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at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:80) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:64) [hazelcast-3.11.1.jar!/:?] 
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201] 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_201] 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_201] 
at com.hazelcast.util.executor.CachedExecutorServiceDelegate$Worker.run(CachedExecutorServiceDelegate.java:227) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.executor.impl.DistributedExecutorService$CallableProcessor.run(DistributedExecutorService.java:275) [hazelcast-3.11.1.jar!/:?] 
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_201] 
at org.jivesoftware.openfire.plugin.util.cache.ClusteredCacheFactory$CallableTask.call(ClusteredCacheFactory.java:560) [hazelcast-2.4.0.jar!/:?] 
at org.jivesoftware.openfire.muc.cluster.BroadcastPresenceRequest.run(BroadcastPresenceRequest.java:67) [xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.cluster.MUCRoomTask.execute(MUCRoomTask.java:79) [xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.cluster.MUCRoomTask.getRoom(MUCRoomTask.java:58) ~[xmppserver-4.3.1.jar:4.3.1] 
java.lang.IllegalArgumentException: MUC service not found for subdomain: amazon 
2019.03.26 11:57:40 org.jivesoftware.openfire.muc.cluster.MUCRoomTask - MUC service not found for subdomain: amazon 
at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:80) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:64) [hazelcast-3.11.1.jar!/:?] 
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201] 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_201] 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_201] 
at com.hazelcast.util.executor.CachedExecutorServiceDelegate$Worker.run(CachedExecutorServiceDelegate.java:227) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.executor.impl.DistributedExecutorService$CallableProcessor.run(DistributedExecutorService.java:275) [hazelcast-3.11.1.jar!/:?] 
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_201] 
at org.jivesoftware.openfire.plugin.util.cache.ClusteredCacheFactory$CallableTask.call(ClusteredCacheFactory.java:560) [hazelcast-2.4.0.jar!/:?] 
at org.jivesoftware.openfire.muc.cluster.OccupantLeftEvent.run(OccupantLeftEvent.java:78) [xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.cluster.MUCRoomTask.execute(MUCRoomTask.java:79) [xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.cluster.MUCRoomTask.getRoom(MUCRoomTask.java:58) ~[xmppserver-4.3.1.jar:4.3.1] 
java.lang.IllegalArgumentException: MUC service not found for subdomain: amazon 
2019.03.26 11:57:40 org.jivesoftware.openfire.muc.cluster.MUCRoomTask - MUC service not found for subdomain: amazon 
at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:80) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:64) [hazelcast-3.11.1.jar!/:?] 
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201] 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_201] 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_201] 
at com.hazelcast.util.executor.CachedExecutorServiceDelegate$Worker.run(CachedExecutorServiceDelegate.java:227) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.executor.impl.DistributedExecutorService$CallableProcessor.run(DistributedExecutorService.java:275) [hazelcast-3.11.1.jar!/:?] 
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_201] 
at org.jivesoftware.openfire.plugin.util.cache.ClusteredCacheFactory$CallableTask.call(ClusteredCacheFactory.java:560) [hazelcast-2.4.0.jar!/:?] 
at org.jivesoftware.openfire.muc.cluster.BroadcastMessageRequest.run(BroadcastMessageRequest.java:65) [xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.cluster.MUCRoomTask.execute(MUCRoomTask.java:79) [xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.cluster.MUCRoomTask.getRoom(MUCRoomTask.java:58) ~[xmppserver-4.3.1.jar:4.3.1] 
java.lang.IllegalArgumentException: MUC service not found for subdomain: amazon 
2019.03.26 11:57:40 org.jivesoftware.openfire.muc.cluster.MUCRoomTask - MUC service not found for subdomain: amazon 
at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:80) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:64) [hazelcast-3.11.1.jar!/:?] 
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201] 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_201] 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_201] 
at com.hazelcast.util.executor.CachedExecutorServiceDelegate$Worker.run(CachedExecutorServiceDelegate.java:227) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.executor.impl.DistributedExecutorService$CallableProcessor.run(DistributedExecutorService.java:275) [hazelcast-3.11.1.jar!/:?] 
