Error Handling and the PeopleCode Java Functions
Java functions throw exceptions to indicate something unusual has happened. However, all exceptions from Java called by PeopleCode are turned into fatal errors. You can catch these exception by enclosing the call to Java in a Try-Catch PeopleCode block. If you do not try to catch these exception, the PeopleCode program is terminated, and the user transaction must be canceled.
PeopleSoft recommends that you write a Java wrapper to handle errors.
Use either the All or None built-in functions to check values that are returned if you think you may call a Java method that is defined to return a string, but returns a Null object reference instead. Java Null object references are automatically converted into PeopleCode Null object references.
Accessing the Application Log File
For doing additional error handling in your application, you can access the application log file using the PeopleCode WriteToLog built-in function. For example: