Index: BidiTest.java =================================================================== --- BidiTest.java (revision 429253) +++ BidiTest.java (working copy) @@ -922,5 +922,13 @@ } catch (NullPointerException e) { // expected } + + try { + Bidi.reorderVisually(new byte[] { 2, 1, 3, 0 }, 1, s, 0, -1); + fail("should throw IAE"); + } catch (IllegalArgumentException e) { + // expected + } + } }