From bfb65f55ca7773f587631fff85a62ff56f01fdf4 Mon Sep 17 00:00:00 2001
From: jbachorik <unknown>
Date: Fri, 3 Apr 2015 15:40:35 +0200
Subject: [PATCH] 8074368: ThreadMXBean.getThreadInfo() corrupts memory when
 called with empty array for thread ids Reviewed-by: mchung

---
 src/share/vm/services/management.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/share/vm/services/management.cpp b/src/share/vm/services/management.cpp
index 9875c6ee7..a8e6b0b27 100644
--- a/src/share/vm/services/management.cpp
+++ b/src/share/vm/services/management.cpp
@@ -1107,6 +1107,8 @@ static void do_thread_dump(ThreadDumpResult* dump_result,
                            bool with_locked_monitors,
                            bool with_locked_synchronizers,
                            TRAPS) {
+  // no need to actually perform thread dump if no TIDs are specified
+  if (num_threads == 0) return;
 
   // First get an array of threadObj handles.
   // A JavaThread may terminate before we get the stack trace.
-- 
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