Set context ClassLoader to plugin ClassLoader for correct class loading operations #7725
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: ruibaby The full list of commands accepted by this bot can be found here. The pull request process is described here
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#### What type of PR is this? /kind improvement /area plugin /milestone 2.21.x #### What this PR does / why we need it: This PR restores context ClassLoader mangement during plugin lifecycle to prevent resource leak. Meanwhile, it also fixes Class initialization error when starting plugins. Superseds #7725 #### Does this PR introduce a user-facing change? ```release-note None ```
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What type of PR is this?
/kind bug
/area plugin
/milestone 2.21.x
What this PR does / why we need it:
This PR fixes the problem that loading resources from class path during static initialization doesn't work.
Does this PR introduce a user-facing change?