If any errors occur during the enclave initialization user exit, the standard system action occurs because Language Environment condition handling has not yet been established.

Any errors occurring during the enclave termination user exit lead to abnormal termination (through an abend) of the Language Environment environment.

If there is a program check during the enclave termination user exit and TRAP(ON) is in effect, the application ends abnormally with ABEND code 4044 and reason code 2. If there is a program check during the enclave termination user exit and TRAP(OFF) was specified, the application ends abnormally without additional error checking support. Language Environment performs no condition handling; error handling is performed by the operating system.

Language Environment takes the same actions as described previously for program checks during the process termination user exit.