Summary: the tests were refactored to drop AWT dependence where it was possible.
Reviewed-by: alanb, mchung

6832374: (reflect) malformed signature can cause parser to go into infinite loop
7052898: (reflect) SignatureParser will accept strings outside of the grammar
Summary: Various signature parsing fixes; additional review by sonali.goel@oracle.com
Reviewed-by: alanb

Reviewed-by: alanb

Reviewed-by: alanb, kvn, darcy

Reviewed-by: darcy, weijun

Reviewed-by: alanb

Reviewed-by: ksrini