I am using jboss eap 6.2, java 1.7. I have implemented HttpAsyncClient by following documentation. (https://hc.apache.org/httpcomponents-asyncclie)nt-4.1.x/httpasyncclient/examples/org/apache/http/examples/nio/client/AsyncClientHttpExchangeFutureCallback.java) For this i have used httpclient -4.4.1
httpcore - 4.4.6
httpclient-osgi - 4.3
httpcore-nio - 4.4.3
httpasyncclient - 4.1.3
While executing httpClient.execute() method its throwing following exception.
Exception in thread "pool-13-thread-1" java.lang.NoSuchMethodError: org.apache.http.util.Asserts.check(ZLjava/lang/String;Ljava/lang/Object;)V

I tried the solution given in following thread.(I fixed this using slot. I created a new directory on httpcomponents module named "4.4" and added new jars and module.xml. I update the standalone.xml:)
https://developer.jboss.org/thread/267622

Even i replaced default jars under modules\system\layers\base\org\apache\httpcomponents\main and put 4.4.1 jars.

I tired editing module.xml in modules\system\layers\base\org\jboss\resteasy\resteasy-jaxrs\main

But still i am facing the same issue.
Please help me to resolve this.

Thanks,
Ananthi.