DECLARE
  jo ora_java.jobject;
  ex ora_java.jobject;
BEGIN
  --
  IF :main_block.conversion_type = 1 THEN
    :main_block.to_farenheit := 
       TempConvertStub.CelsiusToFahrenheit(jo,:main_block.celsius);
  ELSE
    :main_blockto_celsius := 
       TempConvertStub.FahrenheitToCelsius(jo,:main_block.farenheit);
  END IF;
  --
EXCEPTION
 WHEN ORA_JAVA.JAVA_ERROR then 
  fnd_message.set_string('ORA_JAVA.JAVA_ERROR: '
            ||ORA_JAVA.LAST_ERROR);
  fnd_message.error;
 WHEN ORA_JAVA.EXCEPTION_THROWN then 
  ex := ORA_JAVA.LAST_EXCEPTION;
  fnd_message.set_string('ORA_JAVA.EXCEPTION_THROWN: '
            ||Exception_.ToString(ex));
  fnd_message.error;
END;