I just released mapjfx version 1.7.0 it can be found at maven central, the artifact coordinates are:
<dependency> <groupId>com.sothawo</groupId> <artifactId>mapjfx</artifactId> <version>1.7.0</version> </dependency>
The source is available at GitHub.
The library can now use a directory to cache the downloaded map images for later speedup and offline use. Detailed information can be found here.
Comments and contributions welcome.