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78 lines
1.7 KiB
Java
78 lines
1.7 KiB
Java
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import org.aspectj.testing.Tester;
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/** @testcase PR#601 VerifyError if nested sync returning result */
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public class NestedSyncWithResult {
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public static boolean holdA;
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public static boolean aWaiterDone;
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public static boolean aHolderDone;
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public static void main(String[] args) {
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int result = Bug.bug();
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Tester.check(0 == result, "0 == result");
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checkSynchronization();
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Tester.checkAllEvents();
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}
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public static void checkSynchronization() {
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final StringBuffer sb = new StringBuffer();
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Tester.expectEvent("holding A; releasing A; invoked bug; ");
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final boolean[] holdAstarted = new boolean[] { false };
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holdA = true;
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Runnable aHolder = new Runnable() {
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public void run() {
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boolean wroteWait = false;
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synchronized (Bug.lockB) {
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holdAstarted[0] = true;
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while (holdA) {
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if (!wroteWait) {
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wroteWait = true;
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sb.append("holding A; ");
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}
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sleep();
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}
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sb.append("releasing A; ");
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}
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aHolderDone = true;
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}
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};
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Runnable aWaiter = new Runnable() {
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public void run() {
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while (!holdAstarted[0]) {
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sleep();
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}
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Bug.bug();
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sb.append("invoked bug; ");
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aWaiterDone = true;
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}
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};
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new Thread(aHolder).start();
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new Thread(aWaiter).start();
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sleep();
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holdA = false;
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while (!aWaiterDone && !aHolderDone) {
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sleep();
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}
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Tester.event(sb.toString());
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//System.err.println("got: " + sb.toString());
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}
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public static void sleep() {
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try {
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Thread.currentThread().sleep(300);
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} catch (InterruptedException e) {
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} // ignore
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}
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}
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class Bug {
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public static Object lockA = new Object();
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public static Object lockB = new Object();
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static int bug() {
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synchronized (lockA) {
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synchronized (lockB) {
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return 0;
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}
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}
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}
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}
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