I'm unable to run any of the Jung examples that set or change the Vertex (or other Transformers). I receive the following error:
The method setVertexFillPaintTransformer(Function) in the type RenderContext is not applicable for the arguments (Transformer<String,Paint>)
The sample code:
vv.getRenderContext().setVertexFillPaintTransformer(vertexPaint);
where vertexPaint is
Transformer<String,Paint> vertexPaint = new Transformer<String,Paint>() {
public Paint transform(String b) {
return Color.orange;
}
};
It looks like you're using version 2.1.* of the JUNG libraries (which uses the Guava types in place of the old common-collections-generics types such as Transformer: https://github.com/jrtom/jung/releases), but using an older version of the sample code.
If you use the version of the sample code that comes with 2.1.1, you should be fine.