Performance update to remove several very high counts of temp object creation

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

@@ -0,0 +1,8 @@
+package org.bukkit.craftbukkit.util;
+
+public  class EntryBase {
+    protected long key;
+    public EntryBase(long key) {
+        this.key = key;
+    }
+}