[JAGENT] [ERROR] [OGGMON-20415] java.lang.IllegalArgumentException: source parameter must not be null

Unable to Discover jagent in OEM with error [JAGENT] [ERROR] [OGGMON-20415] java.lang.IllegalArgumentException: source parameter must not be null

Solution:

1. Stop all goldengate process including manager and jagent

ggsci> stop jagent

ggsci> stop *

ggsci> stop manager

2.Delete datastore

ggsci> delete datastore

3.Create datastore

ggsci>create datastore

4.Start all process now

ggsci> start manager

ggsci> start *

ggsci> start jagent

Note: Datastore holds monitoring information supplied by the Oracle GoldenGate Extract, Replicat, and Manager processes

Delete and recreate datastore will help in multiple jagent monitoring issues