NetBeans

netbeans5.5で、maven2プラグインを使った場合に、「プロジェクトのクラスパスのスキャン中」って画面の右下に出て、プログレスバーが33%で、動き続けてます。
もう、30minになります。
原因とかの良く判らない。＆動作が激しく重くなる。

詳しくは、ログで。ログとか、見苦しいので、・・・・

C:\Documents and Settings\USER\.netbeans\5.5\var\logにあるログを見ると

[org.netbeans.javacore] Rebooting storage for jar:file:/C:/app/m2/repository/jexcelapi/jxl/2.4.2/jxl-2.4.2.jar!/ because of a fatal error during storage mount.
[org.netbeans.javacore] INFORMATIONAL *********** Exception occurred ************ at 10:15 AM on Apr 24, 2007
java.lang.RuntimeException
at org.netbeans.modules.javacore.JMManager.mountStorage(JMManager.java:396)
[catch] at org.netbeans.modules.javacore.JMManager.resolveCPRoot(JMManager.java:1010)
at org.netbeans.modules.javacore.JMManager.resolveCodebases(JMManager.java:871)
at org.netbeans.modules.javacore.JMManager$2.run(JMManager.java:821)
at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:499)
at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:932)
==>
org.netbeans.mdr.util.MountFailedException: Partition mount failed.
at org.netbeans.mdr.NBMDRepositoryImpl.mountStorage(NBMDRepositoryImpl.java:535)
at org.netbeans.modules.javacore.JMManager.mountStorage(JMManager.java:386)
[catch] at org.netbeans.modules.javacore.JMManager.resolveCPRoot(JMManager.java:1010)
at org.netbeans.modules.javacore.JMManager.resolveCodebases(JMManager.java:871)
at org.netbeans.modules.javacore.JMManager$2.run(JMManager.java:821)
at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:499)
at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:932)
org.netbeans.mdr.persistence.StorageBadRequestException: Unable to delete btree repository C:\Documents and Settings\USER\.netbeans\5.5/var/cache/mdrstorage/org-netbeans-java/0.70/feda9acf74202682048948dfcf5a6e4a0fb84eab3apijxl242jxl242jar
at org.netbeans.mdr.persistence.btreeimpl.btreestorage.BtreeStorage.create(BtreeStorage.java:138)
at org.netbeans.mdr.storagemodel.MdrStorage.init(MdrStorage.java:469)
at org.netbeans.mdr.storagemodel.MdrStorage.mountStorage(MdrStorage.java:364)
at org.netbeans.mdr.storagemodel.MdrStorage.mountStorage(MdrStorage.java:343)
at org.netbeans.mdr.NBMDRepositoryImpl.mountStorage(NBMDRepositoryImpl.java:530)
at org.netbeans.modules.javacore.JMManager.mountStorage(JMManager.java:386)
at org.netbeans.modules.javacore.JMManager.rebootStorage(JMManager.java:408)
at org.netbeans.modules.javacore.JMManager.resolveCPRoot(JMManager.java:1012)
at org.netbeans.modules.javacore.JMManager.resolveCodebases(JMManager.java:871)
at org.netbeans.modules.javacore.JMManager$2.run(JMManager.java:821)
at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:499)
at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:932)

こんなのが、繰り返されているな・・・