When I submit a POST request with the body type as the parameter, an exception will be generated

java.lang.AssertionError at com.koushikdutta.async.future.SimpleCancellable.setComplete(SimpleCancellable.java:25) at com.koushikdutta.async.future.SimpleFuture.setComplete(SimpleFuture.java:134) at com.koushikdutta.async.future.SimpleFuture.setComplete(SimpleFuture.java:124) at com.koushikdutta.async.future.TransformFuture.error(TransformFuture.java:22) at com.koushikdutta.async.future.TransformFuture.onCompleted(TransformFuture.java:17) at com.koushikdutta.async.future.SimpleFuture.handleCallbackUnlocked(SimpleFuture.java:107) at com.koushikdutta.async.future.SimpleFuture.setComplete(SimpleFuture.java:141) at com.koushikdutta.async.future.SimpleFuture.setComplete(SimpleFuture.java:128) at com.koushikdutta.async.parser.ByteBufferListParser$3.onCompleted(ByteBufferListParser.java:43) at com.koushikdutta.async.DataEmitterBase.report(DataEmitterBase.java:16) at com.koushikdutta.async.http.filter.ContentLengthFilter.report(ContentLengthFilter.java:16) at com.koushikdutta.async.http.filter.ContentLengthFilter.onDataAvailable(ContentLengthFilter.java:39) at com.koushikdutta.async.Util.emitAllData(Util.java:23) at com.koushikdutta.async.AsyncNetworkSocket.onReadable(AsyncNetworkSocket.java:152) at com.koushikdutta.async.AsyncServer.runLoop(AsyncServer.java:821) at com.koushikdutta.async.AsyncServer.run(AsyncServer.java:658) at com.koushikdutta.async.AsyncServer.access$800(AsyncServer.java:44) at com.koushikdutta.async.AsyncServer$14.run(AsyncServer.java:600)