Xml parsing with dom4j in java

From:

"Danilo7" <danilou2@gmail.com>

Newsgroups:

comp.lang.java.help

Date:

10 Apr 2007 07:51:01 -0700

Message-ID:

<1176216660.960566.181340@y80g2000hsf.googlegroups.com>

Hi everyone,
i have to debug this part of a program that doesn't wanna work
fo is a variable Concept that has inherited the metods elements()
element() from AbstractElement of dom4j
fo has this structure
fo is written in owl that is very similar to xml

<and xmlns=" http://dl.kr.org/dig/2003/02/lang">
  <catom name="Nautical_equipments"/>
  <all>
    <ratom name="has_anchor_windlass"/>
    <and>
      < catom name="Anchor_windlass"/>
      <catom name="Electric_Anchor_windlass"/>
    </and>
  </all>
  <all>
    <ratom name="has_Gangway"/>
    <and>
      <catom name="Gangway"/>
      <catom name="Automatic_gangway"/>
    </and>
  </all>
</and>

This is the part of the program where i think the problem is...

   1. for (int f=0; f<indfirst.size(); f++){
   2. Concept fo = (Concept)indfirst.elementAt(f);
   3. System.out.println(f + " first for");
   4. System.out.println("Concept fo"+ "number " +f+
fo.toString());
   5. for(Iterator
h=fo.elements("catom").iterator();h.hasNext();)
   6. {
   7.
   8. System.out.println("List of elements in fo" +
fo.elements().size());
   9. System.out.println(h.toString()+ "second for");
  10. System.out.println("List of catom elements " +
fo.elements("catom").size());
  11. Catom r =(Catom)h.next();
  12. System.out.println("Catom" + r.toString());
  13. }

Checking the value of the variables with System.out.println at lines 8
and 10, i get that fo.elements("catom").size() is a List of only one
element...that is catom name="Nautical_equipments"/...(line 12)
What is the problem with elements("catom")?
Why doesn't it return a list with all the 5 catom elements i have in
my Xml/Owl???
Is the java code the problem? or the structure of the xml???
Help please!!
Danilo