setHeartColors error

@SubscribeEvent
    public void setHeartColors(RenderGameOverlayEvent overlayEvent) {
        if (overlayEvent.getType().equals(RenderGameOverlayEvent.ElementType.HEALTH)) {
            overlayEvent.setCanceled(true);
            if (maxHealth == 4) {
                Minecraft mc = Minecraft.getInstance();
                mc.getTextureManager().bindTexture(BLUE_HEARTS);
                bind(BLUE_HEARTS);
            }
            if (maxHealth == 6) {
                Minecraft mc = Minecraft.getInstance();
                mc.getTextureManager().bindTexture(GREEN_HEARTS);
                bind(GREEN_HEARTS);
            }
            if (maxHealth == 8) {
                Minecraft mc = Minecraft.getInstance();
                mc.getTextureManager().bindTexture(ORANGE_HEARTS);
                bind(ORANGE_HEARTS);
            }
        }
    }

    private void bind(ResourceLocation res) {
        Minecraft mc = Minecraft.getInstance();
        mc.getTextureManager().bindTexture(res);
    }