JDO-823: Fix more sonarcloud issues of type Code Smells - Generic exc…

…eptions should never be thrown

api/src/main/java/javax/jdo/JDOHelper.java

@@ -1727,7 +1727,7 @@ private static Object invoke(
       } else if (cause instanceof InvocationTargetException) {
         throw (InvocationTargetException) cause;
       } else {
-        throw new RuntimeException(cause);
+        throw new JDOFatalInternalException(MSG.msg("EXC_GetPMFUnexpectedException"), cause);
       }
     }
   }