Koboo

import java.util.Optional;
import java.util.function.Consumer;

@SuppressWarnings("all")
public class SwitchClass {

    static public <T> void cswitch(Object object, Consumer... consumers) {
        for (Consumer consumer : consumers) {
            consumer.accept(object);

Koboo

import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;

public class GenericClass<T> {

    public GenericClass() {
        Type superclass = this.getClass().getGenericSuperclass();
        Type genericClass = ((ParameterizedType) superclass).getActualTypeArguments()[0];
    }

Koboo

    @EventHandler(priority = EventPriority.HIGHEST)
    public void onMove(PlayerMoveEvent event) {

        Location from = event.getFrom();
        Location to = event.getTo();

        if(!from.getWorld().getName().equalsIgnoreCase(to.getWorld().getName())) {
            return;
        }