在 wisp 的场景，执行 thread -n -1 会出错

[hengyunabc]

2022-11-11 11:55:00 [arthas-command-execute] ERROR c.t.a.c.s.system.impl.ProcessImpl -Error during processing the command:
java.lang.NullPointerException: null
        at com.taobao.arthas.core.command.monitor200.ThreadCommand.findThreadInfoById(ThreadCommand.java:225)
        at com.taobao.arthas.core.command.monitor200.ThreadCommand.processTopBusyThreads(ThreadCommand.java:214)
        at com.taobao.arthas.core.command.monitor200.ThreadCommand.process(ThreadCommand.java:122)
        at com.taobao.arthas.core.shell.command.impl.AnnotatedCommandImpl.process(AnnotatedCommandImpl.java:82)
        at com.taobao.arthas.core.shell.command.impl.AnnotatedCommandImpl.access$100(AnnotatedCommandImpl.java:18)
        at com.taobao.arthas.core.shell.command.impl.AnnotatedCommandImpl$ProcessHandler.handle(AnnotatedCommandImpl.java:111)
        at com.taobao.arthas.core.shell.command.impl.AnnotatedCommandImpl$ProcessHandler.handle(AnnotatedCommandImpl.java:108)
        at com.taobao.arthas.core.shell.system.impl.ProcessImpl$CommandProcessTask.run(ProcessImpl.java:385)
        at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:984)
        at java.base/com.alibaba.wisp.engine.WispTask.runOutsideWisp(WispTask.java:262)
        at java.base/com.alibaba.wisp.engine.WispTask.runCommand(WispTask.java:251)
        at java.base/com.alibaba.wisp.engine.WispTask$CacheableCoroutine.run(WispTask.java:223)
        at java.base/java.dyn.CoroutineBase.startInternal(CoroutineBase.java:74)

检查下代码，可能是这个实现有问题java.lang.management.ThreadMXBean.getThreadInfo，返回结果数组里，元素可能有 null 。