13:01:03.456 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:03.456 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 13:01:03.456 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:03.456 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 13:01:03.458 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 13:01:03.458 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /restconf, default encoding: JSON, default pretty print: false Mar 14, 2026 1:01:03 PM com.google.common.util.concurrent.AbstractFuture executeListener SEVERE: RuntimeException while executing runnable CallbackListener{org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscription$4@5c08467a} with executor MoreExecutors.directExecutor() java.lang.NullPointerException: Cannot invoke "org.opendaylight.mdsal.dom.api.DOMTransactionChain.newWriteOnlyTransaction()" because "this.txChain" is null at org.opendaylight.restconf.server.mdsal.MdsalRestconfStreamRegistry.updateSubscriptionReceivers(MdsalRestconfStreamRegistry.java:557) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscription.updateOperationalDatastore(AbstractRestconfStreamRegistry.java:207) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscription.removeReceiver(AbstractRestconfStreamRegistry.java:190) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscription$1$1.removeRegistration(AbstractRestconfStreamRegistry.java:173) at org.opendaylight.yangtools.concepts.AbstractRegistration.close(AbstractRegistration.java:65) at org.opendaylight.restconf.server.ChannelSender.endOfStream(ChannelSender.java:70) at org.opendaylight.restconf.server.spi.Subscriber.endOfStream(Subscriber.java:183) at java.base/java.util.concurrent.ConcurrentHashMap$KeySetView.forEach(ConcurrentHashMap.java:4709) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscription$4.onSuccess(AbstractRestconfStreamRegistry.java:311) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscription$4.onSuccess(AbstractRestconfStreamRegistry.java:307) at com.google.common.util.concurrent.Futures$CallbackListener.run(Futures.java:1132) at com.google.common.util.concurrent.DirectExecutor.execute(DirectExecutor.java:30) at com.google.common.util.concurrent.AbstractFuture.executeListener(AbstractFuture.java:1004) at com.google.common.util.concurrent.AbstractFuture.addListener(AbstractFuture.java:469) at com.google.common.util.concurrent.FluentFuture$TrustedFuture.addListener(FluentFuture.java:114) at com.google.common.util.concurrent.Futures.addCallback(Futures.java:1098) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscription.deleteSubscription(AbstractRestconfStreamRegistry.java:307) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscription.channelClosed(AbstractRestconfStreamRegistry.java:295) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscription.controlSessionClosed(AbstractRestconfStreamRegistry.java:380) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscriptionResource.removeRegistration(AbstractRestconfStreamRegistry.java:458) at org.opendaylight.yangtools.concepts.AbstractRegistration.close(AbstractRegistration.java:65) at java.base/java.util.ArrayList.forEach(ArrayList.java:1596) at org.opendaylight.restconf.server.spi.DefaultTransportSession.removeRegistration(DefaultTransportSession.java:141) at org.opendaylight.yangtools.concepts.AbstractRegistration.close(AbstractRegistration.java:65) at org.opendaylight.restconf.server.RestconfSession.channelInactive(RestconfSession.java:73) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:250) at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) at io.netty.handler.codec.MessageAggregator.channelInactive(MessageAggregator.java:441) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:250) at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) at io.netty.handler.codec.MessageAggregator.channelInactive(MessageAggregator.java:441) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:250) at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelInactive(CombinedChannelDuplexHandler.java:416) at io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:427) at io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:392) at io.netty.channel.CombinedChannelDuplexHandler.channelInactive(CombinedChannelDuplexHandler.java:219) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:250) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelInactive(DefaultChannelPipeline.java:1424) at io.netty.channel.DefaultChannelPipeline.fireChannelInactive(DefaultChannelPipeline.java:876) at io.netty.channel.AbstractChannel$AbstractUnsafe$8.run(AbstractChannel.java:684) at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:141) at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:535) at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:201) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1195) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at java.base/java.lang.Thread.run(Thread.java:1583) 13:01:03.458 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because TLS is not configured 13:01:03.664 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 13:01:03.664 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 13:01:03.664 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 13:01:03.664 [restconf-netty-subscription-2] WARN i.n.channel.DefaultChannelPipeline - An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. java.lang.NullPointerException: Cannot invoke "org.opendaylight.mdsal.dom.api.DOMTransactionChain.newWriteOnlyTransaction()" because "this.txChain" is null at org.opendaylight.restconf.server.mdsal.MdsalRestconfStreamRegistry.removeSubscription(MdsalRestconfStreamRegistry.java:421) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscription.deleteSubscription(AbstractRestconfStreamRegistry.java:307) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscription.channelClosed(AbstractRestconfStreamRegistry.java:295) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscription.controlSessionClosed(AbstractRestconfStreamRegistry.java:380) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscriptionResource.removeRegistration(AbstractRestconfStreamRegistry.java:458) at org.opendaylight.yangtools.concepts.AbstractRegistration.close(AbstractRegistration.java:65) at java.base/java.util.ArrayList.forEach(ArrayList.java:1596) at org.opendaylight.restconf.server.spi.DefaultTransportSession.removeRegistration(DefaultTransportSession.java:141) at org.opendaylight.yangtools.concepts.AbstractRegistration.close(AbstractRegistration.java:65) at org.opendaylight.restconf.server.RestconfSession.channelInactive(RestconfSession.java:73) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:250) at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) at io.netty.handler.codec.MessageAggregator.channelInactive(MessageAggregator.java:441) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:250) at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) at io.netty.handler.codec.MessageAggregator.channelInactive(MessageAggregator.java:441) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:250) at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelInactive(CombinedChannelDuplexHandler.java:416) at io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:427) at io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:392) at io.netty.channel.CombinedChannelDuplexHandler.channelInactive(CombinedChannelDuplexHandler.java:219) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:250) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelInactive(DefaultChannelPipeline.java:1424) at io.netty.channel.DefaultChannelPipeline.fireChannelInactive(DefaultChannelPipeline.java:876) at