From dec19e47de68cd53f9f9fde5919fefe59ffa4b5a Mon Sep 17 00:00:00 2001
From: Anna Kozlova <anna.kozlova@jetbrains.com>
Date: Wed, 30 May 2012 18:44:00 +0400
Subject: [PATCH] hide incompatible language level for library sources

---
 .../codeInsight/daemon/impl/analysis/HighlightUtil.java         | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/java/java-impl/src/com/intellij/codeInsight/daemon/impl/analysis/HighlightUtil.java b/java/java-impl/src/com/intellij/codeInsight/daemon/impl/analysis/HighlightUtil.java
index 6c4bec73d2f4..46797889641c 100644
--- a/java/java-impl/src/com/intellij/codeInsight/daemon/impl/analysis/HighlightUtil.java
+++ b/java/java-impl/src/com/intellij/codeInsight/daemon/impl/analysis/HighlightUtil.java
@@ -2545,7 +2545,7 @@ public class HighlightUtil {
 
   @Nullable
   private static HighlightInfo checkFeature(@Nullable final PsiElement element, @NotNull final Feature feature) {
-    if (element != null && !PsiUtil.getLanguageLevel(element).isAtLeast(feature.level)) {
+    if (element != null && element.getManager().isInProject(element) && !PsiUtil.getLanguageLevel(element).isAtLeast(feature.level)) {
       final String message = JavaErrorMessages.message("insufficient.language.level", JavaErrorMessages.message(feature.key));
       final HighlightInfo info = HighlightInfo.createHighlightInfo(HighlightInfoType.ERROR, element, message);
       QuickFixAction.registerQuickFixAction(info, new IncreaseLanguageLevelFix(feature.level));