Previously working Plugins no longer show real names in UPM, only JAR files

We just converted a (working) Confluence 3.4.1 instance from a Latin1 DB to a UTF-8 DB. All our local user macros are working fine, but almost all user-installed plugins are not.

In the UPM the plugin names no longer show up, just the JAR files. According to UPM they're enabled fine, but they don't work and the Audit Trail shows just the Jar name instead of the expected name:

Enabled plugin 1315023428234plugin.5174691748504952382.adaptavist-plugin-pageInfo-1.3.6.jar (1315023428234plugin.5174691748504952382.adaptavist-plugin-pageInfo-1.3.6.jar)

This applies to all data about the plugins - they don't show publisher name, config options, etc. So I'm not sure what settings got munged in the DB conversion process that I need to double-check/fix/hit with a hammer.

Any pointers?

Thanks,

-Bill

2 answers

Some more information...

While the plugins that Bill mentions above appear enabled, there are no modules installed within those plugins.

Also, this is only applying to the user installed/managed plugins. The system (Atlassian) plugins appear fine.

Lastly, if you manually try to reinstall one of the plugins, the plug installs, however the entry with the jar filename remains in the list of user installed plugins.

Please check if your database has the max allowed packet set with a proper size for the UPM plugins:

https://confluence.atlassian.com/display/CONFKB/Exceeds+Max+Allowed+Packet+for+MySQL

Cheers!

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