--- /home/matt/mc-dev-private//net/minecraft/server/EntityPainting.java	2015-02-26 22:40:22.643608139 +0000
+++ src/main/java/net/minecraft/server/EntityPainting.java	2015-02-26 22:40:22.647608139 +0000
@@ -9,6 +9,7 @@
 
     public EntityPainting(World world) {
         super(world);
+        this.art = EnumArt.values()[this.random.nextInt(EnumArt.values().length)]; // CraftBukkit - generate a non-null painting
     }
 
     public EntityPainting(World world, BlockPosition blockposition, EnumDirection enumdirection) {