output: #fixed code
                                  private List<Node<T, S>> createChildren() {
          List<Node<T, S>> children = new ArrayList<Node<T, S>>(node.childrenLength());
          // reduce allocations by resusing objects
          int numChildren = node.childrenLength();
          for (int i = 0; i < numChildren; i++) {
              Node_ child = node.children(i);
              if (child.childrenLength()>0) {
                  children.add(new NonLeafFlatBuffers<T, S>(child, context, deserializer));
              } else {
                  children.add(new LeafFlatBuffers<T,S>(child, context, deserializer));
              }
          }
          return children;
      }
input: #vulnerable code 
                                  private List<Node<T, S>> createChildren() {
          List<Node<T, S>> children = new ArrayList<Node<T, S>>(node.childrenLength());
          // reduce allocations by resusing objects
          int numChildren = node.childrenLength();
          for (int i = 0; i < numChildren; i++) {
              Node_ child = node.children(i);
              children.add(new NonLeafFlatBuffers<T, S>(child, context, deserializer));
          }
          return children;
      } 
                              #location 7 
                              #vulnerability type NULL_DEREFERENCE