Tries to convert most of the JUnit 4 assertions and assumptions to AssertJ format.
Works for assertTrue(), assertFalse(), assertNull(), assertNotNull(), assertEquals(), assertNotEquals(), assertSame() assertNotSame(), assertArrayEquals(). Copes with variants with message and without, handles special versions for double and float types (including arrays). Also converts assumeTrue(), assumeFalse(), assumeNotNull(), assumeNoException() to assumeThat().

Does not support Hamcrest-Matchers. If you need that kind of conversion, you might want to check out the Assertions2AssertJ plugin by Ric Emery.