8000456: Add programmatic deadlock detection in SSLEngineDeadlock
Reviewed-by: wetmore
--- a/jdk/test/sun/security/ssl/com/sun/net/ssl/internal/ssl/SSLEngineImpl/SSLEngineDeadlock.java Tue Jun 18 16:03:10 2013 -0700
+++ b/jdk/test/sun/security/ssl/com/sun/net/ssl/internal/ssl/SSLEngineImpl/SSLEngineDeadlock.java Tue Jun 18 18:50:13 2013 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2007, 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
@@ -21,15 +21,14 @@
* questions.
*/
+// SunJSSE does not support dynamic system properties, no way to re-use
+// system properties in samevm/agentvm mode.
+
/*
* @test
* @bug 6492872
* @summary Deadlock in SSLEngine
* @run main/othervm SSLEngineDeadlock
- *
- * SunJSSE does not support dynamic system properties, no way to re-use
- * system properties in samevm/agentvm mode.
- *
* @author Brad R. Wetmore
*/
@@ -74,6 +73,7 @@
import java.io.*;
import java.security.*;
import java.nio.*;
+import java.lang.management.*;
public class SSLEngineDeadlock {
@@ -144,6 +144,8 @@
}
SSLEngineDeadlock test = new SSLEngineDeadlock();
test.runTest();
+
+ detectDeadLock();
}
System.out.println("Test Passed.");
}
@@ -361,6 +363,22 @@
}
/*
+ * Detect dead lock
+ */
+ private static void detectDeadLock() throws Exception {
+ ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
+ long[] threadIds = threadBean.findDeadlockedThreads();
+ if (threadIds != null && threadIds.length != 0) {
+ for (long id : threadIds) {
+ ThreadInfo info =
+ threadBean.getThreadInfo(id, Integer.MAX_VALUE);
+ System.out.println("Deadlocked ThreadInfo: " + info);
+ }
+ throw new Exception("Found Deadlock!");
+ }
+ }
+
+ /*
* Logging code
*/
private static boolean resultOnce = true;