| /* |
| * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test Test8004741.java |
| * @bug 8004741 |
| * @summary Missing compiled exception handle table entry for multidimensional array allocation |
| * @run main/othervm -Xmx64m -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation -XX:+StressCompiledExceptionHandlers -XX:+SafepointALot -XX:GuaranteedSafepointInterval=100 Test8004741 |
| * @run main/othervm -Xmx64m -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation -XX:+StressCompiledExceptionHandlers Test8004741 |
| */ |
| |
| import java.util.*; |
| |
| public class Test8004741 extends Thread { |
| |
| static int passed = 0; |
| |
| /** |
| * Loop forever allocating 2-d arrays. |
| * Catches and rethrows all exceptions; in the case of ThreadDeath, increments passed. |
| * Note that passed is incremented here because this is the exception handler with |
| * the smallest scope; we only want to declare success in the case where it is highly |
| * likely that the test condition |
| * (exception in 2-d array alloc interrupted by ThreadDeath) |
| * actually occurs. |
| */ |
| static int[][] test(int a, int b) throws Exception { |
| int[][] ar; |
| try { |
| ar = new int[a][b]; |
| } catch (ThreadDeath e) { |
| System.out.println("test got ThreadDeath"); |
| passed++; |
| throw(e); |
| } |
| return ar; |
| } |
| |
| /* Cookbook wait-notify to track progress of test thread. */ |
| Object progressLock = new Object(); |
| private static final int NOT_STARTED = 0; |
| private static final int RUNNING = 1; |
| private static final int STOPPING = 2; |
| |
| int progressState = NOT_STARTED; |
| |
| void toState(int state) { |
| synchronized (progressLock) { |
| progressState = state; |
| progressLock.notify(); |
| } |
| } |
| |
| void waitFor(int state) { |
| synchronized (progressLock) { |
| while (progressState < state) { |
| try { |
| progressLock.wait(); |
| } catch (InterruptedException e) { |
| e.printStackTrace(); |
| System.out.println("unexpected InterruptedException"); |
| fail(); |
| } |
| } |
| if (progressState > state) { |
| System.out.println("unexpected test state change, expected " + |
| state + " but saw " + progressState); |
| fail(); |
| } |
| } |
| } |
| |
| /** |
| * Loops running test until some sort of an exception or error, |
| * expects to see ThreadDeath. |
| */ |
| public void run() { |
| try { |
| // Print before state change, so that other thread is most likely |
| // to see this thread executing calls to test() in a loop. |
| System.out.println("thread running"); |
| toState(RUNNING); |
| while (true) { |
| // (2,2) (2,10) (2,100) were observed to tickle the bug; |
| test(2, 100); |
| } |
| } catch (ThreadDeath e) { |
| // nothing to say, passing was incremented by the test. |
| } catch (Throwable e) { |
| e.printStackTrace(); |
| System.out.println("unexpected Throwable " + e); |
| fail(); |
| } |
| toState(STOPPING); |
| } |
| |
| /** |
| * Runs a single trial of the test in a thread. |
| * No single trial is definitive, since the ThreadDeath |
| * exception might not land in the tested region of code. |
| */ |
| public static void threadTest() throws InterruptedException { |
| Test8004741 t = new Test8004741(); |
| t.start(); |
| t.waitFor(RUNNING); |
| Thread.sleep(100); |
| System.out.println("stopping thread"); |
| t.stop(); |
| t.waitFor(STOPPING); |
| t.join(); |
| } |
| |
| public static void main(String[] args) throws Exception { |
| // Warm up "test" |
| // t will never be started. |
| for (int n = 0; n < 11000; n++) { |
| test(2, 100); |
| } |
| |
| // Will this sleep help ensure that the compiler is run? |
| Thread.sleep(500); |
| passed = 0; |
| |
| try { |
| test(-1, 100); |
| System.out.println("Missing NegativeArraySizeException #1"); |
| fail(); |
| } catch ( java.lang.NegativeArraySizeException e ) { |
| System.out.println("Saw expected NegativeArraySizeException #1"); |
| } |
| |
| try { |
| test(100, -1); |
| fail(); |
| System.out.println("Missing NegativeArraySizeException #2"); |
| fail(); |
| } catch ( java.lang.NegativeArraySizeException e ) { |
| System.out.println("Saw expected NegativeArraySizeException #2"); |
| } |
| |
| /* Test repetitions. If the test succeeds-mostly, it succeeds, |
| * as long as it does not crash (the outcome if the exception range |
| * table entry for the array allocation is missing). |
| */ |
| int N = 12; |
| for (int n = 0; n < N; n++) { |
| threadTest(); |
| } |
| |
| if (passed > N/2) { |
| System.out.println("Saw " + passed + " out of " + N + " possible ThreadDeath hits"); |
| System.out.println("PASSED"); |
| } else { |
| System.out.println("Too few ThreadDeath hits; expected at least " + N/2 + |
| " but saw only " + passed); |
| fail(); |
| } |
| } |
| |
| static void fail() { |
| System.out.println("FAILED"); |
| System.exit(97); |
| } |
| }; |