java.io.IOException: File C:\Documents and Settings\alied.perez\.netbeans\7.0.1\var\cache\mavenindex\netbeans\_5.tis unable to be deleted.
   at org.codehaus.plexus.util.FileUtils.forceDelete(FileUtils.java:1373)
   at org.codehaus.plexus.util.FileUtils.cleanDirectory(FileUtils.java:1625)
   at org.codehaus.plexus.util.FileUtils.deleteDirectory(FileUtils.java:1570)
   at org.netbeans.modules.maven.indexer.NexusRepositoryIndexerImpl.loadIndexingContext(NexusRepositoryIndexerImpl.java:315)
   at org.netbeans.modules.maven.indexer.NexusRepositoryIndexerImpl.access$500(NexusRepositoryIndexerImpl.java:161)
   at org.netbeans.modules.maven.indexer.NexusRepositoryIndexerImpl$8.run(NexusRepositoryIndexerImpl.java:804)
   at org.netbeans.modules.maven.indexer.NexusRepositoryIndexerImpl$8.run(NexusRepositoryIndexerImpl.java:802)
Caused: org.openide.util.MutexException: java.io.IOException: File C:\Documents and Settings\alied.perez\.netbeans\7.0.1\var\cache\mavenindex\netbeans\_5.tis unable to be deleted.
   at org.openide.util.Mutex.writeAccess(Mutex.java:440)
   at org.netbeans.modules.maven.indexer.NexusRepositoryIndexerImpl.getRecords(NexusRepositoryIndexerImpl.java:802)
   at org.netbeans.modules.maven.indexer.api.RepositoryQueries.getRecords(RepositoryQueries.java:119)
   at org.netbeans.modules.maven.repository.ui.BasicArtifactPanel$4.run(BasicArtifactPanel.java:544)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1424)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1968)