From db2a341ef0fb4a8fbe23474dc291ebc735803f24 Mon Sep 17 00:00:00 2001
From: Anna Kozlova <anna.kozlova@jetbrains.com>
Date: Thu, 4 May 2017 20:26:33 +0300
Subject: [PATCH] implementations search: disable optimization if scope
 contains non-java files (IDEA-172292)

---
 .../psi/impl/search/JavaOverridingMethodsSearcher.java       | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/java/java-indexing-impl/src/com/intellij/psi/impl/search/JavaOverridingMethodsSearcher.java b/java/java-indexing-impl/src/com/intellij/psi/impl/search/JavaOverridingMethodsSearcher.java
index e30271f32dd2..6a1200c75ba7 100644
--- a/java/java-indexing-impl/src/com/intellij/psi/impl/search/JavaOverridingMethodsSearcher.java
+++ b/java/java-indexing-impl/src/com/intellij/psi/impl/search/JavaOverridingMethodsSearcher.java
@@ -15,6 +15,7 @@
  */
 package com.intellij.psi.impl.search;
 
+import com.intellij.ide.highlighter.JavaFileType;
 import com.intellij.openapi.application.Application;
 import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.application.ReadAction;
@@ -37,6 +38,7 @@ import com.intellij.util.QueryExecutor;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.LinkedHashSet;
 
@@ -51,7 +53,8 @@ public class JavaOverridingMethodsSearcher implements QueryExecutor<PsiMethod, O
     Project project = ReadAction.compute(method::getProject);
     final SearchScope searchScope = parameters.getScope();
 
-    if (searchScope instanceof LocalSearchScope) {
+    if (searchScope instanceof LocalSearchScope &&
+        Arrays.stream(((LocalSearchScope)searchScope).getVirtualFiles()).allMatch(file -> file.getFileType() == JavaFileType.INSTANCE)) {
       return processLocalScope((LocalSearchScope)searchScope, method, project, consumer);
     }