Previously, unlike the application plugin's run task, our bootRun task
ignored the project's Java toolchain. This meant that the application
was run on a JVM with the same Java version as the one being used by
Gradle itself. This could result in a failure if the application
required a more modern JVM.
This commit updates the plugin to configure the bootRun task's
JavaLauncher convention to be one derived from the project's Java
toolchain. Toolchain support was introduced in Gradle 6.7 so this is
only done when using Gradle 6.7 and later.
Fixes gh-24517
Previously, bootRun assumed that the Java version of the JVM that would
run the application would be the same as the Java version of the JVM
that is running the build. This assumption does not hold true when
Gradle's toolchain support is used to configure tasks that fork a new
JVM to use a version other than that being used by Gradle itself.
This commit updates the BootRun task to query the JavaLauncher property
when determining the version of Java on which the application will be
run. Toolchain support and the JavaLauncher property are new in Gradle
6.7. To support earlier versions of Gradle, NoSuchMethodError is caught
we continue as if no JavaLauncher has been configured and use the local
JVM's Java version.
Fixes gh-24512
Prior to this commit, running the bootBuildImage Gradle task on a
project configured for war packaging would result in a jar file being
built and used in the image instead of the war file. With this commit
an error will be thrown from the plugin in this case.
Fixes gh-24521
This commit qualifies examples of configuring the CNB builder to clarify
that the examples apply to use of the default Paketo builder, and adds links
to the official Paketo docs for more details.
Fixes gh-19967
This commit adds a check to the support code for the Gradle plugin
bootBuildImage task to ensure that the jar file that will be passed
to a builder is readable and has a valid directory. This prevents a
situation where the jar file cannot be read because it is prepended
with a launch script, and the builder does not receive any files to
process.
Notes have also been added to the Gradle plugin documentation to warn
against using a bootJar launchScript configuration and bootBuildImage
together, as well as caveats about launchScript that match the Maven
plugin documentation.
Fixes gh-22223
Prior to this commit, an image name or run image name derived from
the project name or provided by the user would be passed to the CNB
builder without validation by the Maven plugin build-image goal or
Gradle plugin bootBuildImage task. This could lead to error messages
from the plugins that are difficult to understand and diagnose.
This commit makes parsing of the image names more strict, based on
the grammar implemented by the Docker go library. This provides
validation of the image names before passing them to the builder,
with a more descriptive error message when parsing and validation
fails.
Fixes gh-21495
This commit adds a runImage property to the Maven plugin build-image
goal and the Gradle bootBuildImage task. The property allows the user
to override the run image reference provided in the builder metadata
with an alternate run image. The runImage property can be specified
in the build file or on the command line.
Fixes gh-21534
Andy Wilkinson
Robert Smith
Phillip Webb
jongmin92
Scott Frederick
Andy Wilkinson
Sebastiaan Fernandez
Stephane Nicoll
Jean-Baptiste Nizet
Madhura Bhave