Eclipse插件开发 - Gradle无法从Eclipse启动器运行：java.io.IOException：Access denied [英] Eclipse plugin development - Gradle fails to run from Eclipse launcher: java.io.IOException: Access denied

问题描述

我正在开发 Eclipse插件来运行Gradle 从Eclipse只是一个应用程序（使用Eclipse LaunchConfiguration）。但是，即使在为此新进程设置 JAVA_HOME 和 GRADLE_HOME 之后，就会出现错误。以下是通过传递附加的 - debug --stacktrace

I am developing Eclipse plugin to run Gradle from Eclipse just as an application (using Eclipse LaunchConfiguration). But even after setting JAVA_HOME and GRADLE_HOME for this new process, it finishes with error. Below is what I got by passing additional --debug --stacktrace

所以对于什么文件访问被拒绝，如何发现？

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上启动了JRE 1.7

Eclipse is launched with JRE 1.7 on Win32

Gradle 1.10。

Gradle 1.10. Of course the same works from command line shell.

推荐答案

发现这一点的方法是查看Gradle代码库。 IOException 由以下行抛出：

The way to discover this is to look into the Gradle codebase. The IOException is thrown by the following line:

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

显然，Java进程无法创建一个临时文件。也许这是一个文件许可问题。

So apparently, the Java process isn't able to create a temporary file. Perhaps this is a file permission issue.

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