When running any mvn command (tried 3.0.3 and 3.0.4) on OSX Lion I see numerous lines of output similar to below. I added a mac box to my build farm. The Maven repo is hosted on a net app box that is visible to all my Redhat, Windows and now OSX build nodes via an NFS mount. The build doesn't fail but the log is seriously bloated. If I move the same build to a red hat or windows box in my build farm I don't see any such warnings. In this particular case I am simply running mvn help:effective-settings
[WARNING] Failed to read resolution tracking file /Volumes/sharedrepo/repository/org/codehaus/sonar/resolver-status.properties java.io.IOException: Operation not supported at sun.nio.ch.FileChannelImpl.lock0(Native Method) at sun.nio.ch.FileChannelImpl.lock(FileChannelImpl.java:832) at org.sonatype.aether.impl.internal.TrackingFileManager.lock(TrackingFileManager.java:209) at org.sonatype.aether.impl.internal.TrackingFileManager.read(TrackingFileManager.java:62) at org.sonatype.aether.impl.internal.DefaultUpdateCheckManager.read(DefaultUpdateCheckManager.java:478) at org.sonatype.aether.impl.internal.DefaultUpdateCheckManager.checkMetadata(DefaultUpdateCheckManager.java:244) at org.sonatype.aether.impl.internal.DefaultMetadataResolver.resolve(DefaultMetadataResolver.java:299) at org.sonatype.aether.impl.internal.DefaultMetadataResolver.resolveMetadata(DefaultMetadataResolver.java:177) at org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveMetadata(DefaultRepositorySystem.java:338) at org.apache.maven.plugin.prefix.internal.DefaultPluginPrefixResolver.resolveFromRepository(DefaultPluginPrefixResolver.java:185) at org.apache.maven.plugin.prefix.internal.DefaultPluginPrefixResolver.resolve(DefaultPluginPrefixResolver.java:90) at org.apache.maven.lifecycle.internal.MojoDescriptorCreator.findPluginForPrefix(MojoDescriptorCreator.java:262) at org.apache.maven.lifecycle.internal.MojoDescriptorCreator.getMojoDescriptor(MojoDescriptorCreator.java:222) at org.apache.maven.lifecycle.internal.DefaultLifecycleTaskSegmentCalculator.calculateTaskSegments(DefaultLifecycleTaskSegmentCalculator.java:106) at org.apache.maven.lifecycle.internal.DefaultLifecycleTaskSegmentCalculator.calculateTaskSegments(DefaultLifecycleTaskSegmentCalculator.java:86) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:98) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:319) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156) at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196) at org.apache.maven.cli.MavenCli.main(MavenCli.java:141) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352) Any pointers appreciated Thanks