io.netty.channel.AbstractChannel$AbstractUnsafe$8.run(AbstractChannel.java:684) at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:141) at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:535) at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:201) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1195) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at java.base/java.lang.Thread.run(Thread.java:1583) 13:01:03.666 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:03.666 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 13:01:03.666 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:03.666 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 13:01:03.668 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 13:01:03.668 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /restconf, default encoding: JSON, default pretty print: false 13:01:03.669 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because TLS is not configured 13:01:03.874 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 13:01:03.874 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 13:01:03.874 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 13:01:03.876 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:03.877 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 13:01:03.877 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:03.877 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 13:01:03.878 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 13:01:03.878 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /restconf, default encoding: JSON, default pretty print: false 13:01:03.879 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because TLS is not configured 13:01:04.187 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 13:01:04.187 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 13:01:04.187 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 13:01:04.189 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:04.190 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 13:01:04.190 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:04.190 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 13:01:04.191 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 13:01:04.191 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /restconf, default encoding: JSON, default pretty print: false 13:01:04.192 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because TLS is not configured 13:01:04.396 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 13:01:04.396 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 13:01:04.396 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 13:01:04.398 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:04.399 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 13:01:04.399 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:04.399 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 13:01:04.400 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 13:01:04.400 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /restconf, default encoding: JSON, default pretty print: false 13:01:04.401 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because TLS is not configured 13:01:04.606 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 13:01:04.606 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 13:01:04.606 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 13:01:04.608 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:04.609 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 13:01:04.609 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:04.609 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 13:01:04.610 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 13:01:04.610 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /restconf, default encoding: JSON, default pretty print: false 13:01:04.611 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because TLS is not configured 13:01:04.916 [restconf-netty-subscription-1] WARN i.n.channel.DefaultChannelPipeline - An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. java.lang.IllegalStateException: Cannot transition from END to END at org.opendaylight.restconf.server.spi.AbstractRestconfStreamSubscription.setState(AbstractRestconfStreamSubscription.java:78) at org.opendaylight.restconf.server.spi.RestconfStream$Subscription.terminate(RestconfStream.java:305) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscription.controlSessionClosed(AbstractRestconfStreamRegistry.java:384) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscriptionResource.removeRegistration(AbstractRestconfStreamRegistry.java:458) at org.opendaylight.yangtools.concepts.AbstractRegistration.close(AbstractRegistration.java:65) at java.base/java.util.ArrayList.forEach(ArrayList.java:1596) at org.opendaylight.restconf.server.spi.DefaultTransportSession.removeRegistration(DefaultTransportSession.java:141) at org.opendaylight.yangtools.concepts.AbstractRegistration.close(AbstractRegistration.java:65) at org.opendaylight.restconf.server.RestconfSession.channelInactive(RestconfSession.java:73) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:250) at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) at io.netty.handler.codec.MessageAggregator.channelInactive(MessageAggregator.java:441) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:250) at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) at io.netty.handler.codec.MessageAggregator.channelInactive(MessageAggregator.java:441) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:250) at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelInactive(CombinedChannelDuplexHandler.java:416) at io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:427) at io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:392) at io.netty.channel.CombinedChannelDuplexHandler.channelInactive(CombinedChannelDuplexHandler.java:219) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:250) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelInactive(DefaultChannelPipeline.java:1424) at io.netty.channel.DefaultChannelPipeline.fireChannelInactive(DefaultChannelPipeline.java:876) at io.netty.channel.AbstractChannel$AbstractUnsafe$8.run(AbstractChannel.java:684) at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:141) at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:535) at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:201) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1195) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at java.base/java.lang.Thread.run(Thread.java:1583) 13:01:04.916 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 13:01:04.916 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 13:01:04.917 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 13:01:04.919 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:04.919 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 13:01:04.919 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:04.919 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 13:01:04.921 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 13:01:04.921 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /restconf, default encoding: JSON, default pretty print: false 13:01:04.921 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because TLS is not configured 13:01:05.126 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 13:01:05.126 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 13:01:05.126 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 13:01:05.128 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:05.129 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 13:01:05.129 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:05.129 