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Spring Framework build
This folder contains the custom plugins and conventions for the Spring Framework build.
They are declared in the build.gradle file in this folder.
Build Conventions
Compiler conventions
The org.springframework.build.compile applies the Java compiler conventions to the build.
By default, the build is compiling sources with the 1.8 source and target compatibility.
You can test a different source compatibility version on the CLI with a project property like:
./gradlew test -PjavaSourceVersion=11
Build Plugins
Optional dependencies
The org.springframework.build.optional-dependencies plugin creates a new optional
Gradle configuration - it adds the dependencies to the project's compile and runtime classpath
but doesn't affect the classpath of dependent projects.
This plugin does not provide a provided configuration, as the native compileOnly and testCompileOnly
configurations are preferred.
Test sources
The org.springframework.build.test-sources updates testCompile dependencies to include
the test source sets of project() dependencies. This plugin is used in the Spring Framework build
to share test utilities and fixtures amongst modules.
API Diff
This plugin uses the Gradle JApiCmp plugin to generate API Diff reports for each Spring Framework module. This plugin is applied once on the root project and create tasks in each framework module. Unlike previous versions of this part of the build, there is no need for checking out a specific tag. The plugin will fetch the JARs we want to compare the current working version with. You can generate the reports for all modules or a single module:
./gradlew apiDiff -PbaselineVersion=5.1.0.RELEASE
./gradlew :spring-core:apiDiff -PbaselineVersion=5.1.0.RELEASE
The reports are located under build/reports/api-diff/$OLDVERSION_to_$NEWVERSION/.