API

Listeners

TreeCutEvent

public class TreeCutListener implements Listener {

    @EventHandler
    public void onTreeCut(TreeCutEvent e) {
        //player triggered event
        Player p = e.getPlayer();

        //block to cut
        List<Block> blocks = e.getBlocks();

        //can be canceled
        e.setCancelled(true);
    }
}

TreeGlowEvent

public class TreeGlowListener implements Listener {

    @EventHandler
    public void onTreeCut(TreeGlowEvent e) {
        //player triggered event
        Player p = e.getPlayer();

        //block to glow
        List<Block> blocks = e.getBlocks();

        //can be canceled
        e.setCancelled(true);
    }
}

Don't forget to register listeners!

@Override
public void onEnable() {
    PluginManager pluginManager = getServer().getPluginManager();
    
    pluginManager.registerEvents(new TreeGlowListener(), this);
    pluginManager.registerEvents(new TreeCutListener(), this);
}