MSIR.1073
MSIR.1073 Public friend not allowed for public class
A friend clause in a public shared block, declaring another class that can access public members of the class containing the declaration, can only be defined in a private class.
Response:
Message attributes:
| RETCODEO=0 | Sets online return code | 
|---|---|
| RETCODEB=4 | Sets batch (single user) return code | 
| CLASS=E | Error class; the message can be suppressed with the X'04' bit setting of the MSGCTL parameter | 
| AUDITER | Writes the message with line type ER to the audit trail | 
| COUNT | Increments the error count (ERCNT) parameter | 
| ECHO | Displays the line that caused the error |