Customizing DBTrigger message in adf - oracle-adf

Question

Hi I am trying to customize DBTrigger message in bean Here is code for it, it is displaying my customized message but as well it is displaying DBTrigger message below to my message, Kindly help me to get out of this.
public void saveLataActionListenerNew(ActionEvent actionEvent) {
System.out.println("----on click saved ");
try {
OperationBinding operationBinding = (OperationBinding)getBindings().getOperationBinding("Commit");
Object result = operationBinding.execute();
System.out.println("Errors : " + operationBinding.getErrors());
if (operationBinding.getErrors() != null) {
Iterator it = operationBinding.getErrors().iterator();
System.out.println("error = " + it);
System.out.println("size of Errors - " + operationBinding.getErrors().size());
while (it.hasNext()) {
DMLException error = (DMLException)it.next();
String errorCause = "" + error.getCause();
System.out.println("error.getCause() : " + errorCause);
if (errorCause != null && errorCause.contains("ORA-00001: unique constraint")) {
uniqueConstraint = "Lata is Exists for given State";
showMessage(uniqueConstraint, FacesMessage.SEVERITY_ERROR);
return;
}
}
}
uniqueConstraint = "Record is saved successfully";
showMessage(uniqueConstraint, FacesMessage.SEVERITY_INFO);
System.out.println("---record saved successfully");
// addPlaceCodePfl.setRendered(false);
// addPlaceCodePgl.clearInitialState();
// addPlaceCodePfl.
} catch (Exception e) {
uniqueConstraint = e.getMessage();
showMessage(uniqueConstraint, FacesMessage.SEVERITY_ERROR);
e.printStackTrace();
}