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_201] 
at org.jivesoftware.openfire.plugin.util.cache.ClusteredCacheFactory$CallableTask.call(ClusteredCacheFactory.java:560) [hazelcast-2.4.0.jar!/:?] 
at org.jivesoftware.openfire.muc.cluster.BroadcastPresenceRequest.run(BroadcastPresenceRequest.java:67) [xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.cluster.MUCRoomTask.execute(MUCRoomTask.java:79) [xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.cluster.MUCRoomTask.getRoom(MUCRoomTask.java:58) ~[xmppserver-4.3.1.jar:4.3.1] 
java.lang.IllegalArgumentException: MUC service not found for subdomain: amazon 
2019.03.26 11:57:40 org.jivesoftware.openfire.muc.cluster.MUCRoomTask - MUC service not found for subdomain: amazon 
at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:80) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:64) [hazelcast-3.11.1.jar!/:?] 
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201] 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_201] 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_201] 
at com.hazelcast.util.executor.CachedExecutorServiceDelegate$Worker.run(CachedExecutorServiceDelegate.java:227) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.executor.impl.DistributedExecutorService$CallableProcessor.run(DistributedExecutorService.java:275) [hazelcast-3.11.1.jar!/:?] 
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_201] 
at org.jivesoftware.openfire.plugin.util.cache.ClusteredCacheFactory$CallableTask.call(ClusteredCacheFactory.java:560) [hazelcast-2.4.0.jar!/:?] 
at org.jivesoftware.openfire.muc.cluster.OccupantAddedEvent.run(OccupantAddedEvent.java:125) [xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.cluster.MUCRoomTask.execute(MUCRoomTask.java:79) [xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.cluster.MUCRoomTask.getRoom(MUCRoomTask.java:58) ~[xmppserver-4.3.1.jar:4.3.1] 
java.lang.IllegalArgumentException: MUC service not found for subdomain: amazon 
2019.03.26 11:57:40 org.jivesoftware.openfire.muc.cluster.MUCRoomTask - MUC service not found for subdomain: amazon 
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201] 
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683) [jetty-util-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765) [jetty-util-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366) [jetty-util-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126) [jetty-util-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168) [jetty-util-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310) [jetty-util-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333) [jetty-util-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118) [jetty-io-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) [jetty-io-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305) [jetty-io-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:364) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.server.Server.handle(Server.java:503) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:220) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1242) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473) [jetty-servlet-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1340) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) [jetty-security-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146) [jetty-server-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533) [jetty-servlet-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634) [jetty-servlet-9.4.12.v20180830.jar:9.4.12.v20180830] 
at com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77) [sitemesh-2.4.2.jar:?] 
at com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129) [sitemesh-2.4.2.jar:?] 
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) [jetty-servlet-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.jivesoftware.admin.AuthCheckFilter.doFilter(AuthCheckFilter.java:216) [xmppserver-4.3.1.jar:4.3.1] 
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642) [jetty-servlet-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.jivesoftware.admin.PluginFilter.doFilter(PluginFilter.java:226) [xmppserver-4.3.1.jar:4.3.1] 
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1655) [jetty-servlet-9.4.12.v20180830.jar:9.4.12.v20180830] 
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:865) [jetty-servlet-9.4.12.v20180830.jar:9.4.12.v20180830] 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [javax.servlet-api-3.1.0.jar:3.1.0] 
at org.jivesoftware.openfire.container.PluginServlet.service(PluginServlet.java:113) [xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.container.PluginServlet.handleServlet(PluginServlet.java:417) ~[xmppserver-4.3.1.jar:4.3.1] 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) ~[javax.servlet-api-3.1.0.jar:3.1.0] 
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:733) ~[?:?] 
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:558) ~[?:?] 
at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409) ~[?:?] 
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409) ~[?:?] 
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419) ~[?:?] 
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473) ~[?:?] 
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542) ~[?:?] 
at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84) ~[?:?] 
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) ~[?:?] 
at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108) ~[?:?] 
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) ~[?:?] 
at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302) ~[?:?] 
at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75) ~[?:?] 
at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205) ~[?:?] 
at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60) ~[?:?] 
