Aug 27, 2026 9:33:16 PM com.google.common.util.concurrent.AbstractFuture executeListener SEVERE: RuntimeException while executing runnable CallbackListener{org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$DynSubscription$4@e625896} with executor MoreExecutors.directExecutor() java.lang.NullPointerException: Cannot invoke "org.opendaylight.mdsal.dom.api.DOMTransactionChain.newWriteOnlyTransaction()" because "this.txChain" is null at org.opendaylight.restconf.server.mdsal.MdsalRestconfStreamRegistry.updateSubscriptionReceivers(MdsalRestconfStreamRegistry.java:558) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$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:1126) at com.google.common.util.concurrent.DirectExecutor.execute(DirectExecutor.java:30) at com.google.common.util.concurrent.AbstractFuture.executeListener(AbstractFuture.java:1021) at com.google.common.util.concurrent.AbstractFuture.addListener(AbstractFuture.java:486) at com.google.common.util.concurrent.FluentFuture$TrustedFuture.addListener(FluentFuture.java:115) at com.google.common.util.concurrent.Futures.addCallback(Futures.java:1092) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$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$DynSubscriptionResource.removeRegistration(AbstractRestconfStreamRegistry.java:458) at org.opendaylight.yangtools.concepts.AbstractRegistration.close(AbstractRegistration.java:65) at java.base/java.util.ArrayList.forEach(ArrayList.java:1596) at org.opendaylight.restconf.server.spi.DefaultTransportSession.removeRegistration(DefaultTransportSession.java:141) at org.opendaylight.yangtools.concepts.AbstractRegistration.close(AbstractRegistration.java:65) at org.opendaylight.restconf.server.RestconfSession.channelInactive(RestconfSession.java:73) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:251) at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) at io.netty.handler.codec.MessageAggregator.channelInactive(MessageAggregator.java:438) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:251) at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) at io.netty.handler.codec.MessageAggregator.channelInactive(MessageAggregator.java:438) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:251) at io.netty.channel.CombinedChannelDuplexHandler$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:251) 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$6.run(AbstractChannel.java:676) 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:1204) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at java.base/java.lang.Thread.run(Thread.java:1583) 21:33:16.384 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:16.384 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 21:33:16.384 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:16.385 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 21:33:16.386 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 21:33:16.386 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /rests, default encoding: JSON, default pretty print: false 21:33:16.387 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because transport is not configured 21:33:16.696 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 21:33:16.697 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 21:33:16.697 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 21:33:16.697 [restconf-netty-e2e-4] WARN i.n.channel.DefaultChannelPipeline - An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. java.lang.NullPointerException: Cannot invoke "org.opendaylight.mdsal.dom.api.DOMTransactionChain.newWriteOnlyTransaction()" because "this.txChain" is null at org.opendaylight.restconf.server.mdsal.MdsalRestconfStreamRegistry.removeSubscription(MdsalRestconfStreamRegistry.java:422) at org.opendaylight.restconf.server.spi.AbstractRestconfStreamRegistry$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$DynSubscriptionResource.removeRegistration(AbstractRestconfStreamRegistry.java:458) at org.opendaylight.yangtools.concepts.AbstractRegistration.close(AbstractRegistration.java:65) at java.base/java.util.ArrayList.forEach(ArrayList.java:1596) at org.opendaylight.restconf.server.spi.DefaultTransportSession.removeRegistration(DefaultTransportSession.java:141) at org.opendaylight.yangtools.concepts.AbstractRegistration.close(AbstractRegistration.java:65) at org.opendaylight.restconf.server.RestconfSession.channelInactive(RestconfSession.java:73) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:251) at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) at io.netty.handler.codec.MessageAggregator.channelInactive(MessageAggregator.java:438) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:251) at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) at io.netty.handler.codec.MessageAggregator.channelInactive(MessageAggregator.java:438) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:251) at io.netty.channel.CombinedChannelDuplexHandler$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:251) 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$6.run(AbstractChannel.java:676) 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:1204) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at java.base/java.lang.Thread.run(Thread.java:1583) 21:33:16.700 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:16.700 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 21:33:16.700 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:16.700 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 21:33:16.701 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 21:33:16.701 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /rests, default encoding: JSON, default pretty print: false 21:33:16.703 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because transport is not configured 21:33:17.011 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 21:33:17.011 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 21:33:17.011 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 21:33:17.014 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:17.015 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 21:33:17.015 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:17.015 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 21:33:17.017 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 21:33:17.017 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /rests, default encoding: JSON, default pretty print: false 21:33:17.018 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because transport is not configured 21:33:17.428 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 21:33:17.428 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 21:33:17.428 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 21:33:17.432 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:17.432 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 21:33:17.432 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:17.432 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 21:33:17.434 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 21:33:17.434 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /rests, default encoding: JSON, default pretty print: false 21:33:17.435 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because transport is not configured 21:33:17.741 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 21:33:17.742 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 21:33:17.742 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 21:33:17.744 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:17.745 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 21:33:17.745 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:17.745 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 21:33:17.746 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 21:33:17.746 