Particles.java

public interface Particles {
    static Particles LT9 = new ParticlesLT9();
  
    static Particles GE9 = new ParticlesGE9();
  
    void summonParticles(Player p, String particles);
  
    private static Particles getParticles() {
      return getVersionNumber() < 9 ? LE9 : GE9;
    }
  
    static void summonParticles(Player p, String particles) {
      getParticles().summonParticles(p, particles);
    }
}

ParticlesGE9.java

public class ParticlesGE9 implements Particles {
    @Override
    public void summonParticles(Player p, String particles) {
         p.spawnParticle(XParticle.getParticle(particles), p.getLocation(), 20, 2D, 2D, 2D, 0.2D);
    }
}

ParticlesLT9.java

public class ParticlesLT9 implements Particles {
    @Override
    public void summonParticles(Player p, String particles) {
        ParticleEffect.fromName(particles).display(2F, 2F, 2F, 0.2F, 25, p.getLocation(), 12D);
    }
}