public String convert(Object event) {
StringBuffer buf = new StringBuffer(32);
LoggingEvent le = (LoggingEvent) event;
ThrowableInformation information = le.getThrowableInformation();
if (information == null) {
return CoreGlobal.EMPTY_STRING;
}
String[] stringRep = information.getThrowableStrRep();
int length = (lengthOption > stringRep.length) ? stringRep.length : lengthOption;
if (evaluatorList != null) {
boolean printStack = true;