From da4cb7c71680fbc307eb3b1e779341f16e05edab Mon Sep 17 00:00:00 2001
From: Hanmac <hanmac@cardforge.org>
Date: Tue, 19 Jul 2016 06:32:47 +0000
Subject: [PATCH] ItemListView: return empty string instead of null to prevent
 the Tooltip from crashing

---
 .../java/forge/itemmanager/views/ItemListView.java     | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/forge-gui-desktop/src/main/java/forge/itemmanager/views/ItemListView.java b/forge-gui-desktop/src/main/java/forge/itemmanager/views/ItemListView.java
index ad5251d56dc..5e83c87bab5 100644
--- a/forge-gui-desktop/src/main/java/forge/itemmanager/views/ItemListView.java
+++ b/forge-gui-desktop/src/main/java/forge/itemmanager/views/ItemListView.java
@@ -493,9 +493,9 @@ public final class ItemListView<T extends InventoryItem> extends ItemView<T> {
 
             // if we're conditionally showing the tooltip, check to see
             // if we shouldn't show it
-            if (val == null) { return null; }
+            if (val == null) { return ""; }
             final String text = val.toString();
-            if (text.isEmpty()) { return null; }
+            if (text.isEmpty()) { return ""; }
 
             if (!(renderer instanceof ItemCellRenderer) || !((ItemCellRenderer)renderer).alwaysShowTooltip()) {
                 // if there's enough room (or there's no value), no tooltip
@@ -505,7 +505,7 @@ public final class ItemListView<T extends InventoryItem> extends ItemView<T> {
                 final int requiredWidth = cell.getPreferredSize().width;
                 final TableColumn tableColumn = this.getColumnModel().getColumn(col);
                 if (tableColumn.getWidth() > requiredWidth) {
-                    return null;
+                    return "";
                 }
             }
 
@@ -520,12 +520,12 @@ public final class ItemListView<T extends InventoryItem> extends ItemView<T> {
             final int col = columnAtPoint(p);
 
             if (col >= getColumnCount() || row >= getRowCount()) {
-                return null;
+                return "";
             }
 
             final Object val = getValueAt(row, col);
             if (val == null) {
-                return null;
+                return "";
             }
 
             return getCellTooltip(getCellRenderer(row, col), row, col, val);