From 5795829257f25d1ce6ed5538fa398fc3f4ea4c20 Mon Sep 17 00:00:00 2001
From: Nadya Zabrodina <Nadya.Zabrodina@jetbrains.com>
Date: Wed, 19 Oct 2016 14:51:35 +0300
Subject: [PATCH] [hg]: return copy of ignored files to be thread safe,
 optimize size

---
 .../zmlx/hg4idea/provider/HgLocalIgnoredHolder.java    | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/plugins/hg4idea/src/org/zmlx/hg4idea/provider/HgLocalIgnoredHolder.java b/plugins/hg4idea/src/org/zmlx/hg4idea/provider/HgLocalIgnoredHolder.java
index f1793a3213a1..c776c7756a38 100644
--- a/plugins/hg4idea/src/org/zmlx/hg4idea/provider/HgLocalIgnoredHolder.java
+++ b/plugins/hg4idea/src/org/zmlx/hg4idea/provider/HgLocalIgnoredHolder.java
@@ -153,7 +153,7 @@ public class HgLocalIgnoredHolder implements Disposable {
   public Set<VirtualFile> getIgnoredFiles() {
     try {
       SET_LOCK.readLock().lock();
-      return myIgnoredSet;
+      return ContainerUtil.newHashSet(myIgnoredSet);
     }
     finally {
       SET_LOCK.readLock().unlock();
@@ -173,6 +173,12 @@ public class HgLocalIgnoredHolder implements Disposable {
   }
 
   public int getSize() {
-    return getIgnoredFiles().size();
+    try {
+      SET_LOCK.readLock().lock();
+      return myIgnoredSet.size();
+    }
+    finally {
+      SET_LOCK.readLock().unlock();
+    }
   }
 }