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diff src/share/vm/runtime/java.cpp @ 12275:63147986a428

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8019835: Strings interned in different threads equal but does not == Summary: Add -XX:+VerifyStringTableAtExit option and code to verify StringTable invariants. Reviewed-by: rdurbin, sspitsyn, coleenp
author dcubed
date Wed, 18 Sep 2013 07:02:10 -0700
parents 71180a6e5080
children cefad50507d8 d13d7aba8c12
line wrap: on
line diff
--- a/src/share/vm/runtime/java.cpp	Tue Sep 17 20:20:03 2013 +0200
+++ b/src/share/vm/runtime/java.cpp	Wed Sep 18 07:02:10 2013 -0700
@@ -544,6 +544,19 @@
   // it will run into trouble when system destroys static variables.
   MemTracker::shutdown(MemTracker::NMT_normal);
 
+  if (VerifyStringTableAtExit) {
+    int fail_cnt = 0;
+    {
+      MutexLocker ml(StringTable_lock);
+      fail_cnt = StringTable::verify_and_compare_entries();
+    }
+
+    if (fail_cnt != 0) {
+      tty->print_cr("ERROR: fail_cnt=%d", fail_cnt);
+      guarantee(fail_cnt == 0, "unexpected StringTable verification failures");
+    }
+  }
+
   #undef BEFORE_EXIT_NOT_RUN
   #undef BEFORE_EXIT_RUNNING
   #undef BEFORE_EXIT_DONE