docs: public static ErrorDescription create(Throwable ex, String correlationId) {
      	ErrorDescription description = new ErrorDescription();
      	description.setType(ex.getClass().getCanonicalName());
      	description.setCategory(ErrorCategory.Unknown);
      	description.setStatus(500);
      	description.setCode("Unknown");
      	description.setMessage(ex.getMessage());
      	
      	Throwable t = ex.getCause();    	
      	description.setCause(t != null ? t.toString() : null);
      	
      	StackTraceElement[] ste = ex.getStackTrace();
      	StringBuilder builder = new StringBuilder();
      	if (ste != null) {
      		for (int i = 0; i < ste.length; i++) {
      			if (builder.length() > 0)
      				builder.append(" ");
  				builder.append(ste[i].toString());
      		}
      	}    			    	
      	description.setStackTrace(builder.toString()); 	
      	description.setCorrelationId(correlationId);
      	
      	return description;
      }