Class CloneTransformer

  • All Implemented Interfaces:
    java.io.Serializable, Transformer

    @Deprecated(since="2021-04-30")
    public class CloneTransformer
    extends java.lang.Object
    implements Transformer, java.io.Serializable
    Deprecated.
    Commons Collections 3 is in maintenance mode. Commons Collections 4 should be used instead.
    Transformer implementation that returns a clone of the input object.

    Clone is performed using PrototypeFactory.getInstance(input).create().

    WARNING: from v3.2.2 onwards this class will throw an UnsupportedOperationException when trying to serialize or de-serialize an instance to prevent potential remote code execution exploits.

    In order to re-enable serialization support for CloneTransformer the following system property can be used (via -Dproperty=true):

      org.apache.commons.collections.enableUnsafeSerialization
      
    Since:
    Commons Collections 3.0
    See Also:
    Serialized Form
    • Field Summary

      Fields 
      Modifier and Type Field Description
      static Transformer INSTANCE
      Deprecated.
      Singleton predicate instance
    • Field Detail

      • INSTANCE

        public static final Transformer INSTANCE
        Deprecated.
        Singleton predicate instance
    • Method Detail

      • getInstance

        public static Transformer getInstance()
        Deprecated.
        Factory returning the singleton instance.
        Returns:
        the singleton instance
        Since:
        Commons Collections 3.1
      • transform

        public java.lang.Object transform​(java.lang.Object input)
        Deprecated.
        Transforms the input to result by cloning it.
        Specified by:
        transform in interface Transformer
        Parameters:
        input - the input object to transform
        Returns:
        the transformed result