Gradle clean無法刪除依賴jar

Question

我有一個多模塊Gradle 4.4項目 - 有一個父build.gradle ，然后是兩個子Gradle項目，每個項目都有自己的build.gradle 。 兩者都是Java項目（一個用於開發代碼，另一個用於QA）。 開發項目是QA項目的依賴項（我在QA項目的build.gradle有testCompile project(':dev-project') ）。 否則build.gradle文件中沒有任何遠程有趣或異常的build.gradle - 它們導入java插件和com.github.johnrengelman.shadow 。

如果我嘗試連續兩次構建父項目（沒有IDE打開，在沒有管理員權限的情況下從Git Bash運行./gradlew clean build ），則構建失敗：

09:55:24.449 [DEBUG] [org.gradle.internal.progress.DefaultBuildOperationExecutor] Completing Build operation 'Execute clean for :dev-project:clean'
09:55:24.449 [DEBUG] [org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter] Removed task artifact state for {} from context.
09:55:24.450 [DEBUG] [org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter] Finished executing task ':dev-project:clean'
09:55:24.450 [LIFECYCLE] [class org.gradle.internal.buildevents.TaskExecutionLogger] :dev-project:clean FAILED
09:55:24.451 [WARN] [org.gradle.api.Project] :dev-project:clean took 1587ms
09:55:24.451 [DEBUG] [org.gradle.internal.progress.DefaultBuildOperationExecutor] Completing Build operation 'Task :dev-project:clean'
09:55:24.451 [DEBUG] [org.gradle.internal.progress.DefaultBuildOperationExecutor] Build operation 'Task :dev-project:clean' completed
09:55:24.452 [INFO] [org.gradle.execution.taskgraph.DefaultTaskPlanExecutor] :dev-project:clean (Thread[Task worker for ':',5,main]) completed. Took 1.588 secs.
09:55:24.452 [DEBUG] [org.gradle.internal.work.DefaultWorkerLeaseService] Worker lease root.1.14 completed (1 worker(s) in use)
09:55:24.452 [DEBUG] [org.gradle.internal.resources.AbstractTrackedResourceLock] Task worker for ':': released lock on root.1.14
09:55:24.452 [DEBUG] [org.gradle.internal.resources.AbstractTrackedResourceLock] Task worker for ':': released lock on :
09:55:24.452 [DEBUG] [org.gradle.execution.taskgraph.DefaultTaskPlanExecutor] Task worker [Thread[Task worker for ':',5,main]] finished, busy: 1.588 secs, idle:     0.002 secs
09:55:24.453 [DEBUG] [org.gradle.execution.taskgraph.DefaultTaskPlanExecutor] Task worker [Thread[Daemon worker Thread 3,5,main]] finished, busy: 0.0 secs, idle:     1.59 secs
09:55:24.453 [DEBUG] [org.gradle.execution.taskgraph.DefaultTaskPlanExecutor] Task worker [Thread[Task worker for ':' Thread 2,5,main]] finished, busy: 0.0 secs,     idle: 1.591 secs
09:55:24.454 [DEBUG] [org.gradle.execution.taskgraph.DefaultTaskPlanExecutor] Task worker [Thread[Task worker for ':' Thread 3,5,main]] finished, busy: 0.0 secs,     idle: 1.592 secs
09:55:24.455 [DEBUG] [org.gradle.internal.progress.DefaultBuildOperationExecutor] Completing Build operation 'Run tasks'
09:55:24.456 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]
09:55:24.456 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] FAILURE: Build failed with an exception.
09:55:24.456 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]
09:55:24.456 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] * What went wrong:
09:55:24.456 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] Execution failed for task 'dev-project:clean'.
09:55:24.456 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] > Unable to delete file:     C:\workspace\parent-project\dev-project\libs\dev-project-0.1.0.jar
09:55:24.457 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]
09:55:24.457 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] * Try:
09:55:24.457 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]  Run with --scan to get full insights.
09:55:24.457 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]
09:55:24.457 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] * Exception is:
09:55:24.457 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] org.gradle.api.tasks.TaskExecutionException: Execution failed for task     ':dev-project:clean'.
09:55:24.457 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(    ExecuteActionsTaskExecuter.java:100)
09:55:24.457 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(    ExecuteActionsTaskExecuter.java:70)
09:55:24.458 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at     org.gradle.api.internal.tasks.execution.OutputDirectoryCreatingTaskExecuter.execute(OutputDirectoryCreatingTaskExecuter.java:51)
09:55:24.458 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(    SkipUpToDateTaskExecuter.java:62)

我懷疑dev-project JAR無法刪除，因為它依賴於QA項目，所以Gradle對它保持某種鎖定。

如果我在Windows任務管理器中刪除Java(TM) Platform SE Binary進程，我可以成功構建，但我希望它是自動的。

Answer 1

此錯誤是由Gradle Daemon引起的 - 它在構建完成后仍在后台運行，並且由於某種原因在dev-project jar上保持鎖定。

將org.gradle.daemon=false添加到我的全局gradle.properties文件已經解決了這個問題，盡管代價是建立速度略慢。

我向Gradle團隊提出了一個問題 ，如果有任何問題 ，我會更新這個答案。