diff --git a/src/main/java/eu/siacs/conversations/crypto/sasl/Tokenizer.java b/src/main/java/eu/siacs/conversations/crypto/sasl/Tokenizer.java
index 4797e6e8d1020afdc1672c5dc80e55b8dc00f13c..39be02246b5edeec1086865f95ca15f0ac57ed17 100644
--- a/src/main/java/eu/siacs/conversations/crypto/sasl/Tokenizer.java
+++ b/src/main/java/eu/siacs/conversations/crypto/sasl/Tokenizer.java
@@ -1,7 +1,5 @@
 package eu.siacs.conversations.crypto.sasl;
 
-import android.util.Base64;
-
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Iterator;
diff --git a/src/main/java/eu/siacs/conversations/entities/Conversation.java b/src/main/java/eu/siacs/conversations/entities/Conversation.java
index 81bdb4c7c224c19debbd7928c0811c7303b0f0e2..ed42ac773a3c4c376894d047be229d4d975d98f1 100644
--- a/src/main/java/eu/siacs/conversations/entities/Conversation.java
+++ b/src/main/java/eu/siacs/conversations/entities/Conversation.java
@@ -18,7 +18,6 @@ import java.security.interfaces.DSAPublicKey;
 import java.util.ArrayList;
 import java.util.List;
 
-import eu.siacs.conversations.services.XmppConnectionService;
 import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 import eu.siacs.conversations.xmpp.jid.Jid;
 
diff --git a/src/main/java/eu/siacs/conversations/entities/MucOptions.java b/src/main/java/eu/siacs/conversations/entities/MucOptions.java
index c82593277d33dd9540c4bf783b86d2ad6b62d438..065b6ee47e1ca02e4d1c9459339cdb8c150f9cc9 100644
--- a/src/main/java/eu/siacs/conversations/entities/MucOptions.java
+++ b/src/main/java/eu/siacs/conversations/entities/MucOptions.java
@@ -4,14 +4,12 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.CopyOnWriteArrayList;
 
-import eu.siacs.conversations.Config;
 import eu.siacs.conversations.crypto.PgpEngine;
 import eu.siacs.conversations.xml.Element;
 import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 import eu.siacs.conversations.xmpp.jid.Jid;
 import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 import android.annotation.SuppressLint;
-import android.util.Log;
 
 @SuppressLint("DefaultLocale")
 public class MucOptions {
diff --git a/src/main/java/eu/siacs/conversations/http/HttpConnection.java b/src/main/java/eu/siacs/conversations/http/HttpConnection.java
index 68c26c474748f0c32d18b6307966c1ad11006478..5348e395412396d8da7a54f2b6dfd87f9dfe4f19 100644
--- a/src/main/java/eu/siacs/conversations/http/HttpConnection.java
+++ b/src/main/java/eu/siacs/conversations/http/HttpConnection.java
@@ -1,7 +1,6 @@
 package eu.siacs.conversations.http;
 
 import android.content.Intent;
-import android.graphics.BitmapFactory;
 import android.net.Uri;
 import android.os.SystemClock;
 
diff --git a/src/main/java/eu/siacs/conversations/ui/ConferenceDetailsActivity.java b/src/main/java/eu/siacs/conversations/ui/ConferenceDetailsActivity.java
index a966f77b567af246d29d37a45bf56a32d5d2553e..290842fb442e3d45580b3bc4ecafaf61f508304f 100644
--- a/src/main/java/eu/siacs/conversations/ui/ConferenceDetailsActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/ConferenceDetailsActivity.java
@@ -29,7 +29,6 @@ import eu.siacs.conversations.R;
 import eu.siacs.conversations.crypto.PgpEngine;
 import eu.siacs.conversations.entities.Contact;
 import eu.siacs.conversations.entities.Conversation;
-import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
 import eu.siacs.conversations.entities.MucOptions.User;
 import eu.siacs.conversations.services.XmppConnectionService.OnConversationUpdate;
 import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
diff --git a/src/main/java/eu/siacs/conversations/ui/ContactDetailsActivity.java b/src/main/java/eu/siacs/conversations/ui/ContactDetailsActivity.java
index 3c9519a4a4e13dc2ff7dba36976409453ea87171..4259371ac6f0ef42b39820fab1c78cfb674064ad 100644
--- a/src/main/java/eu/siacs/conversations/ui/ContactDetailsActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/ContactDetailsActivity.java
@@ -28,7 +28,6 @@ import android.widget.TextView;
 
 import org.openintents.openpgp.util.OpenPgpUtils;
 
-import java.util.Iterator;
 import java.util.List;
 
