* @see java.lang.Throwable#getMessage
      */
    public LinkException(String explanation) {
	super(explanation);
	linkResolvedName = null;
	linkResolvedObj = null;
	linkRemainingName = null;
	linkExplanation = null;
    }

    /**
      * Constructs a new instance of LinkException.
      * All the non-link-related and link-related fields are initialized to null.
      */
    public LinkException() {
	super();
	linkResolvedName = null;
	linkResolvedObj = null;
	linkRemainingName = null;
	linkExplanation = null;
    }

    /**
     * Retrieves the leading portion of the link name that was resolved
     * successfully.
     *
     * @return The part of the link name that was resolved successfully.
     * 		It is a composite name. It can be null, which means
     *		the link resolved name field has not been set.
     * @see #getLinkResolvedObj
     * @see #setLinkResolvedName
     */
    public Name getLinkResolvedName() {
	return this.linkResolvedName;
    }

    /**
     * Retrieves the remaining unresolved portion of the link name.
     * @return The part of the link name that has not been resolved.
     * 		It is a composite name. It can be null, which means
     *		the link remaining name field has not been set.
     * @see #setLinkRemainingName
     */
    public Name getLinkRemainingName() {
	return this.linkRemainingName;
    }

    /**
     * Retrieves the object to which resolution was successful.
     * This is the object to which the resolved link name is bound.
     *
     * @return The possibly null object that was resolved so far.
     * If null, it means the link resolved object field has not been set.
     * @see #getLinkResolvedName
     * @see #setLinkResolvedObj
     */
    public Object getLinkResolvedObj() {
	return this.linkResolvedObj;
    }

    /**
      * Retrieves the explanation associated with the problem encounter
      * when resolving a link.
      * 
      * @return The possibly null detail string explaining more about the problem
      * with resolving a link.
      * 	If null, it means there is no
      *		link detail message for this exception.
      * @see #setLinkExplanation
      */
    public String getLinkExplanation() {
	return this.linkExplanation;
    }

    /**
      * Sets the explanation associated with the problem encounter
      * when resolving a link.
      * 
      * @param msg The possibly null detail string explaining more about the problem
      * with resolving a link. If null, it means no detail will be recorded.
      * @see #getLinkExplanation
      */
    public void setLinkExplanation(String msg) {
	this.linkExplanation = msg;
    }

    /**
     * Sets the resolved link name field of this exception.
     *<p>
     * <tt>name</tt> is a composite name. If the intent is to set
     * this field using a compound name or string, you must 
     * "stringify" the compound name, and create a composite
     * name with a single component using the string. You can then
     * invoke this method using the resulting composite name.
     *<p>
     * A copy of <code>name</code> is made and stored.
     * Subsequent changes to <code>name</code> does not
     * affect the copy in this NamingException and vice versa.
     *
     *