Urge stupid null hydrogen count!

johnmay · johnmay · commit 9b4a75d6aab5 · 2019-02-01T12:11:56.000Z
diff --git a/base/atomtype/src/main/java/org/openscience/cdk/atomtype/EStateAtomTypeMatcher.java b/base/atomtype/src/main/java/org/openscience/cdk/atomtype/EStateAtomTypeMatcher.java
@@ -63,7 +63,8 @@ public IAtomType findMatchingAtomType(IAtomContainer atomContainer, IAtom atom)
         IAtomType atomType = null;
         try {
             String fragment = "";
-            int NumHAtoms = atom.getImplicitHydrogenCount();
+            int NumHAtoms = atom.getImplicitHydrogenCount() != null ?
+                            atom.getImplicitHydrogenCount() : 0;
             int NumSingleBonds2 = NumHAtoms;
             int NumDoubleBonds2 = 0;
             int NumTripleBonds2 = 0;
