10:57:21,513 ERROR (Client I/O-2) [org.xnio.listener] <ChannelListeners.java:94> XNIO001007: A channel event listener threw an exception: java.lang.NullPointerException
    at io.undertow.conduits.FixedLengthStreamSourceConduit.read(FixedLengthStreamSourceConduit.java:260)
    at org.xnio.conduits.ConduitStreamSourceChannel.read(ConduitStreamSourceChannel.java:127)
    at io.undertow.channels.DetachableStreamSourceChannel.read(DetachableStreamSourceChannel.java:209)
    at io.undertow.util.StringReadChannelListener.handleEvent(StringReadChannelListener.java:86)
    at io.undertow.util.StringReadChannelListener.handleEvent(StringReadChannelListener.java:40)
    at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
    at io.undertow.channels.DetachableStreamSourceChannel$SetterDelegatingListener.handleEvent(DetachableStreamSourceChannel.java:231)
    at io.undertow.channels.DetachableStreamSourceChannel$SetterDelegatingListener.handleEvent(DetachableStreamSourceChannel.java:218)
    at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
    at io.undertow.conduits.ReadTimeoutStreamSourceConduit$1.run(ReadTimeoutStreamSourceConduit.java:81)
    at org.xnio.nio.WorkerThread.safeRun(WorkerThread.java:612)
    at org.xnio.nio.WorkerThread.run(WorkerThread.java:479)