BZ-1026048 - Misleading error message on JAASUserGroupCallback load fail

(cherry picked from commit 3417ba20f9de7bbf66f55e5c269057f26d1a67eb)
BZ-1025324 - WebServiceWorkItemHandler cannot call operations with more than 1 parameter

(cherry picked from commit 5183d286a73db5874d967e1b49b408f4ac0595c2)