Java 1.5 compat.

src/main/java/org/bukkit/craftbukkit/util/Java15Compat.java

@@ -0,0 +1,34 @@
+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();
+    }
+
+}