Use a TreeMap to construct the list of renamed projects

This eliminates one source of unpredictable ordering of entries in .gitmodules.

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Change-Id: I834ae57bd18f51966ef76c039f5212ebf60a33e8

org.eclipse.jgit/src/org/eclipse/jgit/gitrepo/RepoCommand.java

@@ -52,11 +52,11 @@ import java.io.InputStream;
 import java.net.URI;
 import java.text.MessageFormat;
 import java.util.ArrayList;
-import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
 import java.util.StringJoiner;
+import java.util.TreeMap;
 
 import org.eclipse.jgit.annotations.Nullable;
 import org.eclipse.jgit.api.Git;
@@ -736,7 +736,7 @@ public class RepoCommand extends GitCommand<RevCommit> {
 	 * @return projects that are renamed if necessary
 	 */
 	private List<RepoProject> renameProjects(List<RepoProject> projects) {
-		Map<String, List<RepoProject>> m = new HashMap<>();
+		Map<String, List<RepoProject>> m = new TreeMap<>();
 		for (RepoProject proj : projects) {
 			List<RepoProject> l = m.get(proj.getName());
 			if (l == null) {