From d0e90f5192024dbc77c1be0cf41c4c33c4cf2f92 Mon Sep 17 00:00:00 2001
From: peter <peter@jetbrains.com>
Date: Wed, 6 Sep 2017 16:16:38 +0200
Subject: [PATCH] IDEA-178584 IDEA hangs when displaying File History in
 Perforce

---
 .../com/intellij/openapi/vcs/history/FileHistoryPanelImpl.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/platform/vcs-impl/src/com/intellij/openapi/vcs/history/FileHistoryPanelImpl.java b/platform/vcs-impl/src/com/intellij/openapi/vcs/history/FileHistoryPanelImpl.java
index 634b90c7cde8..55cd2069b331 100644
--- a/platform/vcs-impl/src/com/intellij/openapi/vcs/history/FileHistoryPanelImpl.java
+++ b/platform/vcs-impl/src/com/intellij/openapi/vcs/history/FileHistoryPanelImpl.java
@@ -657,7 +657,8 @@ public class FileHistoryPanelImpl extends PanelWithActionsAndCloseButton impleme
     }
 
     @Override
-    public TableCellRenderer getCustomizedRenderer(@NotNull TreeNodeOnVcsRevision revision, @NotNull TableCellRenderer renderer) {
+    public TableCellRenderer getCustomizedRenderer(TreeNodeOnVcsRevision revision, TableCellRenderer renderer) {
+      if (renderer == null) return null;
       if (renderer instanceof BaseHistoryCellRenderer) {
         ((BaseHistoryCellRenderer)renderer).setCurrentRevision(isCurrentRevision(revision));
       } else {