sjvanrossum commented on code in PR #34915:
URL: https://github.com/apache/beam/pull/34915#discussion_r2093213865
##########
buildSrc/src/main/groovy/org/apache/beam/gradle/BeamModulePlugin.groovy:
##########
@@ -1845,21 +1674,7 @@ class BeamModulePlugin implements Plugin<Project> {
project.ext.includeInJavaBom = configuration.publish
project.ext.exportJavadoc = configuration.exportJavadoc
- boolean publishEnabledByCommand = isRelease(project) ||
project.hasProperty('publishing')
- if (forkJavaVersion == '') {
- // project needs newer version and not served.
- // If not publishing ,disable the project. Otherwise, fail the build
- def msg = "project ${project.name} needs newer Java version to
compile. Consider set -Pjava${project.javaVersion}Home"
- if (publishEnabledByCommand) {
- throw new GradleException("Publish enabled but " + msg + ".")
Review Comment:
I added a commit to select the minimum language version when the requested
language version is incompatible. When a suitable toolchain can't be discovered
this will still result in a build failure.
```
> Configure project :sdks:java:container:agent
Requested a toolchain for language version 11 because a toolchain for
language version 8 is incompatible with the minimum supported language version.
FAILURE: Build failed with an exception.
* What went wrong:
Could not determine the dependencies of task
':sdks:java:container:agent:compileJava'.
> Failed to query the value of extension 'errorprone' property 'enabled'.
> Failed to calculate the value of task
':sdks:java:container:agent:compileJava' property 'javaCompiler'.
> No matching toolchains found for requested specification:
{languageVersion=11, vendor=any, implementation=vendor-specific} for MAC_OS on
aarch64.
> No locally installed toolchains match and toolchain
auto-provisioning is not enabled.
* Try:
> Learn more about toolchain auto-detection at
https://docs.gradle.org/8.4/userguide/toolchains.html#sec:auto_detection.
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Get more help at https://help.gradle.org.
BUILD FAILED in 7s
```
If a compatible toolchain can be discovered (e.g. requested Java 8, but
provided both Java 8 and Java 11 toolchain locations) then it still prints a
warning, but the build will succeed with a successful build of the affected
project instead of skipping it. The requested build target depends on that
incompatible target so we should ensure that it builds.
```
> Configure project :sdks:java:container:agent
Requested a toolchain for language version 11 because a toolchain for
language version 8 is incompatible with the minimum supported language version.
BUILD SUCCESSFUL in 8s
```
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