8081652: [TESTBUG] java/lang/management/ThreadMXBean/ThreadMXBeanStateTest.java timed out intermittently

Reviewed-by: cjplummer, dholmes

Author: Daniil Titov

test/jdk/ProblemList.txt

@@ -577,8 +577,6 @@ java/lang/instrument/RetransformBigClass.sh                     8065756 generic-
 java/lang/management/MemoryMXBean/Pending.java                  8158837 generic-all
 java/lang/management/MemoryMXBean/PendingAllGC.sh               8158837 generic-all
 
-java/lang/management/ThreadMXBean/ThreadMXBeanStateTest.java    8081652 generic-all
-
 javax/management/monitor/DerivedGaugeMonitorTest.java         8042211 generic-all
 javax/management/remote/mandatory/connection/MultiThreadDeadLockTest.java 8227337 generic-all
 

test/jdk/java/lang/Thread/ThreadStateController.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2020, 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
@@ -359,7 +359,16 @@ private void log(String msg, Object ... params) {
      * @throws InterruptedException
      */
     public String getLog() throws InterruptedException {
-        this.join();
+        return getLog(0);
+    }
+
+    /**
+     * Waits at most {@code millis} milliseconds for the controller
+     * to complete the test run and returns the generated log.
+     * A timeout of {@code 0} means to wait forever.
+     */
+    public String getLog(long millis) throws InterruptedException {
+        this.join(millis);
 
         return logger.toString();
     }

test/jdk/java/lang/management/ThreadMXBean/ThreadMXBeanStateTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2020, 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
@@ -36,6 +36,8 @@
  * @run main ThreadMXBeanStateTest
  */
 
+import jdk.test.lib.Utils;
+
 import java.lang.management.ManagementFactory;
 import java.lang.management.ThreadMXBean;
 import java.lang.management.ThreadInfo;
@@ -112,7 +114,7 @@ public static void main(String[] argv) throws Exception {
             thread.checkThreadState(TERMINATED);
         } finally {
             try {
-                System.out.println(thread.getLog());
+                System.out.println(thread.getLog(Utils.adjustTimeout(60_000)));
             } catch (InterruptedException e) {
                 e.printStackTrace();
                 System.out.println("TEST FAILED: Unexpected exception.");