I've got the same problem on Windows Vista 32bit with the lattest release (1.485).
However, this error does not seem to have any impact on the build.
There is also a similar problem at the end of the build.
I join the french version of the errors for Nicolas:
ln 2012-10-11_10-42-22 C:\Users\Thomas\.jenkins\jobs\test\builds\1 failed
java.nio.file.FileSystemException: C:\Users\Thomas\.jenkins\jobs\test\builds\1: Le client ne dispose pas d'un privilège nécessaire.
at sun.nio.fs.WindowsException.translateToIOException(Unknown Source)
at sun.nio.fs.WindowsException.rethrowAsIOException(Unknown Source)
at sun.nio.fs.WindowsException.rethrowAsIOException(Unknown Source)
at sun.nio.fs.WindowsFileSystemProvider.createSymbolicLink(Unknown Source)
at java.nio.file.Files.createSymbolicLink(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at hudson.Util.createSymlinkJava7(Util.java:1065)
at hudson.Util.createSymlink(Util.java:1009)
at hudson.model.Run.execute(Run.java:1514)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:477)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:236)
ln builds/2012-10-11_10-48-12 C:\Users\Thomas\.jenkins\jobs\test\builds\..\lastSuccessful failed
java.nio.file.FileSystemException: C:\Users\Thomas\.jenkins\jobs\test\builds\..\lastSuccessful: Le client ne dispose pas d'un privilège nécessaire.
at sun.nio.fs.WindowsException.translateToIOException(Unknown Source)
at sun.nio.fs.WindowsException.rethrowAsIOException(Unknown Source)
at sun.nio.fs.WindowsException.rethrowAsIOException(Unknown Source)
at sun.nio.fs.WindowsFileSystemProvider.createSymbolicLink(Unknown Source)
at java.nio.file.Files.createSymbolicLink(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at hudson.Util.createSymlinkJava7(Util.java:1065)
at hudson.Util.createSymlink(Util.java:1009)
at hudson.model.AbstractBuild.createSymlink(AbstractBuild.java:497)
at hudson.model.AbstractBuild.access$700(AbstractBuild.java:103)
at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:732)
at hudson.model.Run.execute(Run.java:1541)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:477)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:236)
ln builds/2012-10-11_10-48-12 C:\Users\Thomas\.jenkins\jobs\test\builds\..\lastStable failed
java.nio.file.FileSystemException: C:\Users\Thomas\.jenkins\jobs\test\builds\..\lastStable: Le client ne dispose pas d'un privilège nécessaire.
at sun.nio.fs.WindowsException.translateToIOException(Unknown Source)
at sun.nio.fs.WindowsException.rethrowAsIOException(Unknown Source)
at sun.nio.fs.WindowsException.rethrowAsIOException(Unknown Source)
at sun.nio.fs.WindowsFileSystemProvider.createSymbolicLink(Unknown Source)
at java.nio.file.Files.createSymbolicLink(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at hudson.Util.createSymlinkJava7(Util.java:1065)
at hudson.Util.createSymlink(Util.java:1009)
at hudson.model.AbstractBuild.createSymlink(AbstractBuild.java:497)
at hudson.model.AbstractBuild.access$700(AbstractBuild.java:103)
at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:735)
at hudson.model.Run.execute(Run.java:1541)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:477)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:236)
I've got the same problem on Windows Vista 32bit with the lattest release (1.485).
However, this error does not seem to have any impact on the build.
There is also a similar problem at the end of the build.
I join the french version of the errors for Nicolas:
ln 2012-10-11_10-42-22 C:\Users\Thomas\.jenkins\jobs\test\builds\1 failed
java.nio.file.FileSystemException: C:\Users\Thomas\.jenkins\jobs\test\builds\1: Le client ne dispose pas d'un privilège nécessaire.
at sun.nio.fs.WindowsException.translateToIOException(Unknown Source)
at sun.nio.fs.WindowsException.rethrowAsIOException(Unknown Source)
at sun.nio.fs.WindowsException.rethrowAsIOException(Unknown Source)
at sun.nio.fs.WindowsFileSystemProvider.createSymbolicLink(Unknown Source)
at java.nio.file.Files.createSymbolicLink(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at hudson.Util.createSymlinkJava7(Util.java:1065)
at hudson.Util.createSymlink(Util.java:1009)
at hudson.model.Run.execute(Run.java:1514)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:477)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:236)
ln builds/2012-10-11_10-48-12 C:\Users\Thomas\.jenkins\jobs\test\builds\..\lastSuccessful failed
java.nio.file.FileSystemException: C:\Users\Thomas\.jenkins\jobs\test\builds\..\lastSuccessful: Le client ne dispose pas d'un privilège nécessaire.
at sun.nio.fs.WindowsException.translateToIOException(Unknown Source)
at sun.nio.fs.WindowsException.rethrowAsIOException(Unknown Source)
at sun.nio.fs.WindowsException.rethrowAsIOException(Unknown Source)
at sun.nio.fs.WindowsFileSystemProvider.createSymbolicLink(Unknown Source)
at java.nio.file.Files.createSymbolicLink(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at hudson.Util.createSymlinkJava7(Util.java:1065)
at hudson.Util.createSymlink(Util.java:1009)
at hudson.model.AbstractBuild.createSymlink(AbstractBuild.java:497)
at hudson.model.AbstractBuild.access$700(AbstractBuild.java:103)
at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:732)
at hudson.model.Run.execute(Run.java:1541)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:477)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:236)
ln builds/2012-10-11_10-48-12 C:\Users\Thomas\.jenkins\jobs\test\builds\..\lastStable failed
java.nio.file.FileSystemException: C:\Users\Thomas\.jenkins\jobs\test\builds\..\lastStable: Le client ne dispose pas d'un privilège nécessaire.
at sun.nio.fs.WindowsException.translateToIOException(Unknown Source)
at sun.nio.fs.WindowsException.rethrowAsIOException(Unknown Source)
at sun.nio.fs.WindowsException.rethrowAsIOException(Unknown Source)
at sun.nio.fs.WindowsFileSystemProvider.createSymbolicLink(Unknown Source)
at java.nio.file.Files.createSymbolicLink(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at hudson.Util.createSymlinkJava7(Util.java:1065)
at hudson.Util.createSymlink(Util.java:1009)
at hudson.model.AbstractBuild.createSymlink(AbstractBuild.java:497)
at hudson.model.AbstractBuild.access$700(AbstractBuild.java:103)
at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:735)
at hudson.model.Run.execute(Run.java:1541)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:477)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:236)