Eclipse插件开发-Gradle无法从Eclipse启动器运行：java.io.IOException：访问被拒绝

Question

我正在开发Eclipse插件，以作为应用程序从Eclipse
运行Gradle（使用Eclipse
LaunchConfiguration）。但是即使在设置之后JAVA_HOME，GRADLE_HOME对于这个新过程，它仍然会出错。以下是我通过额外获得的内容--debug --stacktrace

那么，拒绝访问哪个文件以及如何发现呢？

21:50:18.828 [ERROR] [org.gradle.BuildExceptionReporter] 
21:50:18.828 [ERROR] [org.gradle.BuildExceptionReporter] FAILURE: Build failed with an exception.
21:50:18.844 [ERROR] [org.gradle.BuildExceptionReporter] 
21:50:18.844 [ERROR] [org.gradle.BuildExceptionReporter] * What went wrong:
21:50:18.844 [ERROR] [org.gradle.BuildExceptionReporter] java.lang.ExceptionInInitializerError (no error message)
21:50:18.844 [ERROR] [org.gradle.BuildExceptionReporter] 
21:50:18.844 [ERROR] [org.gradle.BuildExceptionReporter] * Exception is:
21:50:18.844 [ERROR] [org.gradle.BuildExceptionReporter] java.lang.ExceptionInInitializerError
21:50:18.844 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.internal.nativeplatform.filesystem.FileSystems.getDefault(FileSystems.java:22)
21:50:18.844 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.initialization.LayoutCommandLineConverter.convert(LayoutCommandLineConverter.java:39)
21:50:18.844 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.cli.BuildActionsFactory.createAction(BuildActionsFactory.java:107)
21:50:18.844 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.createAction(CommandLineActionFactory.java:206)
21:50:18.859 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:196)
21:50:18.859 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:174)
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:170)
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:139)
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:33)
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:22)
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.Main.doAction(Main.java:46)
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.bootstrap.EntryPoint.run(EntryPoint.java:45)
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.Main.main(Main.java:37)
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.bootstrap.ProcessBootstrap.runNoExit(ProcessBootstrap.java:50)
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.bootstrap.ProcessBootstrap.run(ProcessBootstrap.java:32)
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.launcher.GradleMain.main(GradleMain.java:23)
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter] Caused by: java.lang.RuntimeException: java.io.IOException: Access denied
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.internal.nativeplatform.filesystem.GenericFileSystem.<init>(GenericFileSystem.java:88)
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.internal.nativeplatform.filesystem.FileSystems$DefaultFileSystem.<clinit>(FileSystems.java:30)
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter]    ... 16 more
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter] Caused by: java.io.IOException: Access denied
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.internal.nativeplatform.filesystem.GenericFileSystem.createFile(GenericFileSystem.java:99)
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter]    at org.gradle.internal.nativeplatform.filesystem.GenericFileSystem.<init>(GenericFileSystem.java:84)
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter]    ... 17 more
21:50:18.860 [ERROR] [org.gradle.BuildExceptionReporter]

Eclipse在Win32上随JRE 1.7一起启动

摇篮1.10。当然，命令行外壳也可以实现同样的功能。

Answer 1

发现此问题的方法是查看Gradle代码库。该IOException由以下行抛出：

File file = File.createTempFile("gradle_fs_probing", null, null);

因此，显然，Java进程无法创建临时文件。也许这是文件权限问题。