From 5743be208124d0745ba15fe1738fd0f89210cd39 Mon Sep 17 00:00:00 2001
From: Sergey Malenkov <sergey.malenkov@jetbrains.com>
Date: Tue, 9 Oct 2018 15:56:47 +0300
Subject: [PATCH] Add logging for possible INRE during tree modification

---
 .../intellij/ide/util/treeView/AbstractTreeStructureBase.java    | 1 +
 1 file changed, 1 insertion(+)

diff --git a/platform/structure-view-impl/src/com/intellij/ide/util/treeView/AbstractTreeStructureBase.java b/platform/structure-view-impl/src/com/intellij/ide/util/treeView/AbstractTreeStructureBase.java
index 1940100c4234..d05843747902 100644
--- a/platform/structure-view-impl/src/com/intellij/ide/util/treeView/AbstractTreeStructureBase.java
+++ b/platform/structure-view-impl/src/com/intellij/ide/util/treeView/AbstractTreeStructureBase.java
@@ -45,6 +45,7 @@ public abstract class AbstractTreeStructureBase extends AbstractTreeStructure {
           if (elements.stream().anyMatch(Objects::isNull)) LOG.error("provider creates null child: " + provider);
         }
         catch (IndexNotReadyException e) {
+          LOG.debug("TreeStructureProvider.modify requires indices", e);
           throw new ProcessCanceledException(e);
         }
         catch (ProcessCanceledException e) {