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https://issues.apache.org/jira/browse/LANG-433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12604965#action_12604965
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Paul Benedict commented on LANG-433:
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I prefer this ticket be considered part of LANG-307. Because clone() is part of
Java's standard object methods, it should belong in ObjectUtils too, if not
anymore than to delegate to a known CloneUtils method. No checked exceptions
please and allow null-safety.
> clone() method for ObjectUtils
> ------------------------------
>
> Key: LANG-433
> URL: https://issues.apache.org/jira/browse/LANG-433
> Project: Commons Lang
> Issue Type: Improvement
> Affects Versions: 2.4
> Reporter: Emmanuel Bourg
> Fix For: 3.0
>
> Attachments: lang-433.patch
>
>
> We have a simple clone() method in Commons Configuration that could be added
> to ObjectUtils. It calls the public clone() method of a cloneable object, or
> throws a CloneNotSupportedException.
> Here is the code:
> {code:java}
> /**
> * An internally used helper method for cloning objects. This implementation
> * is not very sophisticated nor efficient. Maybe it can be replaced by an
> * implementation from Commons Lang later. The method checks whether the
> * passed in object implements the <code>Cloneable</code> interface. If
> * this is the case, the <code>clone()</code> method is invoked by
> * reflection. Errors that occur during the cloning process are re-thrown as
> * runtime exceptions.
> *
> * @param obj the object to be cloned
> * @return the cloned object
> * @throws CloneNotSupportedException if the object cannot be cloned
> */
> public static Object clone(Object obj) throws CloneNotSupportedException
> {
> if (obj instanceof Cloneable)
> {
> try
> {
> Method m = obj.getClass().getMethod(METHOD_CLONE);
> return m.invoke(obj);
> }
> catch (NoSuchMethodException nmex)
> {
> throw new CloneNotSupportedException("No clone() method found for
> class" + obj.getClass().getName());
> }
> catch (IllegalAccessException iaex)
> {
> throw new ConfigurationRuntimeException(iaex);
> }
> catch (InvocationTargetException itex)
> {
> throw new ConfigurationRuntimeException(itex);
> }
> }
> else
> {
> throw new CloneNotSupportedException(obj.getClass().getName() + "
> does not implement Cloneable");
> }
> }
> {code}
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