WFLY-1521
fix for  WFLY-332
Fix WFLY-100
Fix WFLY-100 the write-attribute(name=proxy-list,value=...) has also no tests.
Remove the test for ModelType.EXPRESSION as we have validateResolvedParameter().
Simplify the throw.
Arrange fix for WFLY-332.
Arrange merging issues.
remove the used file...
Add max-post-size to limit the size of uploads that are accepted