我最近的任务是使用Jenkins，GitHub和Windows Server 2008派生CI解决方案，该解决方案配置为使用Git可执行文件（在Manage Jenkins - ＆gt; Configure System选项卡下）：
C:\msysgit\git-cmd.bat
虽然维基文章链接提供了一些见解，但我收到以下错误：
Building in workspace C:\Users\Jenkins\.jenkins\jobs\{job name}\workspace
Checkout:workspace / C:\Users\Jenkins\.jenkins\jobs\{job name}\workspace - hudson.remoting.LocalChannel@5a969ec9
Using strategy: Default
Cloning the remote Git repository
Cloning repository git@github.com:{git repo}.git
git --version
Process leaked file descriptors. See http://wiki.jenkins-ci.org/display/JENKINS/Spawning+processes+from+build for more information
Fetching upstream changes from origin
FATAL: Invalid id: Process leaked file descriptors. See http://wiki.jenkins-ci.org/display/JENKINS/Spawning+processes+from+build for more information
java.lang.IllegalArgumentException: Invalid id: Process leaked file descriptors. See [same wiki link] for more information
at org.eclipse.jgit.lib.ObjectId.fromString(ObjectId.java:232)
at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.revParse(CliGitAPIImpl.java:265)
at hudson.plugins.git.GitAPI.revParse(GitAPI.java:252)
at hudson.plugins.git.util.DefaultBuildChooser.getHeadRevision(DefaultBuildChooser.java:95)
at hudson.plugins.git.util.DefaultBuildChooser.getCandidateRevisions(DefaultBuildChooser.java:87)
at hudson.plugins.git.GitSCM$2.invoke(GitSCM.java:1051)
at hudson.plugins.git.GitSCM$2.invoke(GitSCM.java:942)
at hudson.FilePath.act(FilePath.java:904)
at hudson.FilePath.act(FilePath.java:877)
at hudson.plugins.git.GitSCM.determineRevisionToBuild(GitSCM.java:942)
at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1108)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1369)
at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:676)
at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:88)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:581)
at hudson.model.Run.execute(Run.java:1575)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:241)
造成这种情况的原因是什么？