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 13:01:05.131 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 13:01:05.131 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /restconf, default encoding: JSON, default pretty print: false 13:01:05.131 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because TLS is not configured 13:01:05.438 [restconf-netty-subscription-7] WARN i.n.channel.DefaultChannelPipeline - An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. java.lang.IllegalStateException: Cannot transition from END to END at org.opendaylight.restconf.server.spi.AbstractRestconfStreamSubscription.setState(AbstractRestconfStreamSubscription.java:78) at org.opendaylight.restconf.server.spi.RestconfStream$Subscription.terminate(RestconfStream.java:305) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscription.controlSessionClosed(AbstractRestconfStreamRegistry.java:384) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscriptionResource.removeRegistration(AbstractRestconfStreamRegistry.java:458) at org.opendaylight.yangtools.concepts.AbstractRegistration.close(AbstractRegistration.java:65) at java.base/java.util.ArrayList.forEach(ArrayList.java:1596) at org.opendaylight.restconf.server.spi.DefaultTransportSession.removeRegistration(DefaultTransportSession.java:141) at org.opendaylight.yangtools.concepts.AbstractRegistration.close(AbstractRegistration.java:65) at org.opendaylight.restconf.server.RestconfSession.channelInactive(RestconfSession.java:73) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:250) at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) at io.netty.handler.codec.MessageAggregator.channelInactive(MessageAggregator.java:441) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:250) at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) at io.netty.handler.codec.MessageAggregator.channelInactive(MessageAggregator.java:441) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:250) at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelInactive(CombinedChannelDuplexHandler.java:416) at io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:427) at io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:392) at io.netty.channel.CombinedChannelDuplexHandler.channelInactive(CombinedChannelDuplexHandler.java:219) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:250) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelInactive(DefaultChannelPipeline.java:1424) at io.netty.channel.DefaultChannelPipeline.fireChannelInactive(DefaultChannelPipeline.java:876) at io.netty.channel.AbstractChannel$AbstractUnsafe$8.run(AbstractChannel.java:684) at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:141) at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:535) at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:201) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1195) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at java.base/java.lang.Thread.run(Thread.java:1583) 13:01:05.438 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 13:01:05.438 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 13:01:05.438 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 13:01:05.441 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:05.441 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 13:01:05.441 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:05.441 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 13:01:05.443 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 13:01:05.443 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /restconf, default encoding: JSON, default pretty print: false 13:01:05.443 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because TLS is not configured 13:01:05.649 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 13:01:05.649 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 13:01:05.649 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 13:01:05.652 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:05.652 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 13:01:05.652 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:05.652 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 13:01:05.654 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 13:01:05.654 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /restconf, default encoding: JSON, default pretty print: false 13:01:05.655 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because TLS is not configured 13:01:05.863 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 13:01:05.863 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 13:01:05.863 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 13:01:05.868 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:05.868 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 13:01:05.868 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:05.868 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 13:01:05.869 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 13:01:05.869 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /restconf, default encoding: JSON, default pretty print: false 13:01:05.870 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because TLS is not configured 13:01:06.175 [restconf-netty-subscription-7] WARN i.n.channel.DefaultChannelPipeline - An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. io.netty.handler.codec.PrematureChannelClosureException: Channel closed while still aggregating message at io.netty.handler.codec.MessageAggregator.channelInactive(MessageAggregator.java:436) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:250) at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelInactive(CombinedChannelDuplexHandler.java:416) at io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:427) at io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:392) at io.netty.handler.codec.http.HttpClientCodec$Decoder.channelInactive(HttpClientCodec.java:410) at io.netty.channel.CombinedChannelDuplexHandler.channelInactive(CombinedChannelDuplexHandler.java:219) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:250) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelInactive(DefaultChannelPipeline.java:1424) at io.netty.channel.DefaultChannelPipeline.fireChannelInactive(DefaultChannelPipeline.java:876) at io.netty.channel.AbstractChannel$AbstractUnsafe$8.run(AbstractChannel.java:684) at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:141) at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:535) at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:201) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1195) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at java.base/java.lang.Thread.run(Thread.java:1583) 13:01:06.175 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 13:01:06.175 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 13:01:06.175 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 13:01:06.178 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:06.179 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 13:01:06.179 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 13:01:06.179 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 13:01:06.180 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 13:01:06.180 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /restconf, default encoding: JSON, default pretty print: false 13:01:06.181 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because TLS is not configured 13:01:06.385 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 13:01:06.385 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 13:01:06.385 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped