if(!vfs.setupVFSSession(vfsSession,this))
VFSSession session = vfs.createVFSSession(from,this); if(session == null)
	public void rename(String from)	{		String[] args = { MiscUtilities.getFileName(from) };		String to = GUIUtilities.input(this,"vfs.browser.rename",			args,null);		if(to == null)			return;		to = vfs.constructPath(vfs.getFileParent(from),to);		if(!vfs.setupVFSSession(vfsSession,this))			return;		VFSManager.runInWorkThread(new BrowserIORequest(			BrowserIORequest.RENAME,this,			vfsSession,vfs,from,to));		reloadDirectorySafely(vfs.getFileParent(from));	}