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In version 8 red hat introduced some major overhauls to their security and cryptographic components. (Documented Here) Most notably with relevance to earlier versions of Datastage (which require TLSv1) TLSv1 is disabled by default. If you are encountering either of the following TLS Errors.

.ssl.SSLHandshakeException: Server chose TLSv1, but that protocol version is not enabled or not supported by the client.

Or

javax.net.ssl.SSLHandshakeException: The server selected protocol version TLS10 is not accepted by client preferences [TLS12]

Run the following command:

update-crypto-policies --set LEGACY

Now restart the server workbench is running on and see if this command has fixed your issue.

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