Class CollectionUtils


  • public final class CollectionUtils
    extends Object
    • Method Detail

      • copyMap

        public static <K,​V> Map<K,​V> copyMap​(Map<? extends K,​? extends V> map)
        Attempts to use native Object.clone() methods on available map types. If a map cannot be properly cloned, a new HashMap is returned.
        Type Parameters:
        K - The key type
        V - The value type
        Parameters:
        map - The map input
        Returns:
        A copied map
      • copyList

        public static <T> List<T> copyList​(List<? extends T> list)
        Attempts to use native Object.clone() methods on available map types. If a list cannot be properly cloned, a new ArrayList is returned.
        Type Parameters:
        T - The value type
        Parameters:
        list - The list input
        Returns:
        A copied list