| /* |
| * Copyright (c) 2007, 2018, 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. |
| */ |
| package nsk.jvmti.ForceEarlyReturn; |
| |
| import nsk.share.Wicket; |
| import java.io.PrintStream; |
| import nsk.share.Consts; |
| import java.util.concurrent.locks.ReentrantLock; |
| |
| |
| enum MethodType { Object, Int, Long, Float, Double, Void }; |
| |
| public class EarlyReturnThread001 extends Thread { |
| public volatile int state = Consts.TEST_PASSED; |
| public volatile boolean earlyReturned = true; |
| public volatile boolean stop = false; |
| |
| private boolean complain = true; |
| private PrintStream out = System.out; |
| |
| // To check whether java.util.concurrent.locks stay locked after forced early return |
| private ReentrantLock lock = new ReentrantLock(); |
| |
| public Wicket startingBarrier = new Wicket(); |
| public Object barrier = new Object(); |
| |
| private static Object ordinaryResult = new Object(); |
| |
| private MethodType methodType; |
| |
| public void stopThread() { |
| stop = true; |
| } |
| |
| public EarlyReturnThread001 ( |
| MethodType _mtype |
| , PrintStream _out |
| ) |
| { |
| methodType = _mtype; |
| out = _out; |
| } |
| |
| public void run() { |
| |
| switch(methodType) { |
| case Object: |
| if (methodObject() == ordinaryResult) { |
| state = Consts.TEST_FAILED; |
| } |
| break; |
| case Int: |
| if (methodInt() == 0) { |
| state = Consts.TEST_FAILED; |
| } |
| break; |
| case Long: |
| if (methodLong() == 0) { |
| state = Consts.TEST_FAILED; |
| } |
| break; |
| case Float: |
| if (methodFloat() == 0) { |
| state = Consts.TEST_FAILED; |
| } |
| break; |
| case Double: |
| if (methodDouble() == 0) { |
| state = Consts.TEST_FAILED; |
| } |
| break; |
| case Void: |
| methodVoid(); |
| break; |
| } |
| |
| // Check whether any errors were encountered during thread execution |
| if (state != Consts.TEST_PASSED) { |
| out.println("Invoked method wasn't forced to early return, since it returned predefined value."); |
| } |
| |
| // Check whether locks stay locked |
| if (!lock.isLocked()) { |
| out.println("java.util.concurrent.lock.ReentrantLock was released after method force early return."); |
| state = Consts.TEST_FAILED; |
| } |
| |
| } |
| |
| public Object methodObject() { |
| try { |
| try { |
| try { |
| try { |
| try { |
| synchronized(barrier) { |
| lock.lock(); |
| startingBarrier.unlock(); |
| } |
| |
| // loop until the main thread forces early return |
| int i = 0; int n = 1000; |
| while (!stop) { |
| if (n <= 0) { n = 1000; } |
| if (i > n) { i = 0; n--; } |
| i++; |
| } |
| |
| if (earlyReturned) { |
| out.println("TEST FAILED: a tested frame wasn't returned"); |
| state = Consts.TEST_FAILED; |
| complain = false; |
| } |
| |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| |
| return ordinaryResult; |
| } |
| |
| public int methodInt() { |
| try { |
| try { |
| try { |
| try { |
| try { |
| synchronized(barrier) { |
| lock.lock(); |
| startingBarrier.unlock(); |
| } |
| |
| // loop until the main thread forces early return |
| int i = 0; int n = 1000; |
| while (!stop) { |
| if (n <= 0) { n = 1000; } |
| if (i > n) { i = 0; n--; } |
| i++; |
| } |
| |
| if (earlyReturned) { |
| out.println("TEST FAILED: a tested frame wasn't returned"); |
| state = Consts.TEST_FAILED; |
| complain = false; |
| } |
| |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| |
| return 0; |
| } |
| |
| public long methodLong() { |
| try { |
| try { |
| try { |
| try { |
| try { |
| synchronized(barrier) { |
| lock.lock(); |
| startingBarrier.unlock(); |
| } |
| |
| // loop until the main thread forces early return |
| int i = 0; int n = 1000; |
| while (!stop) { |
| if (n <= 0) { n = 1000; } |
| if (i > n) { i = 0; n--; } |
| i++; |
| } |
| |
| if (earlyReturned) { |
| out.println("TEST FAILED: a tested frame wasn't returned"); |
| state = Consts.TEST_FAILED; |
| complain = false; |
| } |
| |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| |
| return 0; |
| } |
| |
| public float methodFloat() { |
| try { |
| try { |
| try { |
| try { |
| try { |
| synchronized(barrier) { |
| lock.lock(); |
| startingBarrier.unlock(); |
| } |
| |
| // loop until the main thread forces early return |
| int i = 0; int n = 1000; |
| while (!stop) { |
| if (n <= 0) { n = 1000; } |
| if (i > n) { i = 0; n--; } |
| i++; |
| } |
| |
| if (earlyReturned) { |
| out.println("TEST FAILED: a tested frame wasn't returned"); |
| state = Consts.TEST_FAILED; |
| complain = false; |
| } |
| |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| |
| return 0; |
| } |
| |
| public double methodDouble() { |
| try { |
| try { |
| try { |
| try { |
| try { |
| synchronized(barrier) { |
| lock.lock(); |
| startingBarrier.unlock(); |
| } |
| |
| // loop until the main thread forces early return |
| int i = 0; int n = 1000; |
| while (!stop) { |
| if (n <= 0) { n = 1000; } |
| if (i > n) { i = 0; n--; } |
| i++; |
| } |
| |
| if (earlyReturned) { |
| out.println("TEST FAILED: a tested frame wasn't returned"); |
| state = Consts.TEST_FAILED; |
| complain = false; |
| } |
| |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| |
| return 0; |
| } |
| |
| public void methodVoid() { |
| try { |
| try { |
| try { |
| try { |
| try { |
| synchronized(barrier) { |
| lock.lock(); |
| startingBarrier.unlock(); |
| } |
| |
| // loop until the main thread forces early return |
| int i = 0; int n = 1000; |
| while (!stop) { |
| if (n <= 0) { n = 1000; } |
| if (i > n) { i = 0; n--; } |
| i++; |
| } |
| |
| if (earlyReturned) { |
| out.println("TEST FAILED: a tested frame wasn't returned"); |
| state = Consts.TEST_FAILED; |
| complain = false; |
| } |
| |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } finally { if (complain) { out.println("!!! Try-Finally block was executed !!!"); state = Consts.TEST_FAILED; } } |
| } |
| } |
