spring-framework

Spring Framework

Tree: c86e678788

Brian Clozel c86e678788 Add RuntimeHintsAgent Java agent With the introduction of `RuntimeHints`, we can now contribute reflection, resources and proxies hints that describe the expected runtime behavior of the application. While this can be verified at runtime with smoke tests, managing such tests and compiling to native there is not very efficient. This commit introduces the new `RuntimeHintsAgent`, a Java agent that instruments JDK methods related to `RuntimeHints`. It is different from the GraalVM agent, which aims at collecting all the required hints for the runtime behavior of an application and dump those in the expected format. Here, the `RuntimeHintsAgent` can collect the related invocations only for a delimited scope (typically, a lambda within a test) and later check those against a `RuntimeHints` instance. In the case of testing `RuntimeHintsRegistrar` implementations, the process is reversed: instead of manually checking for registered hints in a `RuntimeHints` instance, tests should exercise the use cases and then check that the recorded behavior is in line with the prepared hints. This first commit adds the agent infrastructure that collects the invocations for all relevant JDK methods. See gh-27981	4 years ago
..
main/java/org/springframework	Add RuntimeHintsAgent Java agent	4 years ago
test/java	Add RuntimeHintsAgent Java agent	4 years ago

Brian Clozel c86e678788 Add RuntimeHintsAgent Java agent

With the introduction of `RuntimeHints`, we can now contribute
reflection, resources and proxies hints that describe the expected
runtime behavior of the application. While this can be verified at
runtime with smoke tests, managing such tests and compiling to native
there is not very efficient.

This commit introduces the new `RuntimeHintsAgent`, a Java agent that
instruments JDK methods related to `RuntimeHints`.
It is different from the GraalVM agent, which aims at collecting all the
required hints for the runtime behavior of an application and dump those
in the expected format.
Here, the `RuntimeHintsAgent` can collect the related invocations only
for a delimited scope (typically, a lambda within a test) and later
check those against a `RuntimeHints` instance. In the case of testing
`RuntimeHintsRegistrar` implementations, the process is reversed:
instead of manually checking for registered hints in a `RuntimeHints`
instance, tests should exercise the use cases and then check that the
recorded behavior is in line with the prepared hints.

This first commit adds the agent infrastructure that collects the
invocations for all relevant JDK methods.

See gh-27981

4 years ago

main/java/org/springframework

Add RuntimeHintsAgent Java agent

4 years ago

test/java

Add RuntimeHintsAgent Java agent

4 years ago