In my development environment, I updated to a new servoy_jasperreports version, and wanted to copy that folder to a Servoy server of a customer.
So I stopped the server, made a backup of the old plugins/servoy_jasperreports folder, deleted it and copied the new folder.
Then I started the codesigner to sign all jars in the copied folder.
That did not work (see screenshot).
As I had just minutes ago installed the latest Java 8u131 to that server, could it be that this Java version creates problems with the code signer?