--- jsr166/src/test/tck/JSR166TestCase.java	2014/06/09 18:17:37	1.117
+++ jsr166/src/test/tck/JSR166TestCase.java	2014/06/16 20:13:54	1.119
@@ -116,6 +116,13 @@ public class JSR166TestCase extends Test
         Boolean.getBoolean("jsr166.expensiveTests");
 
     /**
+     * If true, also run tests that are not part of the official tck
+     * because they test unspecified implementation details.
+     */
+    protected static final boolean testImplementationDetails =
+        Boolean.getBoolean("jsr166.testImplementationDetails");
+
+    /**
      * If true, report on stdout all "slow" tests, that is, ones that
      * take more than profileThreshold milliseconds to execute.
      */