Another example of how to reproduce error but in XWiki Extension Manager, install old OIDC version 2.20.3 and try to upgrade it to latest version, the upgrade process will fail and log will contain these
Failed to get fields for class [org.xwiki.contrib.oidc.consent.internal.store.OIDCConsentStore] because the class [org/xwiki/contrib/oidc/OIDCException] couldn't be found in the ClassLoader.
Failed to get fields for class [org.xwiki.contrib.oidc.internal.DefaultOAuth2TokenStore] because the class [org/xwiki/contrib/oidc/OAuth2Exception] couldn't be found in the ClassLoader.
Extension [org.xwiki.contrib.oidc:oidc-authenticator/2.20.3] cannot be initialized because its dependency ([org.xwiki.contrib.oidc:oauth2-store-2.20.3]) could not.
Once again, XWiki restart resolves the issue.
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