Root Cause: All the Java classes that were added in V12 to the JAVA API, will not work, because in the older version of RM the Java API (V11) was used.
Update to a fix version listed below or a newer version if available.
Fix Status: Released
Request Management 3.2.2 – Available
Request Management 3.1.5 – Available
Request Management 3.0.10 - Available