I import a lot of vrml-models in my app. To avoid multiple loading, I
perform a cloneTree on the BranchGroup, i get from the vrml-loader, if i
need one object at multiple places.
Everything works fine with the vrml97-Loader, as long as no lights are
defined in the vrml-file.
If lights are defined, the following exception is thrown:


java.lang.NullPointerException:

 at javax.media.j3d.Traverser.traverse(Traverser.java:1797)

 at javax.media.j3d.Traverser.traverse(Traverser.java:978)

...and so on

What am i doing wrong?


thanks for your help,

Chris

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