diff --git a/src/main/java/org/bukkit/craftbukkit/util/Java15Compat.java b/src/main/java/org/bukkit/craftbukkit/util/Java15Compat.java
deleted file mode 100644
index c9c5f284df..0000000000
--- a/src/main/java/org/bukkit/craftbukkit/util/Java15Compat.java
+++ /dev/null
@@ -1,34 +0,0 @@
-package org.bukkit.craftbukkit.util;
-
-import java.lang.reflect.Array;
-
-public class Java15Compat {
-    public static <T> T[] Arrays_copyOf(T[] original, int newLength) {
-        if (0 <= newLength) {
-            return org.bukkit.util.Java15Compat.Arrays_copyOfRange(original, 0, newLength);
-        }
-        throw new NegativeArraySizeException();
-    }
-
-    public static long[] Arrays_copyOf(long[] original, int newLength) {
-        if (0 <= newLength) {
-            return Arrays_copyOfRange(original, 0, newLength);
-        }
-        throw new NegativeArraySizeException();
-    }
-
-    private static long[] Arrays_copyOfRange(long[] original, int start, int end) {
-        if (original.length >= start && 0 <= start) {
-            if (start <= end) {
-                int length = end - start;
-                int copyLength = Math.min(length, original.length - start);
-                long[] copy = (long[]) Array.newInstance(original.getClass().getComponentType(), length);
-                System.arraycopy(original, start, copy, 0, copyLength);
-                return copy;
-            }
-            throw new IllegalArgumentException();
-        }
-        throw new ArrayIndexOutOfBoundsException();
-    }
-
-}
diff --git a/src/main/java/org/bukkit/craftbukkit/util/LongHashSet.java b/src/main/java/org/bukkit/craftbukkit/util/LongHashSet.java
index 22c96c5ab5..a213579220 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/LongHashSet.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/LongHashSet.java
@@ -16,6 +16,7 @@
 
 package org.bukkit.craftbukkit.util;
 
+import java.util.Arrays;
 import java.util.Iterator;
 import java.util.ConcurrentModificationException;
 import java.util.NoSuchElementException;
@@ -165,7 +166,7 @@ public class LongHashSet {
 
     public long[] toArray() {
         long[] result = new long[elements];
-        long[] values = Java15Compat.Arrays_copyOf(this.values, this.values.length);
+        long[] values = Arrays.copyOf(this.values, this.values.length);
         int pos = 0;
 
         for (long value : values) {
diff --git a/src/main/java/org/bukkit/craftbukkit/util/LongObjectHashMap.java b/src/main/java/org/bukkit/craftbukkit/util/LongObjectHashMap.java
index 01861ccff8..0cd430a3ad 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/LongObjectHashMap.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/LongObjectHashMap.java
@@ -15,8 +15,6 @@ import java.util.Map;
 import java.util.NoSuchElementException;
 import java.util.Set;
 
-import static org.bukkit.craftbukkit.util.Java15Compat.Arrays_copyOf;
-
 @SuppressWarnings("unchecked")
 public class LongObjectHashMap<V> implements Cloneable, Serializable {
     static final long serialVersionUID = 2841537710170573815L;
@@ -112,9 +110,9 @@ public class LongObjectHashMap<V> implements Cloneable, Serializable {
             }
 
             // chain is full, resize it and add our new entry
-            keys[index] = innerKeys = Arrays_copyOf(innerKeys, i << 1);
+            keys[index] = innerKeys = Arrays.copyOf(innerKeys, i << 1);
             Arrays.fill(innerKeys, i, innerKeys.length, EMPTY_KEY);
-            values[index] = innerValues = Arrays_copyOf(innerValues, i << 1);
+            values[index] = innerValues = Arrays.copyOf(innerValues, i << 1);
             innerKeys[i] = key;
             innerValues[i] = value;
             size++;
diff --git a/src/main/java/org/bukkit/craftbukkit/util/UnsafeList.java b/src/main/java/org/bukkit/craftbukkit/util/UnsafeList.java
index 1351ecd83b..08d105603c 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/UnsafeList.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/UnsafeList.java
@@ -5,6 +5,7 @@ import java.io.ObjectInputStream;
 import java.io.ObjectOutputStream;
 import java.io.Serializable;
 import java.util.AbstractList;
+import java.util.Arrays;
 import java.util.ConcurrentModificationException;
 import java.util.Iterator;
 import java.util.List;
@@ -129,7 +130,7 @@ public class UnsafeList<E> extends AbstractList<E> implements List<E>, RandomAcc
         int old = data.length;
         int rounded = Integer.highestOneBit(size - 1) << 1;
         if (rounded < old) {
-            data = Java15Compat.Arrays_copyOf(data, rounded);
+            data = Arrays.copyOf(data, rounded);
         }
     }
 
@@ -143,7 +144,7 @@ public class UnsafeList<E> extends AbstractList<E> implements List<E>, RandomAcc
 
     public Object clone() throws CloneNotSupportedException {
         UnsafeList<E> copy = (UnsafeList<E>) super.clone();
-        copy.data = Java15Compat.Arrays_copyOf(data, size);
+        copy.data = Arrays.copyOf(data, size);
         copy.size = size;
         copy.initialCapacity = initialCapacity;
         copy.iterPool = new Iterator[1];