Don’t add null stereo elements (unspecified) to the container.

Signed-off-by: Stephan Beisken <sbeisken@gmail.com> Signed-off-by: Egon Willighagen <egonw@users.sourceforge.net>
cdk · Dec 18, 2013 · 6716abb · 6716abb
1 parent 9c6fef2
commit 6716abb
Showing 1 changed file with 8 additions and 3 deletions.
diff --git a/src/main/org/openscience/cdk/stereo/StereoElementFactory.java b/src/main/org/openscience/cdk/stereo/StereoElementFactory.java
@@ -110,14 +110,19 @@ public List<IStereoElement> createAll() {
                 case Tricoordinate:
                     for (int w : graph[v]) {
                         if (w > v && bondMap.get(v, w).getOrder() == IBond.Order.DOUBLE) {
-                            if (centers.isStereocenter(w))
-                                elements.add(createGeometric(v, w));
+                            if (centers.isStereocenter(w)) {
+                                IStereoElement element = createGeometric(v, w);
+                                if (element != null) 
+                                    elements.add(element);
+                            }
                             break;
                         }
                     }
                     break;
                 case Tetracoordinate:
-                    elements.add(createTetrahedral(v));
+                    IStereoElement element = createTetrahedral(v);
+                    if (element != null)
+                        elements.add(element);
                     break;
             }
         }