fixing synchronization issues
Use delegation for accessing the transaction task factory
Partway there (safe point)
Fixed up JTA integration
Replace assert instanceof checks by if ( instanceof) throws IllegalArgumentException statements. Also: make sure that MSCLogger is used for null parameter validation and check for null parameters on TransactionControllerContext subclasses.
At ServiceBuilderImpl: fix mistaken MSCLogger.SERVICE.methodParameter(...) statements, the correct is throw MSCLogger.SERVICE.methodParameter(...)
Squash this change with other commit associated to validation
Remove needless casting (Transaction) transaction.
Add test to ServiceContext other methods and validations. Run it with both ParentServiceContext and ServiceContextImpl