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我在相同的根文件夾中的項目使用搖籃插件與編譯依賴關係時遇到ClassNotFoundException個插件。搖籃拋出使用ClassNotFoundException的具有依賴性

的目錄結構比較簡單,用插件,該項目將使用它:

    • buildSrc
    • demo-project

build.gradlebuildSrc如下:

apply plugin: 'groovy' 

sourceCompatibility = 1.6 

repositories { 
    mavenCentral() 
} 

dependencies { 
    compile gradleApi() 
    compile localGroovy() 

    compile 'org.apache.commons:commons-configuration2:2.0' 
    compile 'commons-beanutils:commons-beanutils:1.9.2' 
} 

和插件本身建立正確。

當應用插件我demo-project,因爲它無法找到commons-configuration2依賴(所以插件執行,不是在牽連線路出現故障)的afterEvaluate部分失敗:

FAILURE: Build failed with an exception. 

* What went wrong: 
A problem occurred configuring project ':demo-project'. 
> java.lang.ClassNotFoundException: org.apache.commons.configuration2.PropertiesConfiguration 

只是爲了完成我的問題,這裏的在build.gradledemo-project

apply plugin: 'java' 
apply plugin: 'com.sample.myplugin' 

thisIsMyPluginConfiguration { 
    something = 'here' 
} 

這是一個已知的問題還是有,我可以使用一個解決方法嗎?

可能與Adding dependencies to a custom gradle plugin有關。

編輯:試圖指定不同的依賴使得它的工作。它看起來像是一個問題,如何加載類罪魁禍首PropertiesConfiguration。完整的堆棧跟蹤是:

