Index: C:/harmony/trunk_0427/modules/math/src/test/java/tests/api/java/math/BigIntegerTest.java =================================================================== --- C:/harmony/trunk_0427/modules/math/src/test/java/tests/api/java/math/BigIntegerTest.java (revision 419509) +++ C:/harmony/trunk_0427/modules/math/src/test/java/tests/api/java/math/BigIntegerTest.java (working copy) @@ -218,6 +218,8 @@ } assertTrue("Too many false positives - may indicate a problem", fails <= 1); + + assertTrue(new BigInteger(9, 9, new Random()).isProbablePrime(500)); } /**