We build with Java 8, 11, and 13 without specifying target
compatibility for the bytecode of the app that's placed in the image.
The built image uses Java 11 and when the app is built with Java 13
it fails to start as the Java 11 VM can't read that Java 13 bytecode.
This commit configures the app that's placed in the image to be built
with target compatibility of 1.8. This allows it to be compiled with
all version of Java with which we build and to also be compatible
with the JVM that's in the image.
See gh-19831
This commit changes uses of ClassLoader.loadClass to Class.forName for
consistency with what was initiated in #19342 and better compatibility
with GraalVM.
Closes gh-19824
Update `LaunchedURLClassLoader` to ensure that the `JarModeLauncher`
is created in the correct classloader.
Prior to this commit the launcher was created by the application
classloader and did not have access to any of the required
`org.springframework` classes.
See gh-19848
This class was mistakenly marked as deprecated in 2.2.0 instead of deprecated
in 2.3.0. This resulted in the class being deleted as part of the 2.3.0
cleanup.
Putting it back in place now with the correct deprecation noted.
Closes gh-19861
Update all dependencies declarations to use the form `scope(reference)`
rather than `scope reference`.
Prior to this commit we declared dependencies without parentheses unless
we were forced to add them due to an `exclude`.
Replace Gradle single quote strings with the double quote form
whenever possible. The change helps to being consistency to the
dependencies section where mostly single quotes were used, but
occasionally double quotes were required due to `${}` references.
The Spring Cloud Connectors project has been deprecated in favor of the
Java CFEnv project. The Boot auto-configuration and starter that support
Connectors were deprecated in Boot 2.2.
This commit removes the Connectors auto-configuration, starter,
and dependency management.
Closes gh-19798
This change ensures that each test in a test suite that shares an
application context gets a unique embedded database, to prevent
inconsistent embedded database state between tests.
Closes gh-16747
Fix a bug in `ExplodedURLClassLoader` and merge the code into the
existing `LaunchedURLClassLoader` class. Also polish a few method
names relating to layer support.
See gh-19848
See gh-19767
Rename the `spring-boot-cloudnativebuildpack` module to
`spring-boot-buildpack-platform` and update the the package
name to `org.springframework.boot.buildpack.platform`.
Closes gh-19851
Change the default `BootstrapMode` for auto-configured `JpaRepositories`
to `BootstrapMode.DEFERRED` to allow the initialization of
`EntityManagerFactory` to be parallelized for increased startup efficiency.
Prior to this change, the default BootstrapMode for all auto-configured
Spring Data repositories was `BootstrapMode.DEFAULT`.
Closes gh-16230
Add a new `spring-boot-layertools` module which provides jarmode support
for working with layers. The module works with both classic fat jars,
as well as layered jars.
Closes gh-19849
Update the `Launcher` class to allow a packaged jar to be launched in
a different mode. The launcher now checks for a `jarmode` property and
attempts to find a `JarMode` implementation using the standard
`spring.factories` mechanism.
Closes gh-19848
