Hi Rabi,I am facing the similar issue and what i did is i made a change in the parameter of heartbeat of NIO-amf-Streaming. Once i reduced the heartbeat parameter from 10000 to 1000 i am not facing any hang. Please try this and let me know if that works.<channel-definition id="my-nio-amf-stream" cla...

Can you please provide the complete exception so that i can help you out with this.

Are the classes which are defined in your app public, if not set the classes declaration to public and see if this resolves the issue.