Error trying to execute SimpleEchoClient

[antolinos95]

Hi!
I get the next exception when I execute SimpleEchoClient or RosTest:

Exception in thread "main" java.lang.NullPointerException
at org.eclipse.jetty.websocket.common.extensions.AbstractExtension.getName(AbstractExtension.java:90)
at org.eclipse.jetty.websocket.api.extensions.ExtensionFactory.(ExtensionFactory.java:37)
at org.eclipse.jetty.websocket.common.extensions.WebSocketExtensionFactory.(WebSocketExtensionFactory.java:40)
at org.eclipse.jetty.websocket.client.WebSocketClient.(WebSocketClient.java:85)
at org.eclipse.jetty.websocket.client.WebSocketClient.(WebSocketClient.java:78)
at tests.SimpleEchoClient.main(SimpleEchoClient.java:18)

Thank you!

[stefie10]

I'm going to guess it's something to do with Jetty not having all the
libraries that it needs... It's trying to load an extension and
failing. Is Jetty installed correctly? Your classpath set up? Have
you tried looking on Jetty forums?

On 10/26/2016 04:41 AM, antolinos95 wrote:

Hi!
I get the next exception when I execute SimpleEchoClient or RosTest:

Exception in thread "main" java.lang.NullPointerException
at
org.eclipse.jetty.websocket.common.extensions.AbstractExtension.getName(AbstractExtension.java:90)
at
org.eclipse.jetty.websocket.api.extensions.ExtensionFactory.(ExtensionFactory.java:37)
at
org.eclipse.jetty.websocket.common.extensions.WebSocketExtensionFactory.(WebSocketExtensionFactory.java:40)
at
org.eclipse.jetty.websocket.client.WebSocketClient.(WebSocketClient.java:85)
at
org.eclipse.jetty.websocket.client.WebSocketClient.(WebSocketClient.java:78)
at tests.SimpleEchoClient.main(SimpleEchoClient.java:18)

Thank you!

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[antolinos95]

It was a weird conflict between different versions of Jetty, now it's solved.
Thank you! 😄