I just released mapjfx versions 1.21.0 and 2.2.0, they will be available in maven central:
<dependency> <groupId>com.sothawo</groupId> <artifactId>mapjfx</artifactId> <version>1.21.0</version> </dependency>
<dependency> <groupId>com.sothawo</groupId> <artifactId>mapjfx</artifactId> <version>2.2.0</version> </dependency>
Now it is possible to close CoordinateLines to polygons with a fill color:
Comments and contributions welcome.