Try to fix #36 (not tested yet)

MinusKube · MinusKube · commit bf8e76686e22 · 2018-12-21T09:13:29.000+01:00
diff --git a/src/main/java/fr/minuskube/inv/content/InventoryContents.java b/src/main/java/fr/minuskube/inv/content/InventoryContents.java
@@ -234,10 +234,11 @@ public InventoryContents setProperty(String name, Object value) {
         }
 
         private void update(int row, int column, ItemStack item) {
-            Inventory topInventory = player.getOpenInventory().getTopInventory();
+            if(!inv.getManager().getOpenedPlayers(inv).contains(player))
+                return;
 
-            if(topInventory != null)
-                topInventory.setItem(inv.getColumns() * row + column, item);
+            Inventory topInventory = player.getOpenInventory().getTopInventory();
+            topInventory.setItem(inv.getColumns() * row + column, item);
         }
 
     }

Original file line number	Diff line number	Diff line change
`@@ -234,10 +234,11 @@ public InventoryContents setProperty(String name, Object value) {`
`234`	`234`	`}`
`235`	`235`
`236`	`236`	`private void update(int row, int column, ItemStack item) {`
`237`		`- Inventory topInventory = player.getOpenInventory().getTopInventory();`
	`237`	`+ if(!inv.getManager().getOpenedPlayers(inv).contains(player))`
	`238`	`+ return;`
`238`	`239`
`239`		`- if(topInventory != null)`
`240`		`- topInventory.setItem(inv.getColumns() * row + column, item);`
	`240`	`+ Inventory topInventory = player.getOpenInventory().getTopInventory();`
	`241`	`+ topInventory.setItem(inv.getColumns() * row + column, item);`
`241`	`242`	`}`
`242`	`243`
`243`	`244`	`}`