BauSystem_API/src/de/steamwar/bausystem/SWUtils.java

@@ -29,6 +29,9 @@ import java.util.List;
 public class SWUtils {
 
     public static void giveItemToPlayer(Player player, ItemStack itemStack) {
+        if (itemStack == null || itemStack.getType() == Material.AIR) {
+            return;
+        }
         for (int i = 0; i < player.getInventory().getSize(); i++) {
             ItemStack current = player.getInventory().getItem(i);
             if (current != null && current.isSimilar(itemStack)) {

BauSystem_Main/src/de/steamwar/bausystem/world/ItemFrameListener.java

@@ -19,6 +19,7 @@
 
 package de.steamwar.bausystem.world;
 
+import de.steamwar.bausystem.SWUtils;
 import org.bukkit.entity.ItemFrame;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
@@ -36,7 +37,9 @@ public class ItemFrameListener implements Listener {
             return;
         }
         event.setCancelled(true);
-        event.getEntity().remove();
+        ItemFrame itemFrame = (ItemFrame) event.getEntity();
+        SWUtils.giveItemToPlayer((Player) event.getDamager(), itemFrame.getItem());
+        itemFrame.remove();
     }
 
 }