From bc162bf6be2d930ea388c7acabc838522ad8a8d3 Mon Sep 17 00:00:00 2001
From: Alexey Kudravtsev <cdr@intellij.com>
Date: Thu, 15 Jun 2017 19:53:47 +0300
Subject: [PATCH] cleanup

---
 .../openapi/vfs/impl/VirtualFileManagerImpl.java      |  7 +------
 .../openapi/vfs/local/CoreLocalVirtualFile.java       | 11 ++++-------
 2 files changed, 5 insertions(+), 13 deletions(-)

diff --git a/platform/core-impl/src/com/intellij/openapi/vfs/impl/VirtualFileManagerImpl.java b/platform/core-impl/src/com/intellij/openapi/vfs/impl/VirtualFileManagerImpl.java
index 92ec34acea4d..e05d8fbe0f09 100644
--- a/platform/core-impl/src/com/intellij/openapi/vfs/impl/VirtualFileManagerImpl.java
+++ b/platform/core-impl/src/com/intellij/openapi/vfs/impl/VirtualFileManagerImpl.java
@@ -178,12 +178,7 @@ public class VirtualFileManagerImpl extends VirtualFileManagerEx {
   @Override
   public void addVirtualFileManagerListener(@NotNull final VirtualFileManagerListener listener, @NotNull Disposable parentDisposable) {
     addVirtualFileManagerListener(listener);
-    Disposer.register(parentDisposable, new Disposable() {
-      @Override
-      public void dispose() {
-        removeVirtualFileManagerListener(listener);
-      }
-    });
+    Disposer.register(parentDisposable, () -> removeVirtualFileManagerListener(listener));
   }
 
   @Override
diff --git a/platform/core-impl/src/com/intellij/openapi/vfs/local/CoreLocalVirtualFile.java b/platform/core-impl/src/com/intellij/openapi/vfs/local/CoreLocalVirtualFile.java
index dc2b22d33775..93949c17ab3b 100644
--- a/platform/core-impl/src/com/intellij/openapi/vfs/local/CoreLocalVirtualFile.java
+++ b/platform/core-impl/src/com/intellij/openapi/vfs/local/CoreLocalVirtualFile.java
@@ -22,8 +22,6 @@ import com.intellij.openapi.vfs.VirtualFileSystem;
 import org.jetbrains.annotations.NotNull;
 
 import java.io.*;
-import java.util.ArrayList;
-import java.util.List;
 
 /**
  * @author yole
@@ -87,16 +85,15 @@ public class CoreLocalVirtualFile extends VirtualFile {
   public VirtualFile[] getChildren() {
     VirtualFile[] answer = myChildren;
     if (answer == null) {
-      List<VirtualFile> result = new ArrayList<>();
       final File[] files = myIoFile.listFiles();
-      if (files == null) {
+      if (files == null || files.length == 0) {
         answer = EMPTY_ARRAY;
       }
       else {
-        for (File file : files) {
-          result.add(new CoreLocalVirtualFile(myFileSystem, file));
+        answer = new VirtualFile[files.length];
+        for (int i = 0; i < files.length; i++) {
+          answer[i] = new CoreLocalVirtualFile(myFileSystem, files[i]);
         }
-        answer = result.toArray(new VirtualFile[result.size()]);
       }
       myChildren = answer;
     }