# Uses of Annotation Interface
org.apache.sis.util.ConditionallySafe

Packages that use ConditionallySafe
Package
Description
org.apache.sis.util.collection
Addition to the collection framework.

- ## Uses of ConditionallySafe in org.apache.sis.util.collection

  Methods in org.apache.sis.util.collection with annotations of type ConditionallySafe
  Modifier and Type
  Method
  Description
  `<T extends E>
  T`
  WeakHashSet.`unique(T element)`
  Returns an object equals to `element` if such an object already exists in this `WeakHashSet`.