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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 5.1 not supported #7

Open cloudgen opened 7 years ago

cloudgen commented 7 years ago

I've started jupyter and failed with the following message:

java.lang.RuntimeException: [jupyter-kernel] Protocol version 5.1not 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)

fiber-space commented 7 years ago

I haven't reviewed the latest changes in the Jupyter messaging protocol yet but I will soon upgrade the kernel implementation to support 5.1. Fortunately I already cared in advance for versioning and protocol changes, so I expect that this goes quickly.

bdw429s commented 6 years ago

@cloudgen 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?

fiber-space commented 6 years ago

I will examine if the check on the protocol number is actually needed. I might have been overly defensive at the time of the first release. I hope I find some time at the end of next week to close this issue.

Von meinem iPad gesendet

Am 05.10.2018 um 21:16 schrieb Brad Wood notifications@github.com:

@cloudgen 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?

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or mute the thread.

bdw429s commented 6 years ago

@fiber-space Thank you for the reply. To let you know what I'm trying to do-- my goal is to get a CFML (ColdFusion) kernel running. Lucee Server is an open source CFML engine (JVM based) which supports JSR-223 which seems like a great match for what you've done here. I played with your code a bit and just commented out the version check but then I hit several other errors. Null pointer exceptions in the JSON converter and unhandled message types, which may be related to the new protocol version. Also, the classloader issues in Java 9+ which I documented in a new ticket. All of this may be very easy to fix but I'm not familiar with Jupyter at all so I'm not sure where to start,