- *
- * @param aEdge Edge to add.
- *
- * @throws IllegalArgumentException In case one of the nodes of the edges
- * is not part of the graph or if the same edge (as determined by
- * {@link #equals(Object)} is already a part of the graph.
+ *
+ * @param aEdge
+ * Edge to add.
+ *
+ * @throws IllegalArgumentException
+ * In case one of the nodes of the edges is not part of the
+ * graph or if the same edge (as determined by
+ * {@link #equals(Object)} is already a part of the graph.