JMon monitors cannot be persistent.

A persistent monitor can use the Apama Time Format and MemoryStore correlator plug-ins and the chunk types contained by the events defined by those plug-ins. A persistent monitor cannot use any other chunk types. This means that a persistent monitor cannot use an event or plug-in that references a chunk type even if the application does not use those chunks.

Please note those upgrading to 5.3 onwards with applications using persistence should read the information about backwards incompatibility here: Backwards incompatibility with persisted projects recovered to 5.3 from older versions