From 096f4ef5c2a1b2ffc1146b08c41ea530a8f38db1 Mon Sep 17 00:00:00 2001
From: "Anna.Kozlova" <anna.kozlova@jetbrains.com>
Date: Wed, 21 Dec 2016 12:45:20 +0100
Subject: [PATCH] logging for (IDEA-165626)

---
 .../com/intellij/util/text/ElementPresentation.java    | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/java/java-impl/src/com/intellij/util/text/ElementPresentation.java b/java/java-impl/src/com/intellij/util/text/ElementPresentation.java
index 513b838b51d9..1a839014c617 100644
--- a/java/java-impl/src/com/intellij/util/text/ElementPresentation.java
+++ b/java/java-impl/src/com/intellij/util/text/ElementPresentation.java
@@ -15,6 +15,7 @@
  */
 package com.intellij.util.text;
 
+import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.psi.*;
 import com.intellij.psi.util.PsiFormatUtil;
@@ -202,6 +203,7 @@ public abstract class ElementPresentation {
   }
 
   private static class ForClass extends ElementPresentation {
+    private static final Logger LOG = Logger.getInstance(ForClass.class);
     private final PsiClass myPsiClass;
 
     public ForClass(PsiClass psiClass) {
@@ -218,7 +220,13 @@ public abstract class ElementPresentation {
     }
 
     public String getComment() {
-      PsiPackage psiPackage = JavaDirectoryService.getInstance().getPackage(myPsiClass.getContainingFile().getContainingDirectory());
+      PsiFile file = myPsiClass.getContainingFile();
+      PsiDirectory dir = file.getContainingDirectory();
+      if (dir == null) {
+        LOG.info("psiClass: " + myPsiClass + "; in file: " + file);
+        return "";
+      }
+      PsiPackage psiPackage = JavaDirectoryService.getInstance().getPackage(dir);
       if (psiPackage == null) return "";
       return forElement(psiPackage).getQualifiedName();
     }