--- jsr166/src/test/tck/JSR166TestCase.java	2015/10/03 21:09:42	1.156
+++ jsr166/src/test/tck/JSR166TestCase.java	2015/10/03 22:20:05	1.157
@@ -191,8 +191,10 @@ public class JSR166TestCase extends Test
     static volatile TestCase currentTestCase;
     static {
         Runnable checkForWedgedTest = new Runnable() { public void run() {
+            // avoid spurious reports with enormous runsPerTest
+            final int timeoutMinutes = Math.max(runsPerTest / 10, 1);
             for (TestCase lastTestCase = currentTestCase;;) {
-                try { MINUTES.sleep(10); }
+                try { MINUTES.sleep(timeoutMinutes); }
                 catch (InterruptedException unexpected) { break; }
                 if (lastTestCase == currentTestCase) {
                     System.err.println