 import eu.siacs.conversations.R;
@@ -36,7 +35,6 @@ import eu.siacs.conversations.crypto.PgpEngine;
 import eu.siacs.conversations.entities.Account;
 import eu.siacs.conversations.entities.Contact;
 import eu.siacs.conversations.entities.ListItem;
-import eu.siacs.conversations.entities.Presences;
 import eu.siacs.conversations.services.XmppConnectionService.OnAccountUpdate;
 import eu.siacs.conversations.services.XmppConnectionService.OnRosterUpdate;
 import eu.siacs.conversations.utils.UIHelper;
diff --git a/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java b/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java
index 0be3a957aa90cd2fca2c20b54b024f7402a3fa60..74fe8432fdcf2ab0f26fc6331fd5c5ee9d7b5182 100644
--- a/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/ConversationActivity.java
@@ -15,7 +15,6 @@ import android.os.SystemClock;
 import android.provider.MediaStore;
 import android.support.v4.widget.SlidingPaneLayout;
 import android.support.v4.widget.SlidingPaneLayout.PanelSlideListener;
-import android.view.ContextMenu;
 import android.view.KeyEvent;
 import android.view.Menu;
 import android.view.MenuItem;
diff --git a/src/main/java/eu/siacs/conversations/ui/SettingsActivity.java b/src/main/java/eu/siacs/conversations/ui/SettingsActivity.java
index b6f3a077de404509a928f7b050903751d8fcf0fd..c6e7ab33495344b4cd9d1cc6f196651263b2a266 100644
--- a/src/main/java/eu/siacs/conversations/ui/SettingsActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/SettingsActivity.java
@@ -5,7 +5,6 @@ import java.util.Arrays;
 import java.util.Locale;
 
 import eu.siacs.conversations.entities.Account;
-import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
diff --git a/src/main/java/eu/siacs/conversations/ui/XmppActivity.java b/src/main/java/eu/siacs/conversations/ui/XmppActivity.java
index a9147fba29f73e2b8e97693289f81e810c6c9617..ddc57c2e8c6a4c49b4896ba4af4b28d9e50fe157 100644
--- a/src/main/java/eu/siacs/conversations/ui/XmppActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/XmppActivity.java
@@ -66,7 +66,6 @@ import eu.siacs.conversations.entities.Account;
 import eu.siacs.conversations.entities.Contact;
 import eu.siacs.conversations.entities.Conversation;
 import eu.siacs.conversations.entities.Message;
-import eu.siacs.conversations.entities.MucOptions;
 import eu.siacs.conversations.entities.Presences;
 import eu.siacs.conversations.services.AvatarService;
 import eu.siacs.conversations.services.XmppConnectionService;
diff --git a/src/main/java/eu/siacs/conversations/ui/adapter/MessageAdapter.java b/src/main/java/eu/siacs/conversations/ui/adapter/MessageAdapter.java
index fc80c234997d54758f90bf3b159fd97a403284f6..e14af11f42c81d1b66cf24bb564cdb37727c1ef2 100644
--- a/src/main/java/eu/siacs/conversations/ui/adapter/MessageAdapter.java
+++ b/src/main/java/eu/siacs/conversations/ui/adapter/MessageAdapter.java
@@ -10,12 +10,10 @@ import android.text.SpannableString;
 import android.text.style.ForegroundColorSpan;
 import android.text.style.StyleSpan;
 import android.util.DisplayMetrics;
-import android.util.Log;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.View.OnLongClickListener;
 import android.view.ViewGroup;
-import android.webkit.MimeTypeMap;
 import android.widget.ArrayAdapter;
 import android.widget.Button;
 import android.widget.ImageView;
@@ -23,9 +21,6 @@ import android.widget.LinearLayout;
 import android.widget.TextView;
 import android.widget.Toast;
 
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.InputStream;
 import java.util.List;
 
 import eu.siacs.conversations.Config;
diff --git a/src/main/java/eu/siacs/conversations/utils/ExceptionHelper.java b/src/main/java/eu/siacs/conversations/utils/ExceptionHelper.java
index 6f3152cab24625882e974fe4dfa3d5ac822bbb2b..ee3ea3e1e91a5b8a482eed6b9e7d52e8636712c5 100644
--- a/src/main/java/eu/siacs/conversations/utils/ExceptionHelper.java
+++ b/src/main/java/eu/siacs/conversations/utils/ExceptionHelper.java
@@ -2,7 +2,6 @@ package eu.siacs.conversations.utils;
 
 import java.io.BufferedReader;
 import java.io.FileInputStream;
-import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.util.List;
diff --git a/src/main/java/eu/siacs/conversations/utils/UIHelper.java b/src/main/java/eu/siacs/conversations/utils/UIHelper.java
index ed6efd06900b1d4ad9d83368f5a92bd9931aa3b8..341b3d773007da2b8771da502db28b3fe099fda1 100644
--- a/src/main/java/eu/siacs/conversations/utils/UIHelper.java
+++ b/src/main/java/eu/siacs/conversations/utils/UIHelper.java
@@ -1,33 +1,13 @@
 package eu.siacs.conversations.utils;
 
-import java.util.ArrayList;
 import java.util.Calendar;
 import java.util.Date;
-import java.util.List;
 import java.util.regex.Pattern;
 
 import eu.siacs.conversations.R;
-import eu.siacs.conversations.entities.Account;
-import eu.siacs.conversations.entities.Contact;
-import eu.siacs.conversations.entities.Conversation;
-import eu.siacs.conversations.ui.ConversationActivity;
-import eu.siacs.conversations.ui.ManageAccountActivity;
-import android.annotation.SuppressLint;
-import android.app.AlertDialog;
-import android.app.Notification;
-import android.app.NotificationManager;
-import android.app.PendingIntent;
 import android.content.Context;
-import android.content.DialogInterface;
-import android.content.DialogInterface.OnClickListener;
-import android.content.Intent;
-import android.support.v4.app.NotificationCompat;
-import android.support.v4.app.TaskStackBuilder;
 import android.text.format.DateFormat;
 import android.text.format.DateUtils;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.widget.TextView;
 
 public class UIHelper {
 	private static final int SHORT_DATE_FLAGS = DateUtils.FORMAT_SHOW_DATE