com.sun.grizzly.websockets.HandshakeException: Null keys are not allowed. at >> com.sun.grizzly.websockets.SecKey.(SecKey.java:79) at >> com.sun.grizzly.websockets.ServerHandShake.(ServerHandShake.java:68) at >> com.sun.grizzly.websockets.ServerNetworkHandler.handshake(ServerNetworkHandler.java:95) >> at >> com.sun.grizzly.websockets.WebSocketEngine.upgrade(WebSocketEngine.java:136) >> at >> com.sun.grizzly.websockets.WebSocketAsyncFilter.doFilter(WebSocketAsyncFilter.java:52) >> at >> com.sun.grizzly.arp.DefaultAsyncExecutor.invokeFilters(DefaultAsyncExecutor.java:171) >> at >> com.sun.grizzly.arp.DefaultAsyncExecutor.interrupt(DefaultAsyncExecutor.java:143) >>

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Websocket connection not establishing in glasshfish server. How to fix it?

Null keys are not allowed. at >> com.sun.grizzly.websockets.SecKey.(SecKey.java:79) at >> com.sun.grizzly.websockets.ServerHandShake.(ServerHandShake.java:68) at >> com.sun.grizzly.websockets.ServerNetworkHandler.handshake(ServerNetworkHandler.java

com.sun.grizzly.websockets.HandshakeException: Null keys are not allowed.
at >> com.sun.grizzly.websockets.SecKey.(SecKey.java:79)
at >> com.sun.grizzly.websockets.ServerHandShake.(ServerHandShake.java:68)
at >> com.sun.grizzly.websockets.ServerNetworkHandler.handshake(ServerNetworkHandler.java:95) >>
at >> com.sun.grizzly.websockets.WebSocketEngine.upgrade(WebSocketEngine.java:136) >>
at >> com.sun.grizzly.websockets.WebSocketAsyncFilter.doFilter(WebSocketAsyncFilter.java:52) >>
at >> com.sun.grizzly.arp.DefaultAsyncExecutor.invokeFilters(DefaultAsyncExecutor.java:171) >>
at >> com.sun.grizzly.arp.DefaultAsyncExecutor.interrupt(DefaultAsyncExecutor.java:143) >>	at com.sun.grizzly.arp.AsyncProcessorTask.doTask(AsyncProcessorTask.java:94)	at com.sun.grizzly.http.TaskBase.run(TaskBase.java:193)