diff --git a/plugins/hg4idea/src/org/zmlx/hg4idea/provider/HgChangeProvider.java b/plugins/hg4idea/src/org/zmlx/hg4idea/provider/HgChangeProvider.java
index a766786658e2..8e8c06cbb4bb 100644
--- a/plugins/hg4idea/src/org/zmlx/hg4idea/provider/HgChangeProvider.java
+++ b/plugins/hg4idea/src/org/zmlx/hg4idea/provider/HgChangeProvider.java
@@ -20,7 +20,6 @@ import com.intellij.openapi.vcs.changes.*;
 import com.intellij.openapi.vfs.VfsUtil;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.ui.JBColor;
-import com.intellij.util.Function;
 import com.intellij.util.containers.ContainerUtil;
 import com.intellij.vcsUtil.VcsUtil;
 import org.jetbrains.annotations.NotNull;
@@ -92,12 +91,7 @@ public class HgChangeProvider implements ChangeProvider {
       hgChanges.addAll(new HgStatusCommand.Builder(true).build(myProject).executeInCurrentThread(repo, entry.getValue()));
       final HgRepository hgRepo = HgUtil.getRepositoryForFile(myProject, repo);
       if (hgRepo != null && hgRepo.hasSubrepos()) {
-        hgChanges.addAll(ContainerUtil.mapNotNull(hgRepo.getSubrepos(), new Function<HgNameWithHashInfo, HgChange>() {
-          @Override
-          public HgChange fun(HgNameWithHashInfo info) {
-            return findChange(hgRepo, info);
-          }
-        }));
+        hgChanges.addAll(ContainerUtil.mapNotNull(hgRepo.getSubrepos(), info -> findChange(hgRepo, info)));
       }
 
       sendChanges(builder, hgChanges, list, workingRevision, parentRevision);