Do not try to clone the atom if it does not exist

egonw · Apr 24, 2010 · 9672df0 · 9672df0
1 parent 7b9d84e
commit 9672df0
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/main/org/openscience/cdk/AtomContainer.java b/src/main/org/openscience/cdk/AtomContainer.java
@@ -1612,7 +1612,9 @@ public Object clone() throws CloneNotSupportedException {
 		for (int i = 0; i < getLonePairCount(); ++i) {
 			lp = getLonePair(i);
 			newLp = (ILonePair)lp.clone();
-			newLp.setAtom(clone.getAtom(getAtomNumber(lp.getAtom())));
+			if (lp.getAtom() != null) {
+			    newLp.setAtom(clone.getAtom(getAtomNumber(lp.getAtom())));
+			}
 			clone.addLonePair(newLp);
 		}
 		ISingleElectron se;