Replace with array initializer

this can be done through http://docs.oracle.com/javase/specs/jls/se6/html/arrays.html#10.6

src/main/java/appeng/parts/layers/InvLayerData.java

@@ -31,7 +31,7 @@ public class InvLayerData
 {
 
 	// a simple empty array for empty stuff..
-	private static final int[] NULL_SIDES = new int[] {};
+	private static final int[] NULL_SIDES = {};
 
 	// cache of inventory state.
 	private final int[][] sides;