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /rests, default encoding: JSON, default pretty print: false 21:33:17.747 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because transport is not configured 21:33:18.054 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 21:33:18.054 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 21:33:18.054 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 21:33:18.057 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:18.057 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 21:33:18.057 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:18.057 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 21:33:18.059 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 21:33:18.059 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /rests, default encoding: JSON, default pretty print: false 21:33:18.059 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because transport is not configured 21:33:18.466 [restconf-netty-e2e-5] 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:251) at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) at io.netty.handler.codec.MessageAggregator.channelInactive(MessageAggregator.java:438) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:251) at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) at io.netty.handler.codec.MessageAggregator.channelInactive(MessageAggregator.java:438) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:251) at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelInactive(CombinedChannelDuplexHandler.java:416) at io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:427) at io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:392) at io.netty.channel.CombinedChannelDuplexHandler.channelInactive(CombinedChannelDuplexHandler.java:219) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:251) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelInactive(DefaultChannelPipeline.java:1424) at io.netty.channel.DefaultChannelPipeline.fireChannelInactive(DefaultChannelPipeline.java:876) at io.netty.channel.AbstractChannel$AbstractUnsafe$6.run(AbstractChannel.java:676) 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:1204) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at java.base/java.lang.Thread.run(Thread.java:1583) 21:33:18.466 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 21:33:18.467 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 21:33:18.467 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 21:33:18.469 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:18.469 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 21:33:18.469 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:18.469 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 21:33:18.471 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 21:33:18.471 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /rests, default encoding: JSON, default pretty print: false 21:33:18.471 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because transport is not configured 21:33:18.778 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 21:33:18.778 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 21:33:18.778 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 21:33:18.781 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:18.782 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 21:33:18.782 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:18.782 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 21:33:18.784 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 21:33:18.784 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /rests, default encoding: JSON, default pretty print: false 21:33:18.784 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because transport is not configured 21:33:19.191 [restconf-netty-e2e-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:251) at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) at io.netty.handler.codec.MessageAggregator.channelInactive(MessageAggregator.java:438) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:251) at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) at io.netty.handler.codec.MessageAggregator.channelInactive(MessageAggregator.java:438) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:251) at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelInactive(CombinedChannelDuplexHandler.java:416) at io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:427) at io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:392) at io.netty.channel.CombinedChannelDuplexHandler.channelInactive(CombinedChannelDuplexHandler.java:219) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:251) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelInactive(DefaultChannelPipeline.java:1424) at io.netty.channel.DefaultChannelPipeline.fireChannelInactive(DefaultChannelPipeline.java:876) at io.netty.channel.AbstractChannel$AbstractUnsafe$6.run(AbstractChannel.java:676) 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:1204) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at java.base/java.lang.Thread.run(Thread.java:1583) 21:33:19.192 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 21:33:19.192 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 21:33:19.192 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 21:33:19.195 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:19.196 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 21:33:19.196 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:19.196 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 21:33:19.197 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 21:33:19.197 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /rests, default encoding: JSON, default pretty print: false 21:33:19.198 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because transport is not configured 21:33:19.505 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 21:33:19.505 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 21:33:19.505 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 21:33:19.508 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:19.509 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 21:33:19.509 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:19.509 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 21:33:19.510 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 21:33:19.510 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /rests, default encoding: JSON, default pretty print: false 21:33:19.511 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because transport is not configured 21:33:19.825 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 21:33:19.826 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 21:33:19.826 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped 21:33:19.828 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:19.828 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router started 21:33:19.828 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router started 21:33:19.829 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership acquired – will write OPERATIONAL view 21:33:19.830 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with service class org.opendaylight.restconf.server.mdsal.MdsalRestconfServer 21:33:19.830 [main] INFO o.o.r.s.RestconfTransportChannelListener - Initialized with base path: /rests, default encoding: JSON, default pretty print: false 21:33:19.831 [main] INFO o.o.restconf.server.NettyEndpoint - HTTP/3 is disabled because transport is not configured 21:33:20.137 [main] INFO o.o.r.s.m.MdsalRestconfStreamRegistry - Cluster leadership lost – stop writing OPERATIONAL view 21:33:20.137 [main] INFO o.o.m.d.broker.DOMNotificationRouter - DOM Notification Router stopped 21:33:20.137 [main] INFO o.o.mdsal.dom.broker.DOMRpcRouter - DOM RPC/Action router stopped