diff --git a/src/org/geometerplus/android/fbreader/network/AuthenticationActivity.java b/src/org/geometerplus/android/fbreader/network/AuthenticationActivity.java
index 9fcb62223..58c08a7a0 100644
--- a/src/org/geometerplus/android/fbreader/network/AuthenticationActivity.java
+++ b/src/org/geometerplus/android/fbreader/network/AuthenticationActivity.java
@@ -23,7 +23,6 @@ import java.util.*;
 
 import android.app.Activity;
 import android.content.Intent;
-import android.net.Uri;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.TextView;
diff --git a/src/org/geometerplus/android/fbreader/network/NetworkBookInfoActivity.java b/src/org/geometerplus/android/fbreader/network/NetworkBookInfoActivity.java
index 9e7cbe2c3..74090a18d 100644
--- a/src/org/geometerplus/android/fbreader/network/NetworkBookInfoActivity.java
+++ b/src/org/geometerplus/android/fbreader/network/NetworkBookInfoActivity.java
@@ -49,7 +49,6 @@ import org.geometerplus.fbreader.network.tree.NetworkBookTree;
 import org.geometerplus.fbreader.network.urlInfo.*;
 import org.geometerplus.fbreader.network.opds.OPDSBookItem;
 
-import org.geometerplus.android.fbreader.network.action.ActionCode;
 import org.geometerplus.android.fbreader.network.action.OpenCatalogAction;
 import org.geometerplus.android.fbreader.network.action.NetworkBookActions;
 
@@ -319,7 +318,6 @@ public class NetworkBookInfoActivity extends Activity implements NetworkLibrary.
 	}
 
 	private final void setupButtons() {
-		final ZLResource resource = NetworkLibrary.resource();
 		final int buttons[] = new int[] {
 				R.id.network_book_button0,
 				R.id.network_book_button1,
diff --git a/src/org/geometerplus/android/fbreader/network/NetworkLibraryActivity.java b/src/org/geometerplus/android/fbreader/network/NetworkLibraryActivity.java
index d91220385..2003533b9 100644
--- a/src/org/geometerplus/android/fbreader/network/NetworkLibraryActivity.java
+++ b/src/org/geometerplus/android/fbreader/network/NetworkLibraryActivity.java
@@ -34,12 +34,8 @@ import org.geometerplus.zlibrary.ui.android.network.SQLiteCookieDatabase;
 import org.geometerplus.fbreader.tree.FBTree;
 import org.geometerplus.fbreader.network.*;
 import org.geometerplus.fbreader.network.tree.*;
-import org.geometerplus.fbreader.network.urlInfo.UrlInfo;
-import org.geometerplus.fbreader.network.authentication.NetworkAuthenticationManager;
 
 import org.geometerplus.android.fbreader.tree.BaseActivity;
-import org.geometerplus.android.fbreader.api.PluginApi;
-
 import org.geometerplus.android.fbreader.network.action.*;
 
 public class NetworkLibraryActivity extends BaseActivity implements NetworkLibrary.ChangeListener {
@@ -250,7 +246,6 @@ public class NetworkLibraryActivity extends BaseActivity implements NetworkLibra
 		}
 
 		final NetworkTree tree = (NetworkTree)getListAdapter().getItem(position);
-		Action defaultAction = null;
 		for (Action a : myListClickActions) {
 			if (a.isVisible(tree) && a.isEnabled(tree)) {
 				a.checkAndRun(tree);
@@ -284,7 +279,7 @@ public class NetworkLibraryActivity extends BaseActivity implements NetworkLibra
 			fillOptionsMenuList();
 		}
 
-		final NetworkTree tree = (NetworkTree)getCurrentTree();
+//		final NetworkTree tree = (NetworkTree)getCurrentTree();
 		for (Action a : myOptionsMenuActions) {
 			final MenuItem item = menu.add(0, a.Code, Menu.NONE, "");
 			if (a.IconId != -1) {
diff --git a/src/org/geometerplus/android/fbreader/network/Util.java b/src/org/geometerplus/android/fbreader/network/Util.java
index 48fddc59a..7040fe383 100644
--- a/src/org/geometerplus/android/fbreader/network/Util.java
+++ b/src/org/geometerplus/android/fbreader/network/Util.java
@@ -19,8 +19,6 @@
 
 package org.geometerplus.android.fbreader.network;
 
