Lazy fetch problem , null value

[CG <le...@gmail.com>]

I am using openjpa 1.0.3 that come with Apache Geronimo 2.1.3, I am
facing problem with the Lazy fetch ...

Material  is an EntityBean


public class Material extends BaseEntity
{
  :
  :

        @OneToMany(cascade=CascadeType.ALL, fetch = FetchType.LAZY,
mappedBy="material", targetEntity=BOM.class)
        private List<BOM> boms;

        @OneToMany(cascade=CascadeType.ALL, fetch = FetchType.LAZY,
mappedBy="material", targetEntity=BomDetail.class)
        private List<BomDetail> bomDetails;

   :
   :

        public BOM getBomByType(String type)
        {
                System.out.println("boms = " + getBoms());

                if(boms != null)
                {
                        for(BOM bom : boms)
                        {
                                //System.out.println("[Material.java]
getBomByType() : " + bom.getType() + " type : " + type);
                                if(bom.getType().equals(type))
                                {
                                        //System.out.println("Before
return bom");
                                        return bom;
                                }
                        }
                }
                else
                {
                        System.out.println("[Material.java] boms is null");
                }
                return null;
        }




}

If I use Lazy Fetch for boms - when calling getBomByType() , the output is :
[Material.java] boms is null




I hv do google search , somebody suggest to use property access ， but
I hv tried that it still does not work.

I am now hv no idea how to continue to debug , eventhough using Eager
does work, but in my case , I hv to use Lazy fetch because is
populating a tree structure ..

Any help is much appreaciated , thanks

cheers,
CG