When I try to start Cassandra after patching my OS, I get this error:
Exception (java.lang.AbstractMethodError) encountered during startup: org.apache.cassandra.utils.JMXServerUtils$Exporter.exportObject(Ljava/rmi/Remote;ILjava/rmi/server/RMIClientSocketFactory;Ljava/rmi/server/RMIServerSocketFactory;Lsun/misc/ObjectInputFilter;)Ljava/rmi/Remote;
java.lang.AbstractMethodError: org.apache.cassandra.utils.JMXServerUtils$Exporter.exportObject(Ljava/rmi/Remote;ILjava/rmi/server/RMIClientSocketFactory;Ljava/rmi/server/RMIServerSocketFactory;Lsun/misc/ObjectInputFilter;)Ljava/rmi/Remote;
at javax.management.remote.rmi.RMIJRMPServerImpl.export(RMIJRMPServerImpl.java:150)
at javax.management.remote.rmi.RMIJRMPServerImpl.export(RMIJRMPServerImpl.java:135)
at javax.management.remote.rmi.RMIConnectorServer.start(RMIConnectorServer.java:405)
at org.apache.cassandra.utils.JMXServerUtils.createJMXServer(JMXServerUtils.java:104)
at org.apache.cassandra.service.CassandraDaemon.maybeInitJmx(CassandraDaemon.java:143)
at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:188)
at com.datastax.bdp.server.DseDaemon.setup(DseDaemon.java:476)
at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:59
at com.datastax.bdp.DseModule.main(DseModule.java:93)
ERROR [main] 2018-01-17 13:18:03,330 CassandraDaemon.java:705 - Exception encountered during startup
java.lang.AbstractMethodError: org.apache.cassandra.utils.JMXServerUtils$Exporter.exportObject(Ljava/rmi/Remote;ILjava/rmi/server/RMIClientSocketFactory;Ljava/rmi/server/RMIServerSocketFactory;Lsun/misc/ObjectInputFilter;)Ljava/rmi/Remote;
Does anyone know why, with no other changes, I'm running into this error now?