--- jsr166/src/test/tck/JSR166TestCase.java	2015/10/03 19:29:11	1.152
+++ jsr166/src/test/tck/JSR166TestCase.java	2015/10/03 19:37:43	1.153
@@ -519,6 +519,7 @@ public class JSR166TestCase extends Test
      * the same test have no effect.
      */
     public void threadRecordFailure(Throwable t) {
+        printAllStackTraces();
         threadFailure.compareAndSet(null, t);
     }