AE2 First Commit, the dawn of 1.7 hast arrived.

util/ReadOnlyCollection.java

@@ -0,0 +1,41 @@
+package appeng.util;
+
+import java.util.Collection;
+import java.util.Iterator;
+
+import appeng.api.util.IReadOnlyCollection;
+
+public class ReadOnlyCollection<T> implements IReadOnlyCollection<T>
+{
+
+	private final Collection<T> c;
+
+	public ReadOnlyCollection(Collection<T> in) {
+		c = in;
+	}
+
+	@Override
+	public Iterator iterator()
+	{
+		return c.iterator();
+	}
+
+	@Override
+	public int size()
+	{
+		return c.size();
+	}
+
+	@Override
+	public boolean isEmpty()
+	{
+		return c.isEmpty();
+	}
+
+	@Override
+	public boolean contains(Object node)
+	{
+		return c.contains( node );
+	}
+
+}