After joining the queue, it is blocked in the requestqueue, and subsequent requests cannot be allocated

[pzhu1015]

`157057 java.lang.NullPointerException: null
157058 2021.11.23 17:30:49 org.jivesoftware.xmpp.workgroup.RequestQueue - An exception occurred while trying to send status to recipient: 23@domain/annt58br30
157059 java.util.NoSuchElementException: null
157060 at java.util.LinkedList.getFirst(LinkedList.java:244) ~[?:1.8.0_144]
157061 at org.jivesoftware.xmpp.workgroup.RequestQueue.getFirst(RequestQueue.java:311) ~[fastpath-4.5.0-SNAPSHOT.jar!/:?]
157062 at org.jivesoftware.xmpp.workgroup.RequestQueue.getStatusPresence(RequestQueue.java:352) ~[fastpath-4.5.0-SNAPSHOT.jar!/:?]
157063 at org.jivesoftware.xmpp.workgroup.RequestQueue.sendStatus(RequestQueue.java:320) [fastpath-4.5.0-SNAPSHOT.jar!/:?]
157064 at org.jivesoftware.xmpp.workgroup.AgentSession.join(AgentSession.java:146) [fastpath-4.5.0-SNAPSHOT.jar!/:?]
157065 at org.jivesoftware.xmpp.workgroup.WorkgroupPresence.agentToWorkgroup(WorkgroupPresence.java:345) [fastpath-4.5.0-SNAPSHOT.jar!/:?]
157066 at org.jivesoftware.xmpp.workgroup.WorkgroupPresence.process(WorkgroupPresence.java:160) [fastpath-4.5.0-SNAPSHOT.jar!/:?]
157067 at org.jivesoftware.xmpp.workgroup.Workgroup.process(Workgroup.java:453) [fastpath-4.5.0-SNAPSHOT.jar!/:?]
157068 at org.jivesoftware.xmpp.workgroup.Workgroup.process(Workgroup.java:477) [fastpath-4.5.0-SNAPSHOT.jar!/:?]
157069 at org.jivesoftware.xmpp.workgroup.WorkgroupManager.processPacket(WorkgroupManager.java:684) [fastpath-4.5.0-SNAPSHOT.jar!/:?]
157070 at org.jivesoftware.openfire.component.InternalComponentManager$RoutableComponents.process(InternalComponentManager.java:859) [xmppserver-4.6.4.jar:4.6.4]
157071 at org.jivesoftware.openfire.spi.RoutingTableImpl.routeToComponent(RoutingTableImpl.java:451) [xmppserver-4.6.4.jar:4.6.4]
157072 at org.jivesoftware.openfire.spi.RoutingTableImpl.routePacket(RoutingTableImpl.java:266) [xmppserver-4.6.4.jar:4.6.4]
157073 at org.jivesoftware.openfire.PresenceRouter.handle(PresenceRouter.java:165) [xmppserver-4.6.4.jar:4.6.4]
157074 at org.jivesoftware.openfire.PresenceRouter.route(PresenceRouter.java:79) [xmppserver-4.6.4.jar:4.6.4]
157075 at org.jivesoftware.openfire.spi.PacketRouterImpl.route(PacketRouterImpl.java:84) [xmppserver-4.6.4.jar:4.6.4]
157076 at org.jivesoftware.openfire.SessionPacketRouter.route(SessionPacketRouter.java:118) [xmppserver-4.6.4.jar:4.6.4]
157077 at org.jivesoftware.openfire.SessionPacketRouter.route(SessionPacketRouter.java:69) [xmppserver-4.6.4.jar:4.6.4]
157078 at org.jivesoftware.openfire.http.HttpSession.sendPendingPackets(HttpSession.java:612) [xmppserver-4.6.4.jar:4.6.4]
157079 at org.jivesoftware.openfire.http.HttpSession$HttpPacketSender.run(HttpSession.java:1329) [xmppserver-4.6.4.jar:4.6.4]
157080 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_144]
157081 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_144]
157082 at java.lang.Thread.run(Thread.java:748) [?:1.8.0_144]
157083 2021.11.23 17:30:49 org.jivesoftware.xmpp.workgroup.RequestQueue - An exception occurred while trying to send detailed status to recipient: 23@domain/annt58br30
157084 java.lang.NullPointerException: null
157085 at org.jivesoftware.xmpp.workgroup.RequestQueue.getDetailedStatusPresence(RequestQueue.java:417) ~[fastpath-4.5.0-SNAPSHOT.jar!/:?]
157086 at org.jivesoftware.xmpp.workgroup.RequestQueue.sendDetailedStatus(RequestQueue.java:332) [fastpath-4.5.0-SNAPSHOT.jar!/:?]
157087 at org.jivesoftware.xmpp.workgroup.AgentSession.join(AgentSession.java:147) [fastpath-4.5.0-SNAPSHOT.jar!/:?]
157088 at org.jivesoftware.xmpp.workgroup.WorkgroupPresence.agentToWorkgroup(WorkgroupPresence.java:345) [fastpath-4.5.0-SNAPSHOT.jar!/:?]
157089 at org.jivesoftware.xmpp.workgroup.WorkgroupPresence.process(WorkgroupPresence.java:160) [fastpath-4.5.0-SNAPSHOT.jar!/:?]
157090 at org.jivesoftware.xmpp.workgroup.Workgroup.process(Workgroup.java:453) [fastpath-4.5.0-SNAPSHOT.jar!/:?]
157091 at org.jivesoftware.xmpp.workgroup.Workgroup.process(Workgroup.java:477) [fastpath-4.5.0-SNAPSHOT.jar!/:?]
157092 at org.jivesoftware.xmpp.workgroup.WorkgroupManager.processPacket(WorkgroupManager.java:684) [fastpath-4.5.0-SNAPSHOT.jar!/:?]
157093 at org.jivesoftware.openfire.component.InternalComponentManager$RoutableComponents.process(InternalComponentManager.java:859) [xmppserver-4.6.4.jar:4.6.4]
157094 at org.jivesoftware.openfire.spi.RoutingTableImpl.routeToComponent(RoutingTableImpl.java:451) [xmppserver-4.6.4.jar:4.6.4]
157095 at org.jivesoftware.openfire.spi.RoutingTableImpl.routePacket(RoutingTableImpl.java:266) [xmppserver-4.6.4.jar:4.6.4]
157096 at org.jivesoftware.openfire.PresenceRouter.handle(PresenceRouter.java:165) [xmppserver-4.6.4.jar:4.6.4]
157097 at org.jivesoftware.openfire.PresenceRouter.route(PresenceRouter.java:79) [xmppserver-4.6.4.jar:4.6.4]
157098 at org.jivesoftware.openfire.spi.PacketRouterImpl.route(PacketRouterImpl.java:84) [xmppserver-4.6.4.jar:4.6.4]
157099 at org.jivesoftware.openfire.SessionPacketRouter.route(SessionPacketRouter.java:118) [xmppserver-4.6.4.jar:4.6.4]
157100 at org.jivesoftware.openfire.SessionPacketRouter.route(SessionPacketRouter.java:69) [xmppserver-4.6.4.jar:4.6.4]
157101 at org.jivesoftware.openfire.http.HttpSession.sendPendingPackets(HttpSession.java:612) [xmppserver-4.6.4.jar:4.6.4]
157102 at org.jivesoftware.openfire.http.HttpSession$HttpPacketSender.run(HttpSession.java:1329) [xmppserver-4.6.4.jar:4.6.4]
157103 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_144]
157104 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_144]
157105 at java.lang.Thread.run(Thread.java:748) [?:1.8.0_144]

`