Summary

Stop running annotation processors found on the class path by default. That behavior can still be enabled by using one or more separate options.

Problem

Starting in JDK 21, the message printed by JDK-8310061 is:

Annotation processing is enabled because one or more processors were found
on the class path. A future release of javac may disable annotation processing
unless at least one processor is specified by name (-processor), or a search
path is specified (--processor-path, --processor-module-path), or annotation
processing is enabled explicitly (-proc:only, -proc:full).
Use -Xlint:-options to suppress this message.
Use -proc:none to disable annotation processing.

This CSR is to implement the future disabling described in the message above.

Solution

Without other configuration options, do not search the class path for annotation processors.

Specification

No specification changes.