jmine
Yet another minesweeper clone written in Java. Mimics the behavior of classic Windows 95 - Windows XP minesweepers. Difficulty level can be selected by right clicking the new game button.
Development
Project is targeted at Java 1.8 but you can modify build.gradle to build on any other JDK version.
Building is simply ./gradlew build or gradlew.bat build. Resulting jar will appear in build/libs.
Customization
Images can be replaced and element positions can be modified to some degree. Check out src/main/resources for an example. I'm not sure about legal status of classic sprites so they're not included here (but here is a link for those who prefer classic look). Default theme is made from scratch and available to anyone under CC0.