Get rid of lombok

core/src/main/java/de/epiceric/shopchest/util/ItemUtil.java

@@ -2,10 +2,9 @@ package de.epiceric.shopchest.util;
 
 import org.bukkit.inventory.ItemStack;
 
-import lombok.experimental.UtilityClass;
-
-@UtilityClass
 public class ItemUtil {
+    private ItemUtil() {
+    }
 
     /**
      * Gets whether the given item stacks are equal not considering their amount
@@ -14,7 +13,7 @@ public class ItemUtil {
      * @param itemStack2 the other item stack
      * @return whether the item stacks are equal
      */
-    public boolean isEqual(ItemStack itemStack1, ItemStack itemStack2) {
+    public static boolean isEqual(ItemStack itemStack1, ItemStack itemStack2) {
         if (itemStack1 == null || itemStack2 == null) {
             return false;
         }
@@ -23,5 +22,4 @@ public class ItemUtil {
 
         return itemStack1.isSimilar(itemStack2);
     }
-
 }

core/src/main/java/de/epiceric/shopchest/util/Logger.java

@@ -2,37 +2,37 @@ package de.epiceric.shopchest.util;
 
 import java.util.logging.Level;
 
-import lombok.experimental.UtilityClass;
-
-@UtilityClass
 public class Logger {
     private static final java.util.logging.Logger LOGGER = java.util.logging.Logger.getLogger("ShopChest");
 
-    public void info(String message, Object... args) {
+    private Logger() {
+    }
+
+    public static void info(String message, Object... args) {
         log(Level.INFO, message, args);
     }
 
-    public void info(Throwable throwable) {
+    public static void info(Throwable throwable) {
         log(Level.INFO, throwable);
     }
     
-    public void warning(String message, Object... args) {
+    public static void warning(String message, Object... args) {
         log(Level.WARNING, message, args);
     }
 
-    public void warning(Throwable throwable) {
+    public static void warning(Throwable throwable) {
         log(Level.WARNING, throwable);
     }
 
-    public void severe(String message, Object... args) {
+    public static void severe(String message, Object... args) {
         log(Level.SEVERE, message, args);
     }
 
-    public void severe(Throwable throwable) {
+    public static void severe(Throwable throwable) {
         log(Level.SEVERE, throwable);
     }
 
-    public void log(Level logLevel, String message, Object... args) {
+    public static void log(Level logLevel, String message, Object... args) {
         if (args.length > 0) {
             LOGGER.log(logLevel, message, args);
         } else {
@@ -40,7 +40,7 @@ public class Logger {
         }
     }
 
-    public void log(Level logLevel, Throwable throwable) {
+    public static void log(Level logLevel, Throwable throwable) {
         LOGGER.log(logLevel, throwable.getMessage(), throwable);
     }
 }

core/src/main/java/de/epiceric/shopchest/util/NmsUtil.java

@@ -6,10 +6,9 @@ import java.util.concurrent.atomic.AtomicInteger;
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
 
-import lombok.experimental.UtilityClass;
-
-@UtilityClass
 public class NmsUtil {
+    private NmsUtil() {
+    }
 
     /**
      * Gets the current server version with revision number
@@ -18,7 +17,7 @@ public class NmsUtil {
      * 
      * @return the server version
      */
-    public String getServerVersion() {
+    public static String getServerVersion() {
         String packageName = Bukkit.getServer().getClass().getPackage().getName();
         return packageName.substring(packageName.lastIndexOf('.') + 1);
     }
@@ -30,7 +29,7 @@ public class NmsUtil {
      * 
      * @return the revision
      */
-    public int getRevision() {
+    public static int getRevision() {
         String version = getServerVersion();
         return Integer.parseInt(version.substring(version.length() - 1));
     }
@@ -40,7 +39,7 @@ public class NmsUtil {
      * <p>
      * (e.g. 9 for v1_9_R2, 10 for v1_10_R1)
      */
-    public int getMajorVersion() {
+    public static int getMajorVersion() {
         return Integer.parseInt(getServerVersion().split("_")[1]);
     }
 
@@ -50,7 +49,7 @@ public class NmsUtil {
      * @param className the name of the class
      * @return the class or {@code null} if it was not found
      */
-    public Class<?> getNmsClass(String className) {
+    public static Class<?> getNmsClass(String className) {
         try {
             return Class.forName("net.minecraft.server." + getServerVersion() + "." + className);
         } catch (ClassNotFoundException e) {
@@ -64,7 +63,7 @@ public class NmsUtil {
      * @param className the name of the class
      * @return the class or {@code null} if it was not found
      */
-    public Class<?> getCraftClass(String className) {
+    public static Class<?> getCraftClass(String className) {
         try {
             return Class.forName("org.bukkit.craftbukkit." + getServerVersion() + "." + className);
         } catch (ClassNotFoundException e) {
@@ -102,7 +101,7 @@ public class NmsUtil {
      * @param player the player to whom the packet should be sent
      * @return whether the packet has successfully been sent
      */
-    public boolean sendPacket(Object packet, Player player) {
+    public static boolean sendPacket(Object packet, Player player) {
         try {
             if (packet == null) {
                 Logger.severe("Failed to send packet to {0}: Packet is null", player.getName());
@@ -134,7 +133,7 @@ public class NmsUtil {
      * @param player the player
      * @param jsonMessage the JSON message
      */
-    public void sendJsonMessage(Player player, String jsonMessage) {
+    public static void sendJsonMessage(Player player, String jsonMessage) {
         try {
             Class<?> chatSerializerClass = getServerVersion().equals("v1_8_R1")
                     ? getNmsClass("ChatSerializer")