RFR(trivial): 8204529 gc/TestAllocateHeapAtMultiple.java fail with Agent 7 timed out

[Daniel D. Daugherty]

Greetings,

Erik J. has done a bunch of analysis on the timeout failures for
this test: gc/TestAllocateHeapAtMultiple.java. He has determined
that increasing the default timeout value will help this test
pass on the machines where it was timing out.

JDK-8204529 gc/TestAllocateHeapAtMultiple.java fail with Agent 7 timed out
https://bugs.openjdk.java.net/browse/JDK-8204529

along with a bunch of analysis for that test in:

JDK-8205526 tests timeout intermittently in "agentvm" mode
https://bugs.openjdk.java.net/browse/JDK-8205526


Here's the context diff for the trivial fix:

$ hg diff
diff -r 3e0ebf913679 test/hotspot/jtreg/gc/TestAllocateHeapAtMultiple.java
--- a/test/hotspot/jtreg/gc/TestAllocateHeapAtMultiple.java    Thu Nov 
08 19:16:16 2018 -0500
+++ b/test/hotspot/jtreg/gc/TestAllocateHeapAtMultiple.java    Thu Nov 
08 19:51:21 2018 -0500
@@ -1,5 +1,5 @@
  /*
- * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017, 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
@@ -27,6 +27,7 @@
   * @library /test/lib
   * @modules java.base/jdk.internal.misc
   * @requires vm.bits == "64" & vm.gc != "Z" & os.family != "aix"
+ * @run main/timeout=360 TestAllocateHeapAtMultiple
   */

  import jdk.test.lib.JDKToolFinder;


Thanks, in advance, for any comments, suggestions or questions.

Dan