--- ../src-base/minecraft/net/minecraftforge/fml/relauncher/SideOnly.java
+++ ../src-work/minecraft/net/minecraftforge/fml/relauncher/SideOnly.java
@@ -1,3 +1,15 @@
+/*
+ * Forge Mod Loader
+ * Copyright (c) 2012-2013 cpw.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Lesser Public License v2.1
+ * which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ *
+ * Contributors:
+ *     cpw - implementation
+ */
+
 package net.minecraftforge.fml.relauncher;
 
 import java.lang.annotation.ElementType;
@@ -5,9 +17,25 @@
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
+import net.minecraftforge.fml.common.SidedProxy;
+
+
+/**
+ * Marks the associated element as being only available on a certain {@link Side}. This is
+ * generally meant for internal Forge and FML use only and should only be used on mod classes
+ * when other more common mechanisms, such as using a {@link SidedProxy} fail to work.
+ *
+ * Note, this will <em>only</em> apply to the direct element marked. This code:
+ * <code> @SideOnly public MyField field = new MyField();</code> will <strong>not</strong> work, as the initializer
+ * is a separate piece of code to the actual field declaration, and will not be able to find
+ * it's field on the wrong side.
+ *
+ * @author cpw
+ *
+ */
 @Retention(RetentionPolicy.RUNTIME)
-@Target( {ElementType.TYPE, ElementType.FIELD, ElementType.METHOD, ElementType.CONSTRUCTOR})
+@Target({ElementType.TYPE, ElementType.FIELD, ElementType.METHOD, ElementType.CONSTRUCTOR})
 public @interface SideOnly
 {
-    Side value();
+    public Side value();
 }