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_201] 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_201] 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_201] 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_201] 
at org.jivesoftware.openfire.plugin.rest.service.MUCRoomMembersService.addMUCRoomMember(MUCRoomMembersService.java:22) ~[?:?] 
at org.jivesoftware.openfire.plugin.rest.controller.MUCRoomController.addMember(MUCRoomController.java:624) ~[?:?] 
java.lang.NullPointerException: null 
2019.03.26 11:57:39 org.jivesoftware.openfire.container.PluginServlet - null 
... 8 more 
at com.hazelcast.internal.serialization.impl.AbstractSerializationService.toObject(AbstractSerializationService.java:187) ~[hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.internal.serialization.impl.StreamSerializerAdapter.read(StreamSerializerAdapter.java:48) ~[hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.internal.serialization.impl.JavaDefaultSerializers$JavaSerializer.read(JavaDefaultSerializers.java:75) ~[hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.internal.serialization.impl.JavaDefaultSerializers$JavaSerializer.read(JavaDefaultSerializers.java:82) ~[hazelcast-3.11.1.jar!/:?] 
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:431) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2069) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2211) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2287) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2067) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:2118) ~[?:1.8.0_201] 
at org.jivesoftware.openfire.muc.cluster.RoomUpdatedEvent.readExternal(RoomUpdatedEvent.java:69) ~[xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.spi.LocalMUCRoom.readExternal(LocalMUCRoom.java:2779) ~[xmppserver-4.3.1.jar:4.3.1] 
Caused by: java.lang.IllegalArgumentException: MUC service not found for subdomain: amazon 
at com.hazelcast.spi.impl.operationexecutor.impl.OperationThread.run(OperationThread.java:110) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.spi.impl.operationexecutor.impl.OperationThread.process(OperationThread.java:123) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.spi.impl.operationexecutor.impl.OperationThread.process(OperationThread.java:153) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.spi.impl.operationservice.impl.OperationRunnerImpl.run(OperationRunnerImpl.java:413) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.spi.impl.operationservice.impl.OperationRunnerImpl.run(OperationRunnerImpl.java:197) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.spi.impl.operationservice.impl.OperationRunnerImpl.call(OperationRunnerImpl.java:222) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.executor.impl.operations.AbstractCallableTaskOperation$OffloadImpl.start(AbstractCallableTaskOperation.java:98) ~[hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.executor.impl.operations.AbstractCallableTaskOperation$OffloadImpl.loadCallable(AbstractCallableTaskOperation.java:106) ~[hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.internal.serialization.impl.AbstractSerializationService.toObject(AbstractSerializationService.java:193) ~[hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.internal.serialization.impl.SerializationUtil.handleException(SerializationUtil.java:63) ~[hazelcast-3.11.1.jar!/:?] 
com.hazelcast.nio.serialization.HazelcastSerializationException: java.lang.IllegalArgumentException: MUC service not found for subdomain: amazon 
2019.03.26 11:57:39 com.hazelcast.executor.impl.operations.MemberCallableTaskOperation - [ip-172-16-2-224.ap-southeast-2.compute.internal]:5701 [openfire] [3.11.1] java.lang.IllegalArgumentException: MUC service not found for subdomain: amazon 
... 8 more 
at com.hazelcast.internal.serialization.impl.AbstractSerializationService.toObject(AbstractSerializationService.java:187) ~[hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.internal.serialization.impl.StreamSerializerAdapter.read(StreamSerializerAdapter.java:48) ~[hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.internal.serialization.impl.JavaDefaultSerializers$JavaSerializer.read(JavaDefaultSerializers.java:75) ~[hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.internal.serialization.impl.JavaDefaultSerializers$JavaSerializer.read(JavaDefaultSerializers.java:82) ~[hazelcast-3.11.1.jar!/:?] 
