Cannot Access REST Cache Key Listing In Clustered Environment

Issue

• To see a listing of cache keys, we access URL http://192.168.1.7:8080/rest/my_default_cache, where my_default_cache is the name of our cache. When using a single node setup, we are able to access the aforementioned URL. However, this URL does not work in a JDG clustered environment. Using curl -v also results in a 500 error. The failed attempts result in NotSerializableException errors within the logs:

ERROR [org.infinispan.remoting.rpc.RpcManagerImpl] (REST-ServerWorker-4-5) ISPN000073: Unexpected error while replicating: org.infinispan.commons.marshall.NotSerializableException: org.infinispan.rest.operations.mediatypes.impl.TextOutputPrinter
Caused by: an exception which occurred:
    in field capturedArgs
    in object org.infinispan.rest.operations.mediatypes.impl.TextOutputPrinter$$Lambda$495/1513688834@5bc665d


ERROR [org.infinispan.remoting.rpc.RpcManagerImpl] (REST-ServerWorker-4-2) ISPN000073: Unexpected error while replicating: org.infinispan.commons.marshall.NotSerializableException: org.infinispan.rest.operations.mediatypes.impl.XMLOutputPrinter
Caused by: an exception which occurred:
    in field capturedArgs
    in object org.infinispan.rest.operations.mediatypes.impl.XMLOutputPrinter$$Lambda$383/396654057@35342415