From bf5ab3c8d7a4c30fd7294261056f04ee10288297 Mon Sep 17 00:00:00 2001
From: Sergey Malenkov <sergey.malenkov@jetbrains.com>
Date: Fri, 29 Dec 2017 14:29:36 +0300
Subject: [PATCH] fix NPE while searching in empty JBIterable

---
 .../projectView/impl/nodes/ProjectViewDirectoryHelper.java    | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/platform/lang-impl/src/com/intellij/ide/projectView/impl/nodes/ProjectViewDirectoryHelper.java b/platform/lang-impl/src/com/intellij/ide/projectView/impl/nodes/ProjectViewDirectoryHelper.java
index 55f2e50bf77d..6964f0a7d18b 100644
--- a/platform/lang-impl/src/com/intellij/ide/projectView/impl/nodes/ProjectViewDirectoryHelper.java
+++ b/platform/lang-impl/src/com/intellij/ide/projectView/impl/nodes/ProjectViewDirectoryHelper.java
@@ -146,10 +146,10 @@ public class ProjectViewDirectoryHelper {
       if (settings == null) return false; // unexpected
       if (!settings.isFlattenPackages() && settings.isHideEmptyMiddlePackages()) {
         if (element instanceof PsiDirectory) {
-          if (getParents(directory, owner).first(dir -> Comparing.equal(element, dir)) != null) return true;
+          if (getParents(directory, owner).find(dir -> Comparing.equal(element, dir)) != null) return true;
         }
         else if (element instanceof VirtualFile) {
-          if (getParents(directory, owner).first(dir -> Comparing.equal(element, dir.getVirtualFile())) != null) return true;
+          if (getParents(directory, owner).find(dir -> Comparing.equal(element, dir.getVirtualFile())) != null) return true;
         }
       }
     }