diff --git a/bramble-api/src/main/java/org/briarproject/bramble/util/IoUtils.java b/bramble-api/src/main/java/org/briarproject/bramble/util/IoUtils.java
index 6e14576c7deab5843ce12b4df841ba40e86e963d..0d4b3d8e0fc931f322a0a1f23f09478587641e02 100644
--- a/bramble-api/src/main/java/org/briarproject/bramble/util/IoUtils.java
+++ b/bramble-api/src/main/java/org/briarproject/bramble/util/IoUtils.java
@@ -39,8 +39,7 @@ public class IoUtils {
 		}
 	}
 
-	public static void copyAndClose(InputStream in, OutputStream out)
-			throws IOException {
+	public static void copyAndClose(InputStream in, OutputStream out) {
 		byte[] buf = new byte[4096];
 		try {
 			while (true) {
diff --git a/briar-android/src/main/java/org/briarproject/briar/android/ScreenFilterMonitorImpl.java b/briar-android/src/main/java/org/briarproject/briar/android/ScreenFilterMonitorImpl.java
index fa9122c451fad394af99141c7b3716951b5897cd..ebc14bde54334bcb34103f92fd5bc3315c64e663 100644
--- a/briar-android/src/main/java/org/briarproject/briar/android/ScreenFilterMonitorImpl.java
+++ b/briar-android/src/main/java/org/briarproject/briar/android/ScreenFilterMonitorImpl.java
@@ -14,7 +14,6 @@ import android.content.pm.Signature;
 import android.support.annotation.UiThread;
 
 import org.briarproject.bramble.api.lifecycle.Service;
-import org.briarproject.bramble.api.lifecycle.ServiceException;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.system.AndroidExecutor;
 import org.briarproject.bramble.util.StringUtils;
@@ -196,7 +195,7 @@ class ScreenFilterMonitorImpl implements ScreenFilterMonitor, Service {
 	}
 
 	@Override
-	public void startService() throws ServiceException {
+	public void startService() {
 		if (used.getAndSet(true)) throw new IllegalStateException();
 		androidExecutor.runOnUiThread(() -> {
 			IntentFilter filter = new IntentFilter();
@@ -212,7 +211,7 @@ class ScreenFilterMonitorImpl implements ScreenFilterMonitor, Service {
 	}
 
 	@Override
-	public void stopService() throws ServiceException {
+	public void stopService() {
 		androidExecutor.runOnUiThread(() -> {
 			if (receiver != null) app.unregisterReceiver(receiver);
 		});