This commit adds the newly introduced `@ConditionalOnExposedEndpoint`
conditional annotation to all auto-configured `Endpoint` in Actuator.
With that change, `EndPoint` instances and related infrastructure will
only be created when they are meant to be exposed and used. This will
save CPU and memory resources when Actuator is present.
Closes gh-16093
Prior to this commit, Actuator `Endpoint` instantiations would be
guarded by `@ConditionalOnEnabledEnpoint` condition annotations. This
feature saves resources as disabled endpoints aren't unnecessarily
instantiated.
By default, only `"health"` and `"info"` endpoints are exposed over the
web and all endpoints are exposed over JMX.
As of gh-16090, JMX is now disabled by default. This is an opportunity
to avoid instantiating endpoints if they won't be exposed at all, which
is more likely due to the exposure defaults.
This commit adds a new `@ConditionalOnExposedEndpoint` conditional
annotation that checks the `Environment` for configuration properties
under `"management.endpoints.web.exposure.*"` and
`"management.endpoints.jmx.exposure.*"`. In the case of JMX, an
additional check is perfomed, checking that JMX is enabled first.
The rules implemented in the condition itself are following the ones
described in `ExposeExcludePropertyEndpointFilter`.
See gh-16093
This commit switches the default value for the `spring.jmx.enabled`
configuration property.
JMX is now disabled by default and can be enabled with
`spring.jmx.enabled=true`.
Closes gh-16090
This commit splits the management context configuration for jersey
into two separate configurations depending on if the type is SAME or
CHILD. The configuration for the SAME context should only kick in if
there is no existing ResourceConfig bean.
Fixes gh-15891
This commit also ensures that Jersey-based actuator endpoints are
available before the user has configured a `ResourceConfig` bean
Fixes gh-15625
Fixes gh-15877
Brian Clozel
Andy Wilkinson
Stephane Nicoll
Madhura Bhave
Raheela
Johnny Lim
ayudovin
Phillip Webb
Stephen Doxsee
igor-suhorukov