question: public boolean hasUnsupportedCriticalExtension ( ) { Set extns = getCriticalExtensionOIDs ( ) ; if ( extns == null ) { return false ; } extns . remove ( RFC3280CertPathUtilities . ISSUING_DISTRIBUTION_POINT ) ; extns . remove ( RFC3280CertPathUtilities . DELTA_CRL_INDICATOR ) ; return ! extns . isEmpty ( ) ; }
target:  Will return true if any extensions are present and marked as critical as we currently dont handle any extensions!