/*
 *                    BioJava development code
 *
 * This code may be freely distributed and modified under the
 * terms of the GNU Lesser General Public Licence.  This should
 * be distributed with the code.  If you do not have a copy,
 * see:
 *
 *      http://www.gnu.org/copyleft/lesser.html
 *
 * Copyright for this code is held jointly by the individual
 * authors.  These should be listed in @author doc comments.
 *
 * For more information on the BioJava project and its aims,
 * or to join the biojava-l mailing list, visit the home page
 * at:
 *
 *      http://www.biojava.org/
 *
 */
package org.biojava.bio.seq.io.agave;
import java.util.* ;

/**
 * xrefs
 *
 *  @author Hanning Ni    Doubletwist Inc
*/
public class  AGAVEXrefs{
     private List db_ids ;
     private List xrefs ;
     /** add @param id **/
     public void addDbId(AGAVEDbId id)
     {
         if( db_ids == null )
             db_ids =  new ArrayList(1) ;
         db_ids .add( id ) ;
     }
     /** add @param xref **/
     public void addXref(AGAVEXref xref)
     {
         if( xrefs == null )
             xrefs = new ArrayList(1) ;
         xrefs.add( xref ) ;
     }
     /** return a set of DbId **/
     public Iterator getDbIds()
     {
         return db_ids.iterator() ;
     }
     /** return a set of AGAVEXref **/
     public Iterator getXrefs()
     {
         return xrefs.iterator() ;
     }
     /**
      * @param indent  the leading space
      *  @param indent_unit the unit of indenting for xml format
      *
      **/
     public String toString(String indent, String indent_unit)
     {
       StringBuffer tmp = new StringBuffer();
       tmp.append(indent +  "<xrefs>" + "\n" );
       Iterator it = db_ids.iterator() ;
       while( it.hasNext() )
       {
           tmp.append( ((AGAVEDbId)it.next()).toString(indent + indent_unit, indent_unit) ) ;
       }
       it = xrefs.iterator() ;
       while( it.hasNext() )
       {
           tmp.append( ((AGAVEXref)it.next()).toString(indent + indent_unit, indent_unit) ) ;
       }
       tmp.append(indent + "</xrefs>" + "\n" );
       return tmp.toString() ;
     }
     /** the agave xml representation of xrefs **/
     public String toString()
     {
       StringBuffer tmp = new StringBuffer();
       tmp.append( "<xrefs>" + "\n" );
       Iterator it = db_ids.iterator() ;
       while( it.hasNext() )
       {
           tmp.append( (String)it.next() ) ;
       }
       it = xrefs.iterator() ;
       while( it.hasNext() )
       {
           tmp.append( (String)it.next() ) ;
       }
       tmp.append("</xrefs>" + "\n" );
       return tmp.toString() ;
     }
}

@@ -2402,32 +2402,34 @@
 .append(
- (String)it.next
+it.next().toString
 () ) ;%0A 

Fix to ClassCastException in toString() method.