public synchronized void clear() {
Iterator it = _hash.entrySet().iterator();
while (it.hasNext()) {
try {
Map.Entry en = (Map.Entry) it.next();
CachedObjectInfo obj = (CachedObjectInfo) en.getValue();
((File) (obj.getKey())).delete();
} catch (Exception e) {
// ignored
}
}
_hash.clear();