toDerInputStream rejects tag type 123

Question

I am trying to run the Get started with Datastore example at https://developers.google.com/datastore/docs/getstarted/start_java/ trying it both from the command line and from Eclipse.

In both environments, it is not able to connect to datastore and gives an I/O error message 'toDerInputStream rejects tag type 123'.

Looking around, this may be because the private key file is in json format and perhaps it should the p12 - other than that the error message draws a blank.

Could anyone point to something that would help me past this?

Answer 1

You need to use PKCS#12 format, as you said, p12. There's a few other people with similar errors (although they're trying to accomplish different things). I hope this helps, let us know if it resolves the issue.

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toDerInputSteam rejects tag 66