Alfresco network folders stop working after a while. I see an exception in the logs:
java.lang.IllegalArgumentException: Invalid NetworkFile class
at org.alfresco.jlan.server.filesys.cache.FileStateLockManager.lockFile(FileStateLockManager.java:43)
at org.alfresco.jlan.smb.server.NTProtocolHandler.procLockingAndX(NTProtocolHandler.java:1955)
at org.alfresco.jlan.smb.server.NTProtocolHandler.runProtocol(NTProtocolHandler.java:284)
at org.alfresco.jlan.smb.server.SMBSrvSession.runHandler(SMBSrvSession.java:1377)
at org.alfresco.jlan.smb.server.SMBSrvSession.run(SMBSrvSession.java:1298)
at java.lang.Thread.run(Thread.java:619)
