diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/gitrepo/RepoCommandTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/gitrepo/RepoCommandTest.java
index 80a0250de..ccd15d038 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/gitrepo/RepoCommandTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/gitrepo/RepoCommandTest.java
@@ -50,9 +50,6 @@
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileReader;
-import java.util.Arrays;
-import java.util.HashSet;
-import java.util.Set;
 
 import org.eclipse.jgit.api.Git;
 import org.eclipse.jgit.junit.JGitTestUtil;
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/gitrepo/RepoCommand.java b/org.eclipse.jgit/src/org/eclipse/jgit/gitrepo/RepoCommand.java
index ef634f3d6..ca976a1a3 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/gitrepo/RepoCommand.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/gitrepo/RepoCommand.java
@@ -51,7 +51,6 @@
 import java.io.InputStream;
 import java.text.MessageFormat;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/gitrepo/RepoProject.java b/org.eclipse.jgit/src/org/eclipse/jgit/gitrepo/RepoProject.java
index bcc7ffc21..d29f6c01e 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/gitrepo/RepoProject.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/gitrepo/RepoProject.java
@@ -136,6 +136,8 @@ public void copy() throws IOException {
 	 *            name of the remote definition
 	 * @param groups
 	 *            set of groups
+	 * @param recommendShallow
+	 *            recommendation for shallowness
 	 * @since 4.4
 	 */
 	public RepoProject(String name, String path, String revision,
@@ -189,7 +191,8 @@ public RepoProject setUrl(String url) {
 	/**
 	 * Set the url of the sub repo.
 	 *
-	 * @param url
+	 * @param groups
+	 *            comma separated group list
 	 * @return this for chaining.
 	 * @since 4.4
 	 */
@@ -297,6 +300,8 @@ public String getRecommendShallow() {
 	/**
 	 * Sets the recommendation for shallowness.
 	 *
+	 * @param recommendShallow
+	 *            recommendation for shallowness
 	 * @since 4.4
 	 */
 	public void setRecommendShallow(String recommendShallow) {