Unobvious failure of Gradle's Jaxb generation with Ant configuration inside on executing javac command - gradle

Question

We have a part of Gradle config in order to generate Java classes from WSDL.
task genJaxb {
ext.sourcesDir = "${buildDir}/generated-sources/jaxb"
ext.classesDir = "${buildDir}/classes/jaxb"
ext.schemaBnfo = "${projectDir}/src/main/resources/wsdl/1C_BNFO.wsdl"
ext.schemaUh = "${projectDir}/src/main/resources/wsdl/1C_UH.wsdl"
ext.sourcesBnfoPackage = 'package.integration.onec.ws.model.bnfo'
ext.sourcesUhPackage = 'package.integration.onec.ws.model.uh'
outputs.dir classesDir
doLast() {
project.ant {
taskdef name: "xjc", classname: "com.sun.tools.xjc.XJCTask",
classpath: configurations.jaxb.asPath
mkdir(dir: sourcesDir)
mkdir(dir: classesDir)
xjc(destdir: sourcesDir, schema: schemaBnfo, package: sourcesBnfoPackage) {
arg(value: "-wsdl")
}
xjc(destdir: sourcesDir, schema: schemaUh, package: sourcesUhPackage) {
arg(value: "-wsdl")
}
javac(destdir: classesDir, source: sourceCompatibility, target: targetCompatibility, debug: true,
debugLevel: "lines,vars,source",
classpath: configurations.jaxb.asPath) {
src(path: sourcesDir)
include(name: "**/*.java")
include(name: "*.java")
}
copy(todir: classesDir) {
fileset(dir: sourcesDir, erroronmissingdir: false) {
exclude(name: "**/*.java")
}
}
}
}
}
When establishing the project, it fails on javac part after the generation like that:
> Task :genJaxb FAILED
[ant:javac] : warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds
[ant:javac] javac: invalid target release: 11
[ant:javac] Usage: javac <options> <source files>
[ant:javac] use -help for a list of possible options
FAILURE: Build failed with an exception.
* Where:
Build file 'ourproject\build.gradle' line: 105
* What went wrong:
Execution failed for task ':genJaxb'.
> Compile failed; see the compiler error output for details.
* Try:
Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':genJaxb'.
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:110)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:77)
at org.gradle.api.internal.tasks.execution.OutputDirectoryCreatingTaskExecuter.execute(OutputDirectoryCreatingTaskExecuter.java:51)
at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:59)
at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:54)
at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:59)
at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:101)
at org.gradle.api.internal.tasks.execution.FinalizeInputFilePropertiesTaskExecuter.execute(FinalizeInputFilePropertiesTaskExecuter.java:44)
at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:91)
at org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:62)
at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:59)
at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:54)
at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:34)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.run(EventFiringTaskExecuter.java:51)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:301)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:293)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:175)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:46)
at org.gradle.execution.taskgraph.LocalTaskInfoExecutor.execute(LocalTaskInfoExecutor.java:42)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareWorkItemExecutor.execute(DefaultTaskExecutionGraph.java:277)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareWorkItemExecutor.execute(DefaultTaskExecutionGraph.java:262)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$ExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:135)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$ExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:130)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$ExecutorWorker.execute(DefaultTaskPlanExecutor.java:200)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$ExecutorWorker.executeWithWork(DefaultTaskPlanExecutor.java:191)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$ExecutorWorker.run(DefaultTaskPlanExecutor.java:130)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
Caused by: : Compile failed; see the compiler error output for details.
at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:1426)
at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:1130)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
at org.gradle.api.internal.project.ant.BasicAntBuilder.nodeCompleted(BasicAntBuilder.java:78)
at org.gradle.api.internal.project.ant.BasicAntBuilder.doInvokeMethod(BasicAntBuilder.java:103)
at org.gradle.internal.metaobject.BeanDynamicObject$GroovyObjectAdapter.invokeOpaqueMethod(BeanDynamicObject.java:579)
at org.gradle.internal.metaobject.BeanDynamicObject$MetaClassAdapter.invokeMethod(BeanDynamicObject.java:506)
at org.gradle.internal.metaobject.BeanDynamicObject.tryInvokeMethod(BeanDynamicObject.java:191)
at org.gradle.internal.metaobject.ConfigureDelegate.invokeMethod(ConfigureDelegate.java:57)
at build_9hcqoyzvcd6iqnfd9rrmudx9z$_run_closure7$_closure17$_closure18.doCall(ourproject\build.gradle:105)
at org.gradle.api.internal.ClosureBackedAction.execute(ClosureBackedAction.java:71)
at org.gradle.util.ConfigureUtil.configureTarget(ConfigureUtil.java:155)
at org.gradle.util.ConfigureUtil.configure(ConfigureUtil.java:106)
at org.gradle.api.internal.project.DefaultProject.ant(DefaultProject.java:1132)
at org.gradle.api.Project$ant$0.call(Unknown Source)
at build_9hcqoyzvcd6iqnfd9rrmudx9z$_run_closure7$_closure17.doCall(project\build.gradle:91)
at org.gradle.api.internal.AbstractTask$ClosureTaskAction.execute(AbstractTask.java:739)
at org.gradle.api.internal.AbstractTask$ClosureTaskAction.execute(AbstractTask.java:712)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$1.run(ExecuteActionsTaskExecuter.java:131)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:301)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:293)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:175)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:120)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:99)
... 31 more
* Get more help at https://help.gradle.org
BUILD FAILED in 0s
Gradle version is 4.10.3.

Answer 1

The issue was fixed by switching the JVM that runs gradle from 1.8 to 12.