A simple Java Swing application that renders a Sankey (flow) diagram using JFreeChart’s FlowPlot.

• Java Swing application with an embedded Sankey chart
• Uses FlowPlot from JFreeChart
• Automatically generated color palette using HSB color space
• Example dataset showing a multi-step resource flow
• Clean, well-structured code suitable for extension

Add the following to your pom.xml:

<dependency>
    <groupId>org.jfree</groupId>
    <artifactId>jfreechart</artifactId>
    <version>1.5.4</version>
</dependency>