Ferdinandus, Humphrey wrote:

Hello,

Lucene is giving a java.lang.NullPointerException. I have extended builder B from builder A. A is part of the lucene index.

When adding a B node to the database the error occurs.

What could be the problem? The mmbase my editors show node B in the nodelist of A. When selecting node B from the list, it gives me the editor for builder B. This is normal functionality. Could Lucene be confused by extended objects?

I hope I am making sense here…..

BTW: I am using Lucene 1.7.1 and MMBase 1.7.4

Kind regards,

Humphrey

Could you paste the Exception to see what is going wrong. Or you could try the 1.7.9 release from http://sourceforge.net/projects/mmapps/ which has many fixes

Nico

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