Wildfly Undertow request failed HttpServerExchange on Webservice

Question

I am trying to reach a webservice running on my Wildfly instance. The webservice is annotated as Post and accepts JSON. When I try to call the service, my Wildfly throws an Nullpointerexception.

The actual stack trace looks like this:

15:23:40,324 ERROR [io.undertow.request] (default task-1) Undertow request  failed HttpServerExchange{ POST <path to my service>}: java.lang.NullPointerException
at io.undertow.servlet.spec.ServletInputStreamImpl.readIntoBuffer(ServletInputStreamImpl.java:171)
at io.undertow.servlet.spec.ServletInputStreamImpl.close(ServletInputStreamImpl.java:245)
at io.undertow.servlet.spec.HttpServletRequestImpl.closeAndDrainRequest(HttpServletRequestImpl.java:602)
at io.undertow.servlet.core.ServletBlockingHttpExchange.close(ServletBlockingHttpExchange.java:87)
at io.undertow.server.HttpServerExchange.endExchange(HttpServerExchange.java:1444)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:213)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:759)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_75]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_75]
at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_75]

I don't really understand what evoked a Nullpointerexception as I am not very familiar with Wildfly development.

Solution

It seems to be WildFly defect: UNDERTOW-367: NullPointerException when POST method has no ordinary parameters