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Error while starting cluster: java.lang.NullPointerException
I'm seeing this when joining a cluster. I think it's because windows firewall is blocking the executable. Probably the error should be more helpful.
Exception in thread "main" java.lang.reflect.InvocationTargetException
2019-02-27 15:59:45.550/11.531 Oracle Coherence GE 12.2.1.3.0 <Error> (thread=main, member=n/a): Error while starting cluster: java.lang.NullPointerException
at com.oracle.common.internal.net.MultiplexedSocketProvider$MultiplexedServerSocketChannel$1.accept(MultiplexedSocketProvider.java:871)
at com.oracle.common.net.InetAddresses.isNatLocalAddress(InetAddresses.java:1211)
at com.oracle.common.net.InetAddresses.isNatLocalAddress(InetAddresses.java:1127)
at com.tangosol.coherence.component.net.Cluster.configureSockets(Cluster.CDB:161)
at com.tangosol.coherence.component.net.Cluster.onStart(Cluster.CDB:29)
at com.tangosol.coherence.component.net.Cluster.start(Cluster.CDB:12)
at com.tangosol.coherence.component.util.SafeCluster.startCluster(SafeCluster.CDB:4)
at com.tangosol.coherence.component.util.SafeCluster.restartCluster(SafeCluster.CDB:10)
at com.tangosol.coherence.component.util.SafeCluster.ensureRunningCluster(SafeCluster.CDB:32)
at com.tangosol.coherence.component.util.SafeCluster.getRunningCluster(SafeCluster.CDB:7)
at com.tangosol.coherence.component.util.SafeCluster.start(SafeCluster.CDB:5)
at com.tangosol.net.CacheFactory.ensureCluster(CacheFactory.java:580)
at com.tangosol.coherence.component.application.console.Coherence.run(Coherence.CDB:27)
at com.tangosol.coherence.component.application.console.Coherence.main(Coherence.CDB:3)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.tangosol.net.CacheFactory.main(CacheFactory.java:1040)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.tangosol.net.CacheFactory.main(CacheFactory.java:1040)
Caused by: java.lang.NullPointerException
at com.oracle.common.internal.net.MultiplexedSocketProvider$MultiplexedServerSocketChannel$1.accept(MultiplexedSocketProvider.java:871)
at com.oracle.common.net.InetAddresses.isNatLocalAddress(InetAddresses.java:1211)
at com.oracle.common.net.InetAddresses.isNatLocalAddress(InetAddresses.java:1127)
at com.tangosol.coherence.component.net.Cluster.configureSockets(Cluster.CDB:161)
at com.tangosol.coherence.component.net.Cluster.onStart(Cluster.CDB:29)
at com.tangosol.coherence.component.net.Cluster.start(Cluster.CDB:12)
at com.tangosol.coherence.component.util.SafeCluster.startCluster(SafeCluster.CDB:4)
at com.tangosol.coherence.component.util.SafeCluster.restartCluster(SafeCluster.CDB:10)
at com.tangosol.coherence.component.util.SafeCluster.ensureRunningCluster(SafeCluster.CDB:32)
at com.tangosol.coherence.component.util.SafeCluster.getRunningCluster(SafeCluster.CDB:7)
at com.tangosol.coherence.component.util.SafeCluster.start(SafeCluster.CDB:5)
at com.tangosol.net.CacheFactory.ensureCluster(CacheFactory.java:580)
at com.tangosol.coherence.component.application.console.Coherence.run(Coherence.CDB:27)
at com.tangosol.coherence.component.application.console.Coherence.main(Coherence.CDB:3)
Answers
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It appears you're using JDK9 or later. Do you see the issue with JDK8?
-
Not sure. All my dependencies are compiled w/jdk 11 now so going back to jdk8 to reproduce the issue is not an option. I"m 99% sure it was caused by the Windows firewall probably preventing the port from opening or something.