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:431) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2069) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2211) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2287) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2067) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:2118) ~[?:1.8.0_201] 
at org.jivesoftware.openfire.muc.cluster.RoomAvailableEvent.readExternal(RoomAvailableEvent.java:63) ~[xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.spi.LocalMUCRoom.readExternal(LocalMUCRoom.java:2779) ~[xmppserver-4.3.1.jar:4.3.1] 
Caused by: java.lang.IllegalArgumentException: MUC service not found for subdomain: amazon 
at com.hazelcast.spi.impl.operationexecutor.impl.OperationThread.run(OperationThread.java:110) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.spi.impl.operationexecutor.impl.OperationThread.process(OperationThread.java:123) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.spi.impl.operationexecutor.impl.OperationThread.process(OperationThread.java:153) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.spi.impl.operationservice.impl.OperationRunnerImpl.run(OperationRunnerImpl.java:413) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.spi.impl.operationservice.impl.OperationRunnerImpl.run(OperationRunnerImpl.java:197) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.spi.impl.operationservice.impl.OperationRunnerImpl.call(OperationRunnerImpl.java:222) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.executor.impl.operations.AbstractCallableTaskOperation$OffloadImpl.start(AbstractCallableTaskOperation.java:98) ~[hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.executor.impl.operations.AbstractCallableTaskOperation$OffloadImpl.loadCallable(AbstractCallableTaskOperation.java:106) ~[hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.internal.serialization.impl.AbstractSerializationService.toObject(AbstractSerializationService.java:193) ~[hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.internal.serialization.impl.SerializationUtil.handleException(SerializationUtil.java:63) ~[hazelcast-3.11.1.jar!/:?] 
com.hazelcast.nio.serialization.HazelcastSerializationException: java.lang.IllegalArgumentException: MUC service not found for subdomain: amazon 
2019.03.26 11:57:39 com.hazelcast.executor.impl.operations.MemberCallableTaskOperation - [ip-172-16-2-224.ap-southeast-2.compute.internal]:5701 [openfire] [3.11.1] java.lang.IllegalArgumentException: MUC service not found for subdomain: amazon 
at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:80) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:64) [hazelcast-3.11.1.jar!/:?] 
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201] 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_201] 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_201] 
at com.hazelcast.util.executor.CachedExecutorServiceDelegate$Worker.run(CachedExecutorServiceDelegate.java:227) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.executor.impl.DistributedExecutorService$CallableProcessor.run(DistributedExecutorService.java:275) [hazelcast-3.11.1.jar!/:?] 
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_201] 
at org.jivesoftware.openfire.plugin.util.cache.ClusteredCacheFactory$CallableTask.call(ClusteredCacheFactory.java:560) [hazelcast-2.4.0.jar!/:?] 
at org.jivesoftware.openfire.muc.cluster.AddMember.run(AddMember.java:68) [xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.cluster.MUCRoomTask.execute(MUCRoomTask.java:79) [xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.cluster.MUCRoomTask.getRoom(MUCRoomTask.java:58) ~[xmppserver-4.3.1.jar:4.3.1] 
java.lang.IllegalArgumentException: MUC service not found for subdomain: amazon 
2019.03.26 11:57:39 org.jivesoftware.openfire.muc.cluster.MUCRoomTask - MUC service not found for subdomain: amazon 
at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:80) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:64) [hazelcast-3.11.1.jar!/:?] 
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201] 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_201] 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_201] 
at com.hazelcast.util.executor.CachedExecutorServiceDelegate$Worker.run(CachedExecutorServiceDelegate.java:227) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.executor.impl.DistributedExecutorService$CallableProcessor.run(DistributedExecutorService.java:275) [hazelcast-3.11.1.jar!/:?] 
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_201] 
at org.jivesoftware.openfire.plugin.util.cache.ClusteredCacheFactory$CallableTask.call(ClusteredCacheFactory.java:560) [hazelcast-2.4.0.jar!/:?] 
at org.jivesoftware.openfire.muc.cluster.AddMember.run(AddMember.java:68) [xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.cluster.MUCRoomTask.execute(MUCRoomTask.java:79) [xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.cluster.MUCRoomTask.getRoom(MUCRoomTask.java:58) ~[xmppserver-4.3.1.jar:4.3.1] 
java.lang.IllegalArgumentException: MUC service not found for subdomain: amazon 
2019.03.26 11:57:39 org.jivesoftware.openfire.muc.cluster.MUCRoomTask - MUC service not found for subdomain: amazon 
at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:80) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:64) [hazelcast-3.11.1.jar!/:?] 
