Hello,
My Jira version is :4.3
UPM version : 2.3
I had tried 2 ways of adding.
1.Throgh upload plugin link
2.Directly putting plugin in installed plugins folder.
I am able to see UPM installed but when tried to search anything following error comes up.
com.icl.saxon.tinytree.TinyElementImpl cannot be cast to com.atlassian.plugins.domain.model.plugin.PluginVersion
Thanks,
Nilophar