The example tests werent working for websockets.
setting the buffer size fixed this issue:
public WebsocketClientEndpoint(URI endpointURI, Bitvavo bitv) {
try {
bitvavo = bitv;
WebSocketContainer container = ContainerProvider.getWebSocketContainer();
container.setDefaultMaxBinaryMessageBufferSize(1024*1024);
container.setDefaultMaxTextMessageBufferSize(1024*1024);
container.connectToServer(this, endpointURI);
} catch (Exception e) {
e.printStackTrace();
bitvavo.errorToConsole("Caught exception in instantiating websocket." + e);
this.reconnectTimer = 100;
retryConnecting(endpointURI);
}
}