This issue reproduces on XWiki setup with PostgreSQL 13 and Tomcat 9.0.45.
How to reproduce:
- create a page in syntax XWiki 2.1 (default)
- put the following content in it [[email@example.com>>url:mailto:firstname.lastname@example.org]]
Upon rendering this page, there will be lots and lots of logs in the console, like this:
as well as similar failures to create indexes or similar failures to alter already created tables.
The stack trace is something like this:
which shows that their source is the verification of the existence of the "page" that is the destination of the link.