From fecb75f113aee4da78e12c53fad9ac709d9650e6 Mon Sep 17 00:00:00 2001
From: peter <peter@jetbrains.com>
Date: Mon, 18 Sep 2017 17:41:05 +0200
Subject: [PATCH] more diagnostics for EA-106944 - NPE:
 ContributorsBasedGotoByModel.getElementName

---
 .../ide/util/gotoByName/ContributorsBasedGotoByModel.java       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/platform/lang-impl/src/com/intellij/ide/util/gotoByName/ContributorsBasedGotoByModel.java b/platform/lang-impl/src/com/intellij/ide/util/gotoByName/ContributorsBasedGotoByModel.java
index fe8b1ae4dd3e..210ed5b3de6a 100644
--- a/platform/lang-impl/src/com/intellij/ide/util/gotoByName/ContributorsBasedGotoByModel.java
+++ b/platform/lang-impl/src/com/intellij/ide/util/gotoByName/ContributorsBasedGotoByModel.java
@@ -254,7 +254,7 @@ public abstract class ContributorsBasedGotoByModel implements ChooseByNameModelE
   @Override
   public String getElementName(Object element) {
     if (!(element instanceof NavigationItem)) {
-      throw new AssertionError(element + " of " + element.getClass());
+      throw new AssertionError((element == null ? "null" : element + " of " + element.getClass()) + " in " + this + " of " + getClass());
     }
     return ((NavigationItem)element).getName();
   }