A safe null check in biopaxModel.getOrCreateXref()

metincansiper · Jun 1, 2018 · c1bd877 · c1bd877
1 parent dbc9d8c
commit c1bd877
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/main/java/model/BioPAXModel.java b/src/main/java/model/BioPAXModel.java
@@ -103,6 +103,11 @@ public <T extends PhysicalEntity> T getOrCreatePhysicalEntity(Class<T> c) {
 	}
 
 	public UnificationXref getOrCreateXref(XrefModel xrefModel) {
+
+		if (xrefModel == null) {
+			return null;
+		}
+
 		String xrefId = xrefModel.getId();
 		UnificationXref xref = xrefMap.get(xrefId);