This commit adds a new `StartupStep` interface and its factory
`ApplicationStartup`. Such steps are created, tagged with metadata and
thir execution time can be recorded - in order to collect metrics about
the application startup.
The default implementation is a "no-op" variant and has no side-effect.
Other implementations can record and collect events in a dedicated
metrics system or profiling tools. We provide here an implementation for
recording and storing steps with Java Flight Recorder.
This commit also instruments the Spring application context to gather
metrics about various phases of the application context, such as:
* context refresh phase
* bean definition registry post-processing
* bean factory post-processing
* beans instantiation and post-processing
Third part libraries involved in the Spring application context can
reuse the same infrastructure to record similar metrics.
Closes gh-24878
Because of security and broader industry support, support for several
remoting technologies is now deprecated and scheduled for removal in
Spring Framework 6.0.
This commit deprecates the following remoting technologies:
* HTTPInvoker
* RMI
* Hessian
* JMS remoting
Other remoting technologies like EJB or JAXWS might be deprecated in the
future depending on industry support.
Closes gh-25379
This commit removes load time weaving, CGLIB and Objenesis support
from native images.
GraalDetector has been removed for now because of
https://github.com/oracle/graal/issues/2594. It should be reintroduced
when this bug will be fixed with NativeImageDetector class name.
Closes gh-25179
This commit introduces a spring.spel.ignore system property
which when set to true avoid initializing SpEL infrastructure.
A typical use case is optimizing GraalVM native image footprint
for applications not using SpEL. In order to be effective, those
classes should be initialized at build time:
- org.springframework.context.support.AbstractApplicationContext
- org.springframework.core.SpringProperties
- org.springframework.context.event.EventListenerMethodProcessor
Closes gh-25153
Brian Clozel
Juergen Hoeller
Sébastien Deleuze
Sam Brannen
XenoAmess
陈其苗
Сергей Цыпанов
Yoo In Keun
Juergen Hoeller
Rossen Stoyanchev