException ex) { |
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throw new Error("Unexpected exception: ", ex); |
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} |
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if (adapters.size() < CORES) { |
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throw new Error("adapters size[" + adapters.size() + "] is less than " + CORES); |
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} |
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MethodHandle prev = adapters.poll(); |
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for (MethodHandle current : adapters) { |
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checkLFCaching(prev, current); |
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prev = current; |
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} |
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} |
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|
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/** |
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* Main routine for multiple threaded lambda forms caching test. |
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* |
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* @param args Accepts no arguments. |
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*/ |
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public static void main(String[] args) { |
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LambdaFormTestCase.runTests(LFMultiThreadCachingTest::new, EnumSet.allOf(TestMethods.class)); |
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} |
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} |