From 7e4672a42f33de60f1221638ff190dde2ed17e78 Mon Sep 17 00:00:00 2001
From: Dmitry Batkovich <dmitry.batkovich@jetbrains.com>
Date: Thu, 18 Mar 2021 02:29:17 +0300
Subject: [PATCH] run read-action in smart mode EA-261262

GitOrigin-RevId: a4f3527ea5e9e8b8ccf69363f741ef75dae16e14
---
 .../psi/impl/search/JavaFunctionalExpressionSearcher.java    | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/java/java-indexing-impl/src/com/intellij/psi/impl/search/JavaFunctionalExpressionSearcher.java b/java/java-indexing-impl/src/com/intellij/psi/impl/search/JavaFunctionalExpressionSearcher.java
index b5978353355a..aec34b9a5754 100644
--- a/java/java-indexing-impl/src/com/intellij/psi/impl/search/JavaFunctionalExpressionSearcher.java
+++ b/java/java-indexing-impl/src/com/intellij/psi/impl/search/JavaFunctionalExpressionSearcher.java
@@ -42,6 +42,7 @@ import com.intellij.psi.tree.IElementType;
 import com.intellij.psi.util.InheritanceUtil;
 import com.intellij.psi.util.PsiTreeUtil;
 import com.intellij.psi.util.PsiUtil;
+import com.intellij.psi.util.PsiUtilCore;
 import com.intellij.util.Processor;
 import com.intellij.util.Processors;
 import com.intellij.util.ThreeState;
@@ -71,13 +72,13 @@ public final class JavaFunctionalExpressionSearcher extends QueryExecutorBase<Ps
   @NotNull
   private static List<SamDescriptor> calcDescriptors(@NotNull Session session) {
     List<SamDescriptor> descriptors = new ArrayList<>();
+    Project project = PsiUtilCore.getProjectInReadAction(session.elementToSearch);
 
-    ReadAction.run(() -> {
+    DumbService.getInstance(project).runReadActionInSmartMode(() -> {
       PsiClass aClass = session.elementToSearch;
       if (!aClass.isValid() || !aClass.isInterface()) {
         return;
       }
-      Project project = aClass.getProject();
       if (InjectedLanguageManager.getInstance(project).isInjectedFragment(aClass.getContainingFile()) || !hasJava8Modules(project)) {
         return;
       }