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201] 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_201] 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_201] 
at com.hazelcast.util.executor.CachedExecutorServiceDelegate$Worker.run(CachedExecutorServiceDelegate.java:227) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.executor.impl.DistributedExecutorService$CallableProcessor.run(DistributedExecutorService.java:275) [hazelcast-3.11.1.jar!/:?] 
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_201] 
at org.jivesoftware.openfire.plugin.util.cache.ClusteredCacheFactory$CallableTask.call(ClusteredCacheFactory.java:560) [hazelcast-2.4.0.jar!/:?] 
at org.jivesoftware.openfire.muc.cluster.AddAffiliation.run(AddAffiliation.java:69) [xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.cluster.MUCRoomTask.execute(MUCRoomTask.java:79) [xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.cluster.MUCRoomTask.getRoom(MUCRoomTask.java:58) ~[xmppserver-4.3.1.jar:4.3.1] 
java.lang.IllegalArgumentException: MUC service not found for subdomain: amazon 
2019.03.26 11:57:39 org.jivesoftware.openfire.muc.cluster.MUCRoomTask - MUC service not found for subdomain: amazon 
... 8 more 
at com.hazelcast.internal.serialization.impl.AbstractSerializationService.toObject(AbstractSerializationService.java:187) ~[hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.internal.serialization.impl.StreamSerializerAdapter.read(StreamSerializerAdapter.java:48) ~[hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.internal.serialization.impl.JavaDefaultSerializers$JavaSerializer.read(JavaDefaultSerializers.java:75) ~[hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.internal.serialization.impl.JavaDefaultSerializers$JavaSerializer.read(JavaDefaultSerializers.java:82) ~[hazelcast-3.11.1.jar!/:?] 
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:431) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2069) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2211) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2287) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2067) ~[?:1.8.0_201] 
at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:2118) ~[?:1.8.0_201] 
at org.jivesoftware.openfire.muc.cluster.RoomAvailableEvent.readExternal(RoomAvailableEvent.java:63) ~[xmppserver-4.3.1.jar:4.3.1] 
at org.jivesoftware.openfire.muc.spi.LocalMUCRoom.readExternal(LocalMUCRoom.java:2779) ~[xmppserver-4.3.1.jar:4.3.1] 
Caused by: java.lang.IllegalArgumentException: MUC service not found for subdomain: amazon 
at com.hazelcast.spi.impl.operationexecutor.impl.OperationThread.run(OperationThread.java:110) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.spi.impl.operationexecutor.impl.OperationThread.process(OperationThread.java:123) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.spi.impl.operationexecutor.impl.OperationThread.process(OperationThread.java:153) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.spi.impl.operationservice.impl.OperationRunnerImpl.run(OperationRunnerImpl.java:413) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.spi.impl.operationservice.impl.OperationRunnerImpl.run(OperationRunnerImpl.java:197) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.spi.impl.operationservice.impl.OperationRunnerImpl.call(OperationRunnerImpl.java:222) [hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.executor.impl.operations.AbstractCallableTaskOperation$OffloadImpl.start(AbstractCallableTaskOperation.java:98) ~[hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.executor.impl.operations.AbstractCallableTaskOperation$OffloadImpl.loadCallable(AbstractCallableTaskOperation.java:106) ~[hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.internal.serialization.impl.AbstractSerializationService.toObject(AbstractSerializationService.java:193) ~[hazelcast-3.11.1.jar!/:?] 
at com.hazelcast.internal.serialization.impl.SerializationUtil.handleException(SerializationUtil.java:63) ~[hazelcast-3.11.1.jar!/:?] 
com.hazelcast.nio.serialization.HazelcastSerializationException: java.lang.IllegalArgumentException: MUC service not found for subdomain: amazon 
2019.03.26 11:57:39 com.hazelcast.executor.impl.operations.MemberCallableTaskOperation - [ip-172-16-2-224.ap-southeast-2.compute.internal]:5701 [openfire] [3.11.1] java.lang.IllegalArgumentException: MUC service not found for subdomain: amazon