Thingworx Java Edge SDK connection error

Dear Thingworx Community members,

I am trying write a Thingworx Java Edge SDK example in an OSGi environment. My example is based on the Weather application given in the Thingworx academic resource page.

During the initial connection negotiations I am getting an error "Invalid Protocol Version".  Given below is the log:

8:33:22.481 [NettyClient-NIO-41] DEBUG i.n.h.c.h.w.WebSocket08FrameEncoder - Encoding WebSocket Frame opCode=2 length=60

08:33:22.506 [NettyClient-NIO-41] DEBUG i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame opCode=2

08:33:22.507 [NettyClient-NIO-41] DEBUG i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame length=17

08:33:22.508 [NettyClient-NIO-41] ERROR c.t.c.c.c.n.ThingworxClientConnectionHandler - WebSocket error: Invalid Protocol Version [71], closing connection!

08:33:23.729 [Client-EndpointMonitor-1] DEBUG c.t.c.c.e.m.CommunicationEndpointMonitorTask - CommunicationEndpoint Monitor - checking for disconnected endpoints

08:33:23.730 [Client-EndpointMonitor-1] INFO  c.t.c.c.e.m.CommunicationEndpointMonitorTask - Endpoint not connected [name: Am2302Thing, id: 0]. Attempting [re]connect...

08:33:23.730 [Client-EndpointMonitor-1] DEBUG c.t.c.c.e.ClientCommunicationEndpoint - Clearing endpoint authentication data [id: 0]

08:33:23.731 [Client-EndpointMonitor-1] INFO  c.t.c.c.e.ClientCommunicationEndpoint - Needed to refill connections on client endpoint [id: 0] : [active: 0, max: 1]

08:33:24.746 [Client-EndpointMonitor-1] INFO  c.t.c.c.c.n.NettyClientConnectionFactory - forcing underlying tcp channel closed [is open: true, is active: false]

08:33:24.747 [Client-EndpointMonitor-1] ERROR c.t.c.c.e.ClientCommunicationEndpoint - Refilling connections on [endpoint 0, uri: ws://192.168.0.12:8080/Thingworx/WS] failed : timeout waiting for websocket handshake to complete

Does anybody have an idea what’s causing this error?

Any help would be appreciated.

Best Regards,

Jishnu