Prior to this commit, the Spring Framework projects could not be
imported into Eclipse IDE when using JDK 17 to build the projects.
The primary obstacle is the fact that Eclipse enforces a strict
"no split packages between the unnamed module and a system module" rule
when building with a "modular JDK" (such as JDK 17).
Resources:
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=536928
- https://bugs.openjdk.java.net/browse/JDK-8215739
- http://mail.openjdk.java.net/pipermail/jigsaw-dev/2018-December/014077.html
- https://stackoverflow.com/questions/51094274/eclipse-cant-find-xml-related-classes-after-switching-build-path-to-jdk-10/53824670#53824670
Since the bug (JDK-8215739) has not been fixed in OpenJDK, the strict
"no split packages" rule does not apply to the Java compiler used in
Spring Framework's Gradle build or the compiler in IntelliJ IDEA. Hence,
this issue only arrises when building the framework in Eclipse IDE.
This commit addresses this issue in the following affected projects.
- spring-oxm: removal of the dependency on XPP3 which publishes
javax.xml.namespace.QName as part of the JAR. The QName type is
also published by the java.xml JDK 17 system module. To make the
tests pass, we have switched to using the DomDriver instead of the
XppDriver in our XStream tests.
- spring-test: HtmlUnit has a transitive dependency on xml-apis which
publishes several packages also published by java.xml JDK 17 system
module. Thus, we have explicitly excluded the transitive dependency
on xml-apis for our `optional` configuration.
See gh-27407
This commit fixes various issues with the configuration of the Gradle
Java toolchain in the build.
First, the configuration of build properties is fixed in the CI pipeline
because it wasn't properly checked.
The JMH plugin is also upgraded and we now configure its toolchain
support.
This commit also rewrites the XJC tasks in the spring-oxm module,
leveraging a Gradle plugin that creates actual compile tasks we can
configure.
See gh-25787
This commit adds support for the following two JVM system properties
that control the Gradle build for alternative JDKs (i.e., a JDK other
than the one used to launch the Gradle process).
- customJavaHome: absolute path to the alternate JDK installation to
use to compile Java code and execute tests. Setting this system
property causes Groovy 3.0 RC3 to be used instead of 2.5.x. This
system property is also used in spring-oxm.gradle to determine
whether JiBX is supported.
- customJavaSourceVersion: Java version supplied to the `--release`
command line flag to control the Java source and target compatibility
version. Supported versions include 9 or higher. Do not set this
system property if Java 8 should be used.
Examples:
./gradlew -DcustomJavaHome=/opt/java/jdk-14 test
./gradlew --no-build-cache -DcustomJavaHome=/opt/java/jdk-14 test
./gradlew -DcustomJavaHome=/opt/java/jdk-14 -DcustomJavaSourceVersion=14 test
See gh-24474
Previously, the genJaxb task's input files were compared using
absolute paths. This would result in a cache miss for two builds
with identical files contents and different root directories.
This commit updates the path sensitivity of the input to be relative
to the build's root directory, thereby allowing caching to work
irrespective of the source checkout location.
Closes gh-23704
Prior to this commit, the Spring Framework build would partially use the
dependency management plugin to import and enforce BOMs.
This commit applies the dependency management plugin to all Java
projects and regroups all version management declaration in the root
`build.gradle` file (versions and exclusions).
Some versions are overridden in specific modules for
backwards-compatibility reasons or extended support.
This commit also adds the Gradle versions plugin that checks for
dependency upgrades in artifact repositories and produces a report; you
can use the following:
./gradlew dependencyUpdates
As of Gradle 4.0, project SourceSets can have multiple output
directories (one per programming language).
This commit fixes warnings that are logged when a single output dir
is considered by tasks.
Issue: SPR-15885
The main `build.gradle` file contains now only the common build
infrastructure; all module-specific build configurations have
been moved to their own build file.
Issue: SPR-15885
Juergen Hoeller
Sam Brannen
Brian Clozel
Sam Brannen
Juergen Hoeller
Andy Wilkinson
Brian Clozel
Phillip Webb
Arjen Poutsma