When SQL is generated in jOOQ, there are too RenderContext objects being created, instead of a single one. An additional DataMap is created with DefaultDSLContext, as the Configuration's DataMap isn't passed on to the render context.

This excessive object creation accounts for 3% - 5% of the time spent in a high throughput benchmark and should be improved.

This is a finding from analyses made after a third-party benchmark comparing jOOQ with JDBC, Hibernate, Spring Data:
https://github.com/nithril/sandbox-query-benchmark-jooq-hibernate-jdbc