diff --git a/platform/vcs-log/impl/src/com/intellij/vcs/log/util/PersistentUtil.java b/platform/vcs-log/impl/src/com/intellij/vcs/log/util/PersistentUtil.java
index 94342751223c..407c77cce7c6 100644
--- a/platform/vcs-log/impl/src/com/intellij/vcs/log/util/PersistentUtil.java
+++ b/platform/vcs-log/impl/src/com/intellij/vcs/log/util/PersistentUtil.java
@@ -27,6 +27,7 @@ import org.jetbrains.annotations.NotNull;
 
 import java.io.File;
 import java.io.IOException;
+import java.util.Comparator;
 import java.util.List;
 import java.util.Map;
 
@@ -40,7 +41,7 @@ public class PersistentUtil {
   }
 
   private static int calcLogProvidersHash(@NotNull final Map<VirtualFile, VcsLogProvider> logProviders) {
-    List<VirtualFile> sortedRoots = ContainerUtil.sorted(logProviders.keySet(), (o1, o2) -> o1.getPath().compareTo(o2.getPath()));
+    List<VirtualFile> sortedRoots = ContainerUtil.sorted(logProviders.keySet(), Comparator.comparing(VirtualFile::getPath));
     return StringUtil.join(sortedRoots, root -> root.getPath() + "." + logProviders.get(root).getSupportedVcs().getName(), ".").hashCode();
   }