diff --git a/app/src/androidTest/java/org/fdroid/fdroid/net/HttpDownloaderTest.java b/app/src/androidTest/java/org/fdroid/fdroid/net/HttpDownloaderTest.java
index 084fe116c..47400116c 100644
--- a/app/src/androidTest/java/org/fdroid/fdroid/net/HttpDownloaderTest.java
+++ b/app/src/androidTest/java/org/fdroid/fdroid/net/HttpDownloaderTest.java
@@ -16,7 +16,7 @@ import static org.junit.Assert.fail;
 
 public class HttpDownloaderTest {
 
-    String[] urls = {
+    final String[] urls = {
             "https://en.wikipedia.org/wiki/Index.html",
             "https://mirrors.kernel.org/debian/dists/stable/Release",
             "https://f-droid.org/repo/index.jar",
diff --git a/app/src/testShared/java/org/fdroid/fdroid/mock/RepoDetails.java b/app/src/testShared/java/org/fdroid/fdroid/mock/RepoDetails.java
index 5d8428a15..5778f482c 100644
--- a/app/src/testShared/java/org/fdroid/fdroid/mock/RepoDetails.java
+++ b/app/src/testShared/java/org/fdroid/fdroid/mock/RepoDetails.java
@@ -34,9 +34,9 @@ public class RepoDetails implements RepoXMLHandler.IndexReceiver {
     public String icon;
     public String[] mirrors;
 
-    public List<Apk> apks = new ArrayList<>();
-    public List<App> apps = new ArrayList<>();
-    public List<RepoPushRequest> repoPushRequestList = new ArrayList<>();
+    public final List<Apk> apks = new ArrayList<>();
+    public final List<App> apps = new ArrayList<>();
+    public final List<RepoPushRequest> repoPushRequestList = new ArrayList<>();
 
     @Override
     public void receiveRepo(String name, String description, String signingCert, int maxage,