-import java.util.*;
-
 import android.app.Activity;
 import android.content.ActivityNotFoundException;
 import android.content.Intent;
@@ -28,16 +26,13 @@ import android.content.Context;
 import android.net.Uri;
 
 import org.geometerplus.zlibrary.core.network.ZLNetworkException;
-import org.geometerplus.zlibrary.core.resources.ZLResource;
 
 import org.geometerplus.fbreader.network.*;
 import org.geometerplus.fbreader.network.authentication.NetworkAuthenticationManager;
 import org.geometerplus.fbreader.network.authentication.litres.LitResAuthenticationManager;
 import org.geometerplus.fbreader.network.tree.NetworkBookTree;
-import org.geometerplus.fbreader.network.tree.NetworkCatalogTree;
 import org.geometerplus.fbreader.network.urlInfo.UrlInfo;
 
-import org.geometerplus.android.util.UIUtil;
 import org.geometerplus.android.util.PackageUtil;
 
 public abstract class Util implements UserRegistrationConstants {
diff --git a/src/org/geometerplus/android/fbreader/network/action/Action.java b/src/org/geometerplus/android/fbreader/network/action/Action.java
index fb06dda15..7fd143aec 100644
--- a/src/org/geometerplus/android/fbreader/network/action/Action.java
+++ b/src/org/geometerplus/android/fbreader/network/action/Action.java
@@ -19,8 +19,6 @@
 
 package org.geometerplus.android.fbreader.network.action;
 
-import java.util.*;
-
 import android.app.Activity;
 
 import org.geometerplus.zlibrary.core.util.ZLBoolean3;
diff --git a/src/org/geometerplus/android/fbreader/network/action/NetworkBookActions.java b/src/org/geometerplus/android/fbreader/network/action/NetworkBookActions.java
index 04a182317..0f1952220 100644
--- a/src/org/geometerplus/android/fbreader/network/action/NetworkBookActions.java
+++ b/src/org/geometerplus/android/fbreader/network/action/NetworkBookActions.java
@@ -27,7 +27,6 @@ import android.app.Activity;
 import android.net.Uri;
 import android.content.Intent;
 import android.content.DialogInterface;
-import android.view.ContextMenu;
 
 import org.geometerplus.zlibrary.core.resources.ZLResource;
 import org.geometerplus.zlibrary.core.network.ZLNetworkException;
@@ -40,7 +39,6 @@ import org.geometerplus.android.fbreader.FBReader;
 
 import org.geometerplus.fbreader.network.*;
 import org.geometerplus.fbreader.network.urlInfo.*;
-import org.geometerplus.fbreader.network.tree.NetworkBookTree;
 import org.geometerplus.fbreader.network.authentication.NetworkAuthenticationManager;
 
 import org.geometerplus.android.fbreader.network.*;
diff --git a/src/org/geometerplus/android/fbreader/network/action/ReloadCatalogAction.java b/src/org/geometerplus/android/fbreader/network/action/ReloadCatalogAction.java
index d0fbdaebb..d79bdf464 100644
--- a/src/org/geometerplus/android/fbreader/network/action/ReloadCatalogAction.java
+++ b/src/org/geometerplus/android/fbreader/network/action/ReloadCatalogAction.java
@@ -27,7 +27,6 @@ import org.geometerplus.fbreader.network.NetworkURLCatalogItem;
 import org.geometerplus.fbreader.network.tree.NetworkCatalogTree;
 import org.geometerplus.fbreader.network.urlInfo.UrlInfo;
 
