Resolution:
Description:
=========
Below NullPointerException (NPE) is seen with localport for Cache is set to N and for Inference its set to N+1, when tangosol.coherence.localport.adjust=false.

+++++++++++++++++++++Error starting inference engine
[[ Error: 2011 Jun 16 20:31:45:390 GMT +8 mushaikh-i564bit.apac.tibco.com Warning [main] - [runtime.service] Initializing Coherence failed
java.lang.NullPointerException
    at com.tangosol.coherence.component.net.TcpRing.ensureSelector(TcpRing.CDB:7)
    at com.tangosol.coherence.component.net.TcpRing.setServerSocketChannel(TcpRing.CDB:20)
    at com.tangosol.coherence.component.net.Cluster.onStart(Cluster.CDB:510)
    at com.tangosol.coherence.component.net.Cluster.start(Cluster.CDB:11)
    at com.tangosol.coherence.component.util.SafeCluster.startCluster(SafeCluster.CDB:3)
    at com.tangosol.coherence.component.util.SafeCluster.restartCluster(SafeCluster.CDB:7)
    at com.tangosol.coherence.component.util.SafeCluster.ensureRunningCluster(SafeCluster.CDB:26)
    at com.tangosol.coherence.component.util.SafeCluster.start(SafeCluster.CDB:2)
    at com.tangosol.net.CacheFactory.ensureCluster(CacheFactory.java:998)
    at com.tangosol.net.DefaultConfigurableCacheFactory.ensureServiceInternal(DefaultConfigurableCacheFactory.java:953)
    at com.tangosol.net.DefaultConfigurableCacheFactory.ensureService(DefaultConfigurableCacheFactory.java:892)
    at com.tangosol.net.DefaultConfigurableCacheFactory.ensureService(DefaultConfigurableCacheFactory.java:330)
    at com.tibco.cep.runtime.service.om.coherence.cluster.CacheCluster.initCoherence(CacheCluster.java:899)
    at com.tibco.cep.runtime.service.om.coherence.cluster.CacheCluster.initialize(CacheCluster.java:1002)
    at com.tibco.cep.runtime.session.impl.RuleServiceProviderImpl.initCluster(RuleServiceProviderImpl.java:871)
    at com.tibco.cep.runtime.session.impl.RuleServiceProviderImpl.configure(RuleServiceProviderImpl.java:238)
    at com.tibco.cep.container.standalone.BEMain.jumpStart(BEMain.java:130)
    at com.tibco.cep.container.standalone.BEMain.main(BEMain.java:52)
]]]
+++++++++++++++++++++


Environment:
==========
TIBCO Product name and version: TIBCO BusinessEvents 4.x
Operating System(s): All

Cause:
=====
NullPointerException (NPE) is the result of a port conflict. This is expected as Coherence itself opens up additional UDP port (+1 of TCP port mentioned in cdd) for internal cluster communication.

Resolution:
========
If you specify Cache Engine localport prop to (N), it is necessary to have Inf engine localport prop to (N+2) or more and adjust prop = false, to avoid the reported exception.

NullPointerException (NPE) is seen with localport for Cache is set to N and for Inference its set to N+1, when tangosol.coherence.localport.adjust=false.