类分层结构
- java.lang.Object
- org.olat.lms.commons.util.collection.AlwaysEmptyMap<K,V> (implements java.util.Map<K,V>)
- org.olat.lms.commons.util.collection.ArrayHelper
- java.util.Dictionary<K,V>
- java.util.Hashtable<K,V> (implements java.lang.Cloneable, java.util.Map<K,V>, java.io.Serializable)
- org.olat.lms.commons.util.collection.FIFOMap