SQL & PL/SQL

Hello,

I have the following code where I am specifying raise_application error when condition is true so that exception will raise in my java code with matching error_code
20122. But I have noticed that error is getting logged in my db_table which I have specified in EXCEPTION WHEN OTHERS
THEN.

I would like to know why there is no exception is getting raised in java class with error code 20122

PLSQL Code.

BEGIN

 IF (value > 0)
    THEN
        raise_application_error (-20122, 'DB Commit Not Allowed');
    END IF;

___

EXCEPTION
    WHEN NO_DATA_FOUND
    THEN
        NULL;
    WHEN OTHERS
    THEN
         insert into db_errors values(DBMS_UTILITY.format_error_backtrace,SQLERRM);

Thanks