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8302870: More information needed from failures in vmTestbase ThreadUtils.waitThreadState

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Reviewed-by: dholmes, sspitsyn
This commit is contained in:
Kevin Walls 2023-02-22 09:29:57 +00:00
parent 7f35389533
commit 5e1d1b7940
1 changed files with 28 additions and 5 deletions
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33
test/hotspot/jtreg/vmTestbase/nsk/monitoring/share/thread/ThreadUtils.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2007, 2023, 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
@ -25,6 +25,8 @@ package nsk.monitoring.share.thread;
import nsk.share.log.Log;
import nsk.share.TestFailure;
import java.io.PrintStream;
import java.lang.management.LockInfo;
import java.lang.management.MonitorInfo;
import java.lang.management.ThreadInfo;
@ -203,6 +205,14 @@ public final class ThreadUtils {
}
public static void printStackTrace(PrintStream out, Thread t) {
StackTraceElement[] stacktrace = t.getStackTrace();
for (int i = 0; i < stacktrace.length; i++) {
StackTraceElement ste = stacktrace[i];
out.println(INDENT + "at " + ste.toString());
}
}
/**
* Dump information about threads.
*
@ -218,20 +228,33 @@ public final class ThreadUtils {
}
}
// Most uses of waitThreadState usually succeed without retries.
// These values should avoid spurious failures.
public final static int waitThreadStateRetries = 10;
public final static long waitThreadStateSleepTime = 100;
public final static long waitThreadStateSleepTime = 1000;
public static void waitThreadState(Thread thread, Thread.State state) {
int retries = 0;
long ctime = System.currentTimeMillis();
long startTime = System.currentTimeMillis();
long elapsedTime = 0;
while (thread.getState() != state) {
if (retries++ > waitThreadStateRetries)
throw new TestFailure("Thread " + thread + " with current state " + thread.getState() + " did not reach state " + state + " with number of retries: " + retries + ", time: " + (System.currentTimeMillis() - ctime));
if (retries++ > waitThreadStateRetries) {
// Failed to see desired state, give info to help diagnose the isuse.
// Show the thread, and fail with Exception showing retries and time taken.
elapsedTime = System.currentTimeMillis() - startTime;
System.err.println("waitThreadState: problem thread: " + thread);
printStackTrace(System.err, thread);
throw new TestFailure("Thread " + thread + " with current state " + thread.getState() + " did not reach state "
+ state + " with number of retries: " + retries + ", time: " + elapsedTime);
}
try {
Thread.sleep(waitThreadStateSleepTime);
} catch (InterruptedException e) {
}
}
// Show retries and time, so we know what "normal" looks like:
elapsedTime = System.currentTimeMillis() - startTime;
System.out.println("waitThreadState: OK. retries: " + retries + " time: " + elapsedTime);
}
/**