Solved NullPointerException on give ItemStack

JRE : JDK 10.0.1
Bukkit versions : 1.8 1.9 1.10 1.11 1.12
Server version : 1.8.8 R0.3

Hello bukkit !
I have an error with the banners:

Code:

java.lang.NullPointerException
        at org.bukkit.craftbukkit.v1_8_R3.inventory.CraftMetaBanner.applyToItem(CraftMetaBanner.java:93) ~[spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.craftbukkit.v1_8_R3.inventory.CraftItemStack.setItemMeta(CraftItemStack.java:404) ~[spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.craftbukkit.v1_8_R3.inventory.CraftItemStack.setItemMeta(CraftItemStack.java:383) ~[spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.craftbukkit.v1_8_R3.inventory.CraftItemStack.<init>(CraftItemStack.java:110) ~[spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.craftbukkit.v1_8_R3.inventory.CraftItemStack.<init>(CraftItemStack.java:114) ~[spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.craftbukkit.v1_8_R3.inventory.CraftItemStack.<init>(CraftItemStack.java:103) ~[spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.craftbukkit.v1_8_R3.inventory.CraftItemStack.asCraftCopy(CraftItemStack.java:82) ~[spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.craftbukkit.v1_8_R3.inventory.CraftInventory.firstPartial(CraftInventory.java:251) ~[spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]
        at org.bukkit.craftbukkit.v1_8_R3.inventory.CraftInventory.addItem(CraftInventory.java:278) ~[spigot-1.8.8.jar:git-Spigot-db6de12-18fbb24]

with this code:

Code (open) Code (close)

Code:

  private static ItemStack registerBanner(String lang) {
     ItemStack item = new ItemStack(Material.BANNER);
     BannerMeta m = (BannerMeta) item.getItemMeta();
     ConfigurationSection banner = fileConfiguration.getConfigurationSection("flag");
     if (banner != null) {
       if (banner.contains("base")) {
         m.setBaseColor(DyeColor.getByColor(banner.getColor("base")));
       } else {
         banner.set("base", DyeColor.WHITE.toString());
       }

       List<Pattern> patterns = new ArrayList<Pattern>();
       for (int i = 1; i <= 7; i++) {
         if (i != 7) {
           if (banner.contains(i + "")) {
             ConfigurationSection cfgs = banner.getConfigurationSection(i + "");
             if (!cfgs.contains("pattern")) {
               cfgs.set("pattern", PatternType.CIRCLE_MIDDLE.toString());
             }
             if (!cfgs.contains("color")) {
               cfgs.set("color", DyeColor.BROWN.toString());
             }
             patterns.add(new Pattern(DyeColor.getByColor(cfgs.getColor("color")),
                 PatternType.valueOf(cfgs.getString("pattern"))));
           } else {
             break;
           }
         } else {
           System.err.println(ANSI_RED + "Banner can't be have more 6 layers !");
         }
       }
       m.setPatterns(patterns);

       m.setDisplayName(ChatColor.translateAlternateColorCodes('&', lang));
       item.setItemMeta(m);
     } else {
       fileConfiguration.createSection("flag");
       banner = fileConfiguration.getConfigurationSection("flag");
       banner.set("base", DyeColor.WHITE.toString());

       ConfigurationSection cfgs1 = banner.createSection(1 + "");
       cfgs1.set("pattern", PatternType.STRIPE_RIGHT.toString());
       cfgs1.set("color", DyeColor.BLUE.toString());

       ConfigurationSection cfgs2 = banner.createSection(2 + "");
       cfgs2.set("pattern", PatternType.STRIPE_LEFT.toString());
       cfgs2.set("color", DyeColor.RED.toString());

       m.setDisplayName(ChatColor.BLUE + "Fra" + ChatColor.WHITE + "nç" + ChatColor.DARK_RED + "ais");
       m.setBaseColor(DyeColor.WHITE);
       List<Pattern> patterns = new ArrayList<Pattern>();
       patterns.add(new Pattern(DyeColor.BLUE, PatternType.STRIPE_LEFT));
       patterns.add(new Pattern(DyeColor.RED, PatternType.STRIPE_RIGHT));
       m.setPatterns(patterns);
       item.setItemMeta(m);
     }
     banners.put(lang, item);
     return item;
   }

PatternType.valueOf(cfgs.getString("pattern")) : return PatternType.STRIPE_RIGHT

Error is not in this code but here :

Code:

    Bukkit.getPlayer("SeaMoon69").getInventory().addItem(registerBanner(file.getName().replace(".yml", "")));

Bukkit : not null
player : not null
inventory : not null

Thanks,
SeaMoon69

 

fileConfiguration can't be null because I use it before

I use now

Code:

public static ItemStack getLangBanner(String language) {
        for (String str : banners.keySet()) {
            System.out.println(str + " | " + banners.get(str));
        }
        return banners.get(language);
    }

to get item
sysout return

Code:

        Bukkit.getPlayerExact("SeaMoon69").getInventory()
        .setItem
        (10,
                getLangBanner("fr_FR"));

error on ".setItem"

 

I found !
Base color is null
I change

Code:

DyeColor.getByColor(banner.getColor("base"))

to

Code:

DyeColor.valueOf(banner.getString("base"))