Question

    Exception in thread "Thread-0" java.lang.NullPointerException
 at org.apache.http.impl.nio.reactor.AbstractIOReactor.closeActiveChannels(AbstractIOReactor.java:532)
 at org.apache.http.impl.nio.reactor.AbstractIOReactor.hardShutdown(AbstractIOReactor.java:564)
 at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.doShutdown(AbstractMultiworkerIOReactor.java:411)
 at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.execute(AbstractMultiworkerIOReactor.java:340)
 at com.***.clawer.Clawer$1.run(Clawer.java:81)
 at java.lang.Thread.run(Unknown Source)
    Exception in thread "Thread-1" java.lang.IllegalStateException: I/O reactor has been shut down
 at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.connect(DefaultConnectingIOReactor.java:190)
 at com.***.clawer.Run.run(Run.java:29)

Answer 1

您使用的NIO Reactor在您尝试使用它时已关闭（连接到它）

请参阅：

java.lang.IllegalStateException: I/O reactor has been shut down

Answer 2

我查看了代码，我认为NPE正在发生，因为getSession()返回null。

Java中Httpcore nio的奇怪例外

2 个答案: