cacheFileManager.open(!isCacheReadOnly);
cacheStorageManager.open(!isCacheReadOnly);
	protected void setFileManager(File cacheBase, boolean isCacheReadOnly) {		if (cacheFileManager != null)			cacheFileManager.close(); // close existing file manager first		if (cacheBase != null) {			cacheFileManager = new FileManager(cacheBase, isCacheReadOnly ? "none" : null, isCacheReadOnly); //$NON-NLS-1$			try {				cacheFileManager.open(!isCacheReadOnly);			} catch (IOException e) {				// Ignore the exception. The registry will be rebuilt from source.			}		}	}