-import org.geometerplus.android.fbreader.network.Util;
 import org.geometerplus.android.fbreader.network.ItemsLoadingService;
 
 public class ReloadCatalogAction extends CatalogAction {
diff --git a/src/org/geometerplus/android/fbreader/network/action/RemoveCustomCatalogAction.java b/src/org/geometerplus/android/fbreader/network/action/RemoveCustomCatalogAction.java
index f81bdfdd1..497102477 100644
--- a/src/org/geometerplus/android/fbreader/network/action/RemoveCustomCatalogAction.java
+++ b/src/org/geometerplus/android/fbreader/network/action/RemoveCustomCatalogAction.java
@@ -20,7 +20,6 @@
 package org.geometerplus.android.fbreader.network.action;
 
 import android.app.Activity;
-import android.content.Intent;
 
 import org.geometerplus.fbreader.network.NetworkLibrary;
 import org.geometerplus.fbreader.network.NetworkTree;
diff --git a/src/org/geometerplus/android/fbreader/network/action/RunSearchAction.java b/src/org/geometerplus/android/fbreader/network/action/RunSearchAction.java
index 2c31653d6..67757c352 100644
--- a/src/org/geometerplus/android/fbreader/network/action/RunSearchAction.java
+++ b/src/org/geometerplus/android/fbreader/network/action/RunSearchAction.java
@@ -19,14 +19,9 @@
 
 package org.geometerplus.android.fbreader.network.action;
 
-import java.util.*;
-
 import android.app.Activity;
 
 import org.geometerplus.fbreader.network.NetworkTree;
-import org.geometerplus.fbreader.network.NetworkLibrary;
-
-import org.geometerplus.android.fbreader.network.ItemsLoadingService;
 
 import org.geometerplus.zlibrary.ui.android.R;
 
diff --git a/src/org/geometerplus/fbreader/network/NetworkLibrary.java b/src/org/geometerplus/fbreader/network/NetworkLibrary.java
index f5bcb6334..24e5c12c2 100644
--- a/src/org/geometerplus/fbreader/network/NetworkLibrary.java
+++ b/src/org/geometerplus/fbreader/network/NetworkLibrary.java
@@ -278,17 +278,17 @@ public class NetworkLibrary {
 		myUpdateVisibility = true;
 	}
 
-	private static boolean linkIsChanged(INetworkLink link) {
-		return
-			link instanceof ICustomNetworkLink &&
-			((ICustomNetworkLink)link).hasChanges();
-	}
+//	private static boolean linkIsChanged(INetworkLink link) {
+//		return
+//			link instanceof ICustomNetworkLink &&
+//			((ICustomNetworkLink)link).hasChanges();
+//	}
 
-	private static void makeValid(INetworkLink link) {
-		if (link instanceof ICustomNetworkLink) {
-			((ICustomNetworkLink)link).resetChanges();
-		}
-	}
+//	private static void makeValid(INetworkLink link) {
+//		if (link instanceof ICustomNetworkLink) {
+//			((ICustomNetworkLink)link).resetChanges();
+//		}
+//	}
 
 	private void makeUpToDate() {
 		final SortedSet<INetworkLink> linkSet = new TreeSet<INetworkLink>(activeLinks());
diff --git a/src/org/geometerplus/fbreader/network/opds/OPDSLinkReader.java b/src/org/geometerplus/fbreader/network/opds/OPDSLinkReader.java
index a2be3fe06..973312b01 100644
--- a/src/org/geometerplus/fbreader/network/opds/OPDSLinkReader.java
+++ b/src/org/geometerplus/fbreader/network/opds/OPDSLinkReader.java
@@ -28,7 +28,6 @@ import org.geometerplus.zlibrary.core.network.ZLNetworkRequest;
 
 import org.geometerplus.fbreader.Paths;
 import org.geometerplus.fbreader.network.*;
-import org.geometerplus.fbreader.network.atom.ATOMUpdated;
 
 public class OPDSLinkReader {
 	static final String CATALOGS_URL = "http://data.fbreader.org/catalogs/generic-1.7.xml";
diff --git a/src/org/geometerplus/zlibrary/core/money/MoneyException.java b/src/org/geometerplus/zlibrary/core/money/MoneyException.java
index 234544dfc..c411be222 100644
--- a/src/org/geometerplus/zlibrary/core/money/MoneyException.java
+++ b/src/org/geometerplus/zlibrary/core/money/MoneyException.java
@@ -20,6 +20,8 @@
 package org.geometerplus.zlibrary.core.money;
 
 public class MoneyException extends RuntimeException {
+	private static final long serialVersionUID = 3936494538949724968L;
+
 	public MoneyException(String message) {
 		super(message);
 	}