what the hell just happened here?

domainManager/src/code/Domain.java

@@ -151,13 +151,12 @@ public class Domain {
 			}
 			else continue;
 
-			if(a != null)
-				try {
-					// inserimento moduli debian9, Arduino1
-					DBC.fillModules(a, b, s1[i]);
-				} catch (SQLException | JSONException e) {
-					e.printStackTrace();
-				}
+			try {
+				// inserimento moduli debian9, Arduino1
+				DBC.fillModules(a, b, s1[i]);
+			} catch (SQLException | JSONException e) {
+				e.printStackTrace();
+			}
 		}
 	}
 }
\ No newline at end of file