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fiber-space / jupyter-kernel-jsr223

A JSR223 compliant Jupyter kernel implementation in Java
Apache License 2.0
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Protocol version 5.2 not supported #11

Closed debjan closed 6 years ago

debjan commented 6 years ago

I get this error:

[jupyter-kernel.jar] python kernel started.
Exception in thread "Thread-0" java.lang.RuntimeException: [jupyter-kernel] Protocol version 5.2not supported by this kernel
        at org.jupyterkernel.kernel.MessageObject.checkAllowedProtocolVersion(MessageObject.java:106)
        at org.jupyterkernel.kernel.MessageObject.read(MessageObject.java:176)
        at org.jupyterkernel.kernel.Kernel.dispatch(Kernel.java:136)
        at org.jupyterkernel.kernel.Session.run(Session.java:239)
bdw429s commented 6 years ago

@debjan Did you get this to work? I'm trying to use this kernel now and I've getting the same error, but just for protocol version 5.3.

@fiber-space any chance of getting this fixed?

debjan commented 6 years ago

unfortunately not, thou I didn't try too hard, as this is not the only kernel that can't cope with jupyter dev

bdw429s commented 6 years ago

Thanks for the reply @debjan . I did try bypassing the version check, but then then ran into other issues with the communication. It seems the newer versions of the protocol do need explicit support added.

fiber-space commented 6 years ago

Protocol version 5.3 is now supported. Message structures have changed very little but Jupyter sends now a comm_info_request at startup which wasn't handled yet. I also removed a dependency on javax/xml/bind/DatatypeConverter which caused some trouble in Java 9.

bdw429s commented 6 years ago

Thanks for your work on this @fiber-space , I'll give this another shot and try to load up Lucee Server.

bdw429s commented 6 years ago

Hi @fiber-space , it's still not working for me on the latest version:

Exception in thread "Thread-0" java.lang.NullPointerException
        at org.jupyterkernel.json.messages.T_JSON.toJSON(T_JSON.java:149)
        at org.jupyterkernel.json.messages.T_JSON.toJSON(T_JSON.java:149)
        at org.jupyterkernel.kernel.MessageObject.send(MessageObject.java:192)
        at org.jupyterkernel.kernel.Kernel.dispatch(Kernel.java:173)
        at org.jupyterkernel.kernel.Session.run(Session.java:239)
bdw429s commented 6 years ago

I created a new issue here: https://github.com/fiber-space/jupyter-kernel-jsr223/issues/15