}
for (int i = 0; i < features.length; i++)
{
- if (features[i].getFeatureGroup().equals(pdbid))
+ if (features[i].getFeatureGroup() != null
+ && features[i].getFeatureGroup().equals(pdbid))
{
SequenceFeature tx = new SequenceFeature(features[i]);
tx.setBegin(1 + residues.elementAt(tx.getBegin() - offset).atoms