From 49aa6f0a74bff5813b0cbd8acbc8161ff28a10ef Mon Sep 17 00:00:00 2001
From: Anna Kozlova <anna.kozlova@jetbrains.com>
Date: Mon, 28 May 2012 14:15:09 +0400
Subject: [PATCH] EA-36065 - IAE:
 ExternalAnnotationsManagerImpl.findExternalAnnotation

---
 .../src/com/intellij/codeInsight/NullableNotNullManager.java     | 1 +
 1 file changed, 1 insertion(+)

diff --git a/java/openapi/src/com/intellij/codeInsight/NullableNotNullManager.java b/java/openapi/src/com/intellij/codeInsight/NullableNotNullManager.java
index ab1324b1f0a2..85c3adb9009d 100644
--- a/java/openapi/src/com/intellij/codeInsight/NullableNotNullManager.java
+++ b/java/openapi/src/com/intellij/codeInsight/NullableNotNullManager.java
@@ -65,6 +65,7 @@ public class NullableNotNullManager implements PersistentStateComponent<Element>
 
   private static void addAllIfNotPresent(Collection<String> collection, String... annotations) {
     for (String annotation : annotations) {
+      LOG.assertTrue(annotation != null);
       if (!collection.contains(annotation)) {
         collection.add(annotation);
       }