From b30e07ba07182dcaa0e2369baad9d70495d11710 Mon Sep 17 00:00:00 2001
From: anna <Anna.Kozlova@jetbrains.com>
Date: Mon, 27 Feb 2012 11:27:44 +0100
Subject: [PATCH] EA-31300 - assert: PsiReferenceExpressionImpl.multiResolve

---
 .../src/com/intellij/lang/java/JavaDocumentationProvider.java    | 1 +
 .../com/intellij/codeInsight/navigation/CtrlMouseHandler.java    | 1 +
 2 files changed, 2 insertions(+)

diff --git a/java/java-impl/src/com/intellij/lang/java/JavaDocumentationProvider.java b/java/java-impl/src/com/intellij/lang/java/JavaDocumentationProvider.java
index 84a92d657add..5529ed6c5332 100644
--- a/java/java-impl/src/com/intellij/lang/java/JavaDocumentationProvider.java
+++ b/java/java-impl/src/com/intellij/lang/java/JavaDocumentationProvider.java
@@ -96,6 +96,7 @@ public class JavaDocumentationProvider implements CodeDocumentationProvider, Ext
   private static PsiSubstitutor calcSubstitutor(PsiElement originalElement) {
     PsiSubstitutor substitutor = PsiSubstitutor.EMPTY;
     if (originalElement instanceof PsiReferenceExpression) {
+      LOG.assertTrue(originalElement.isValid());
       substitutor = ((PsiReferenceExpression)originalElement).advancedResolve(true).getSubstitutor();
     }
     return substitutor;
diff --git a/platform/lang-impl/src/com/intellij/codeInsight/navigation/CtrlMouseHandler.java b/platform/lang-impl/src/com/intellij/codeInsight/navigation/CtrlMouseHandler.java
index 687237bff1a1..5679e3dd43ab 100644
--- a/platform/lang-impl/src/com/intellij/codeInsight/navigation/CtrlMouseHandler.java
+++ b/platform/lang-impl/src/com/intellij/codeInsight/navigation/CtrlMouseHandler.java
@@ -352,6 +352,7 @@ public class CtrlMouseHandler extends AbstractProjectComponent {
 
     public boolean isValid(Document document) {
       if (!myTargetElement.isValid()) return false;
+      if (!myElementAtPointer.isValid()) return false;
       if (myTargetElement == myElementAtPointer || myTargetElement == myElementAtPointer.getParent()) return false;
 
       return rangesAreCorrect(document);