changes classpath in java configuration. one has to specify every single element in a single tag now
modifies configuration method signatures of array setters
adds exception to catch block
adds two tests, which don't work yet
fixes npw which occured if an expression is null
the literal expression supports null values too now
improves loadArguments method from abstract invocation expression converter. array parameters and arbitrary(?) (for example String... args) are supported
fixes new array expression converter, uses an array list instead a set now
expands the test