Apache CXF Interceptor for Custom SoapFaults Part 2. - Checking for relevant Exceptions

WeatherServiceXmlValidationInterceptor.java

//...
private boolean containsFaultIndicatingNotSchemeCompliantXml(Throwable faultCause, String faultMessage) {
	if(faultCause instanceof UnmarshalException
    	// 1.) If the root-Element of the SoapBody is syntactically correct, but not scheme-compliant,
		// 		there is no UnmarshalException and we have to look for
		// 2.) Missing / lead to Faults without Causes, but to Messages like "Unexpected wrapper element XYZ found. Expected"
		// 		One could argue, that this is syntactically incorrect, but here we just take it as Non-Scheme-compliant
    	|| isNotNull(faultMessage) && faultMessage.contains("Unexpected wrapper element")) {
		return true;
	}
	return false;
}

private boolean containsFaultIndicatingSyntacticallyIncorrectXml(Throwable faultCause, String faultMessage) {
	if(faultCause instanceof WstxException
		// If Xml-Header is invalid, there is a wrapped Cause in the original Cause we have to check
		|| isNotNull(faultCause) && faultCause.getCause() instanceof WstxUnexpectedCharException
    	|| faultCause instanceof IllegalArgumentException) {
		return true;
	}
	return false;
}
//...