Cannot invoke "java.util.concurrent.CompletableFuture.whenComplete(java.util.function.BiConsumer)" because the return value of "com.baidu.bifromq.basecluster.messenger.IMessenger.send(com.baidu.bifromq.basecluster.proto.ClusterMessage, java.net.InetSocketAddress, boolean)" is null

Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@67d09f03[Not completed, task = java.util.concurrent.Executors$RunnableAdapter@72c4a00a[Wrapped task = com.baidu.bifromq.basekv.store.util.AsyncRunner$$Lambda$305/0x00007fb924496b10@6f197ee8]] rejected from java.util.concurrent.ScheduledThreadPoolExecutor@5fd006b5[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 28]

Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@50d4fe4c[Not completed, task = java.util.concurrent.Executors$RunnableAdapter@34688d0[Wrapped task = com.baidu.bifromq.basekv.store.util.AsyncRunner$$Lambda$305/0x00007fb924496b10@6c720e0d]] rejected from java.util.concurrent.ScheduledThreadPoolExecutor@71c0010d[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 35]

Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@61b886a5[Not completed, task = java.util.concurrent.Executors$RunnableAdapter@27845b81[Wrapped task = com.baidu.bifromq.basekv.store.util.AsyncRunner$$Lambda$305/0x00007fb924496b10@3a8fbaf4]] rejected from java.util.concurrent.ScheduledThreadPoolExecutor@10efa657[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 26]

Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@19f7b8d9[Not completed, task = java.util.concurrent.Executors$RunnableAdapter@23b2c965[Wrapped task = com.baidu.bifromq.basekv.store.util.AsyncRunner$$Lambda$305/0x00007fb924496b10@3e0fda0f]] rejected from java.util.concurrent.ScheduledThreadPoolExecutor@7534bb03[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 11652]

Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@1beb9a09[Not completed, task = java.util.concurrent.Executors$RunnableAdapter@6753c08a[Wrapped task = com.baidu.bifromq.basekv.store.util.AsyncRunner$$Lambda$305/0x00007fb924496b10@57fafc70]] rejected from java.util.concurrent.ScheduledThreadPoolExecutor@74e1f43f[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 44]

Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@24313a79[Not completed, task = java.util.concurrent.Executors$RunnableAdapter@30150b6c[Wrapped task = com.baidu.bifromq.basekv.store.util.AsyncRunner$$Lambda$305/0x00007fb924496b10@1ecd32e3]] rejected from java.util.concurrent.ScheduledThreadPoolExecutor@47f4cbd7[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 30]

Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@4b147cc[Not completed, task = java.util.concurrent.Executors$RunnableAdapter@147dbc1c[Wrapped task = com.baidu.bifromq.basekv.store.util.AsyncRunner$$Lambda$305/0x00007fb924496b10@1b75b785]] rejected from java.util.concurrent.ScheduledThreadPoolExecutor@5df0e10b[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 1876]

Task io.micrometer.core.instrument.internal.TimedRunnable@271a3ef0 rejected from java.util.concurrent.ThreadPoolExecutor@43b891d1[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 116]

Task io.micrometer.core.instrument.internal.TimedRunnable@7f9822a6 rejected from java.util.concurrent.ThreadPoolExecutor@765d8664[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 251]