7200306: SunPKCS11 provider delays the check of DSA key size for SHA1withDSA to sign() instead of init()
Summary: Add key length checks to P11Signature class
Reviewed-by: mullan

7024697: SessionRef.dispose() should determine if the token referred to by the token object is still valid
Reviewed-by: valeriep

Reviewed-by: darcy, weijun