Hello, at work, an application currently uses EHCache.
For contractual reasons, we can no longer use EHCache.
The application works without an L2cache, but is very slow.
What alternate L2Cache implementations are available and a good idea to use in 2023? The application uses Java 11, and cannot be upgraded to 17.
The application inherently uses spring data as it's ORM.
*EDIT*
The l2Cache must not be an external application.