thechiselgroup/biomixer — comment on commit 22076e3b771a31afbfe639c14690fbde5207dca6
File: jretest/org/thechiselgroup/biomixer/client/visualization_component/graph/layouts/StubGraphStructure.java line 16
By lgrammel:

Just keeping the nodeitems and the arcitems as fields is sufficient. The nodes and arcs can be accessed through them. This is a kind of code duplication since you duplicate the list structure :-)