src/main/java/org/intellimate/izou/sdk/frameworks/music/player/template/CommandHandler.java
public void setJumpProgressController(Consumer<Progress> controller) {
        if (controller == null)
            return;
        jumpProgress = controller;
        capabilities.setAbleToJump(true);
    }
public void setJumpProgressController(Consumer<Progress> controller) {
        if (controller == null)
            return;
        jumpProgress = controller;
        capabilities.setAbleToJump(true);
    }
adds the ability to jump to a specified position of the current track
@param controller  the controller for callback