diff --git a/tunnel/src/main/java/com/wireguard/android/util/ModuleLoader.java b/tunnel/src/main/java/com/wireguard/android/util/ModuleLoader.java
index 06a3f61a..8f7749e1 100644
--- a/tunnel/src/main/java/com/wireguard/android/util/ModuleLoader.java
+++ b/tunnel/src/main/java/com/wireguard/android/util/ModuleLoader.java
@@ -128,7 +128,7 @@ public class ModuleLoader {
     }
 
     @Nullable
-    private static Map<String, Sha256Digest> verifySignedHashes(final String signifyDigest) {
+    private Map<String, Sha256Digest> verifySignedHashes(final String signifyDigest) {
         final byte[] publicKeyBytes = Base64.decode(MODULE_PUBLIC_KEY_BASE64, Base64.DEFAULT);
 
         if (publicKeyBytes == null || publicKeyBytes.length != 32 + 10 || publicKeyBytes[0] != 'E' || publicKeyBytes[1] != 'd')
diff --git a/tunnel/src/main/java/com/wireguard/android/util/RootShell.java b/tunnel/src/main/java/com/wireguard/android/util/RootShell.java
index c67aaaa7..160ba12f 100644
--- a/tunnel/src/main/java/com/wireguard/android/util/RootShell.java
+++ b/tunnel/src/main/java/com/wireguard/android/util/RootShell.java
@@ -177,7 +177,7 @@ public class RootShell {
         }
     }
 
-    private void stop() {
+    public void stop() {
         synchronized (lock) {
             if (process != null) {
                 process.destroy();
diff --git a/tunnel/src/main/java/com/wireguard/android/util/ToolsInstaller.java b/tunnel/src/main/java/com/wireguard/android/util/ToolsInstaller.java
index 7c7be392..3fbdfb26 100644
--- a/tunnel/src/main/java/com/wireguard/android/util/ToolsInstaller.java
+++ b/tunnel/src/main/java/com/wireguard/android/util/ToolsInstaller.java
@@ -107,7 +107,7 @@ public final class ToolsInstaller {
         }
     }
 
-    private boolean extract() throws IOException {
+    public boolean extract() throws IOException {
         localBinaryDir.mkdirs();
         final File[] files = new File[EXECUTABLES.length];
         final File[] tempFiles = new File[EXECUTABLES.length];
diff --git a/ui/src/main/java/com/wireguard/android/model/TunnelManager.java b/ui/src/main/java/com/wireguard/android/model/TunnelManager.java
index 28dcd18e..e370f8de 100644
--- a/ui/src/main/java/com/wireguard/android/model/TunnelManager.java
+++ b/ui/src/main/java/com/wireguard/android/model/TunnelManager.java
@@ -161,7 +161,7 @@ public final class TunnelManager extends BaseObservable {
         completableTunnels.complete(tunnels);
     }
 
-    private void refreshTunnelStates() {
+    public void refreshTunnelStates() {
         Application.getAsyncWorker().supplyAsync(() -> Application.getBackend().getRunningTunnelNames())
                 .thenAccept(running -> {
                     for (final ObservableTunnel tunnel : tunnels)