private List<String> getVertexNames() {

		Collection<SampleVertex> vertices = graph.getVertices();
		//@formatter:off
		return vertices
				.stream()
				.map(v -> v.getName())
				.collect(Collectors.toList())
		        ;
		//@formatter:on
	}
A {@link ComponentProvider} that is the UI component of the {@link SampleGraphPlugin}.  This
shows a graph of the plugins in the system.
Ghidra/Extensions/sample/src/main/java/ghidra/examples/graph/SampleGraphProvider.java