Exception asserts initial design (should be very handy in upcoming jdk8).
Exception asserts tests fix (fail message).
New Assert.assertNotThrows method, exception assertions refactoring + tests.
Fixed fail message for Assert.assertNotThrows + new tests.
Exception asserts tests refactoring.
Exception asserts tests refactoring.
Tests for Assert.assertThrows(..., ..., Matcher).
Javadoc typos.