* Exception is: 
org.gradle.api.ProjectConfigurationException: A problem occurred configuring project ':demo-java'. 
     at org.gradle.configuration.project.LifecycleProjectEvaluator.addConfigurationFailure(LifecycleProjectEvaluator.java:79) 
     at org.gradle.configuration.project.LifecycleProjectEvaluator.notifyAfterEvaluate(LifecycleProjectEvaluator.java:74) 
     at org.gradle.configuration.project.LifecycleProjectEvaluator.evaluate(LifecycleProjectEvaluator.java:61) 
     at org.gradle.api.internal.project.AbstractProject.evaluate(AbstractProject.java:510) 
     at org.gradle.api.internal.project.AbstractProject.evaluate(AbstractProject.java:90) 
     at org.gradle.execution.TaskPathProjectEvaluator.configureHierarchy(TaskPathProjectEvaluator.java:47) 
     at org.gradle.configuration.DefaultBuildConfigurer.configure(DefaultBuildConfigurer.java:35) 
     at org.gradle.initialization.DefaultGradleLauncher$2.run(DefaultGradleLauncher.java:125) 
     at org.gradle.internal.Factories$1.create(Factories.java:22) 
     at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:90) 
     at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:52) 
     at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:122) 
     at org.gradle.initialization.DefaultGradleLauncher.access$200(DefaultGradleLauncher.java:32) 
     at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:99) 
     at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:93) 
     at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:90) 
     at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:62) 
     at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:93) 
     at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:82) 
     at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:94) 
     at org.gradle.tooling.internal.provider.ExecuteBuildActionRunner.run(ExecuteBuildActionRunner.java:28) 
     at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35) 
     at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:43) 
     at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:28) 
     at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:78) 
     at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:48) 
     at org.gradle.launcher.exec.DaemonUsageSuggestingBuildActionExecuter.execute(DaemonUsageSuggestingBuildActionExecuter.java:51) 
     at org.gradle.launcher.exec.DaemonUsageSuggestingBuildActionExecuter.execute(DaemonUsageSuggestingBuildActionExecuter.java:28) 
     at org.gradle.launcher.cli.RunBuildAction.run(RunBuildAction.java:43) 
     at org.gradle.internal.Actions$RunnableActionAdapter.execute(Actions.java:170) 
     at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:237) 
     at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:210) 
     at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:35) 
     at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:24) 
     at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:206) 
     at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:169) 
     at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:33) 
     at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:22) 
     at org.gradle.launcher.Main.doAction(Main.java:33) 
     at org.gradle.launcher.bootstrap.EntryPoint.run(EntryPoint.java:45) 
     at org.gradle.launcher.bootstrap.ProcessBootstrap.runNoExit(ProcessBootstrap.java:54) 
     at org.gradle.launcher.bootstrap.ProcessBootstrap.run(ProcessBootstrap.java:35) 
     at org.gradle.launcher.GradleMain.main(GradleMain.java:23) 
     at org.gradle.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.java:30) 
     at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:129) 
     at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61) 
Caused by: org.apache.commons.configuration2.ex.ConfigurationRuntimeException: java.lang.ClassNotFoundException: org.apache.commons.configuration2.PropertiesConfiguration 
     at org.apache.commons.configuration2.beanutils.BeanHelper.fetchBeanClass(BeanHelper.java:549) 
     at org.apache.commons.configuration2.beanutils.BeanHelper.createBeanCreationContext(BeanHelper.java:616) 
     at org.apache.commons.configuration2.beanutils.BeanHelper.createBean(BeanHelper.java:456) 
     at org.apache.commons.configuration2.beanutils.BeanHelper.createBean(BeanHelper.java:479) 
     at org.apache.commons.configuration2.beanutils.BeanHelper.createBean(BeanHelper.java:492) 
     at org.apache.commons.configuration2.builder.BasicConfigurationBuilder.createResultInstance(BasicConfigurationBuilder.java:447) 
     at org.apache.commons.configuration2.builder.BasicConfigurationBuilder.createResult(BasicConfigurationBuilder.java:417) 
     at org.apache.commons.configuration2.builder.BasicConfigurationBuilder.getConfiguration(BasicConfigurationBuilder.java:285) 
     at org.apache.commons.configuration2.builder.ConfigurationBuilder$getConfiguration.call(Unknown Source) 
     at com.novoda.buildproperties.BuildProperties.<init>(BuildProperties.groovy:23) 
     at com.novoda.buildproperties.BuildPropertiesPlugin$_apply_closure1.doCall(BuildPropertiesPlugin.groovy:17) 
     at org.gradle.listener.ClosureBackedMethodInvocationDispatch.dispatch(ClosureBackedMethodInvocationDispatch.java:40) 
     at org.gradle.listener.ClosureBackedMethodInvocationDispatch.dispatch(ClosureBackedMethodInvocationDispatch.java:25) 
     at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:44) 
     at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:79) 
     at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:30) 
     at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93) 
     at com.sun.proxy.$Proxy11.afterEvaluate(Unknown Source) 
     at org.gradle.configuration.project.LifecycleProjectEvaluator.notifyAfterEvaluate(LifecycleProjectEvaluator.java:67) 
     ... 44 more 
Caused by: java.lang.ClassNotFoundException: org.apache.commons.configuration2.PropertiesConfiguration 
     at org.apache.commons.lang3.ClassUtils.getClass(ClassUtils.java:828) 
     at org.apache.commons.lang3.ClassUtils.getClass(ClassUtils.java:894) 
     at org.apache.commons.lang3.ClassUtils.getClass(ClassUtils.java:877) 
     at org.apache.commons.configuration2.beanutils.BeanHelper.loadClass(BeanHelper.java:507) 
     at org.apache.commons.configuration2.beanutils.BeanHelper.fetchBeanClass(BeanHelper.java:545) 
     ... 62 more 

回答

0

搜索網絡表明Gradle使用自定義類加載器來控制過程。下面是使用一些代碼,使PropertiesConfiguration被發現

ClassLoader gradleClassLoader = Thread.currentThread().getContextClassLoader() 
Thread.currentThread().setContextClassLoader(PropertiesConfiguration.class.getClassLoader()) 

methodThatUsesPropertiesConfiguration() 

Thread.currentThread().setContextClassLoader(gradleClassLoader) 

由於不是非常熟悉搖籃的類加載器的機制,這可能有其他人可以共享的後果。但是,在這個臨時切換期間調用的方法不會與其他Gradle功能交互,因此認爲它相對安全。