diff --git a/jni/NativeFormats/JavaNativeFormatPlugin.cpp b/jni/NativeFormats/JavaNativeFormatPlugin.cpp
index 8fb67de3b..d7bdda4d1 100644
--- a/jni/NativeFormats/JavaNativeFormatPlugin.cpp
+++ b/jni/NativeFormats/JavaNativeFormatPlugin.cpp
@@ -312,6 +312,9 @@ JNIEXPORT jint JNICALL Java_org_geometerplus_fbreader_formats_NativeFormatPlugin
 		}
 		env->DeleteLocalRef(javaFootnoteModel);
 	}
+
+	// TODO: synchronize FontManager
+
 	return 0;
 }
 
diff --git a/src/org/geometerplus/zlibrary/text/fonts/FontManager.java b/src/org/geometerplus/zlibrary/text/fonts/FontManager.java
new file mode 100644
index 000000000..355ece974
--- /dev/null
+++ b/src/org/geometerplus/zlibrary/text/fonts/FontManager.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2007-2014 Geometer Plus <contact@geometerplus.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+package org.geometerplus.zlibrary.text.fonts;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class FontManager {
+	private final ArrayList<List<String>> myFamilyLists = new ArrayList<List<String>>();
+
+	public synchronized int index(List<String> families) {
+		for (int i = 0; i < myFamilyLists.size(); ++i) {
+			if (myFamilyLists.get(i).equals(families)) {
+				return i;
+			}
+		}
+		myFamilyLists.add(new ArrayList<String>(families));
+		return myFamilyLists.size() - 1;
+	}
+}