6954510: TEST_BUG: Testcase failure com/sun/jdi/BreakpointWithFullGC.sh

Reviewed-by: sla, sspitsyn

test/com/sun/jdi/BreakpointWithFullGC.sh

 #!/bin/sh
 
 #
-# Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2009, 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
@@ -62,6 +62,7 @@ public class $1 {
             System.out.println("top of loop");     // @1 breakpoint
             init(1000000);
             objList.clear();
+            System.gc();
             System.out.println("bottom of loop");  // @1 breakpoint
         }
         System.out.println("end of test");         // @1 breakpoint