We are implementing a custom cipher and as part of that we have developed a custom jar, which includes some dependent jars as well.

Custom jar/ dependent jars/ custom cipher jar - all jars imported  and verified also in pr_engineclasses DB table.

So when we are executing the custom jar java code from Pega activity for testing purpose then it's working fine and returning required values.

Then here comes a problem when we update the custom cipher class in Data encryption and restart the server, so during the process of server restarting, custom cipher class is executing and then it's not able to find that properties file inside our dependent jar and execution of class is failed and it's not returning required value.

Please suggest how can we resolve the issue.