self.registryResponse.oclIsUndefined() or 
self.registryResponse.registryErrorList.oclIsUndefined()
 or 
self.registryResponse.registryErrorList.registryError->forAll(re : RegistryErrorType |
	(not re.severity.oclIsUndefined()) and 
	( 
		re.severity='urn:oasis:names:tc:ebxml-regrep:ErrorSeverityType:Error' or 
		re.severity='urn:oasis:names:tc:ebxml-regrep:ErrorSeverityType:Warning' 
	) and 
	(not re.errorCode.oclIsUndefined()) and 
	(not re.location.oclIsUndefined()) and 
	(not re.codeContext.oclIsUndefined())
)