diff --git a/source/net/yacy/gui/Toolkits.java b/source/net/yacy/gui/Toolkits.java
deleted file mode 100644
index 052b2fa87..000000000
--- a/source/net/yacy/gui/Toolkits.java
+++ /dev/null
@@ -1,50 +0,0 @@
-/**
- *  Toolkits
- *  Copyright 2015 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
- *  First released 22.01.2015 at http://yacy.net
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library 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
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public License
- *  along with this program in the file lgpl21.txt
- *  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package net.yacy.gui;
-
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-
-import net.yacy.cora.util.ConcurrentLog;
-
-public class Toolkits {
-
-    public static Object applicationInstance;
-    public static Method setDockIconImage, setQuitHandler;
-
-    static {
-        Class<?> applicationClass = null;
-        try {
-            applicationClass = Class.forName("com.apple.eawt.Application");
-            final Method applicationGetApplication = applicationClass.getMethod("getApplication");
-            applicationInstance = applicationGetApplication.invoke(null);
-            setDockIconImage = applicationClass.getMethod("setDockIconImage", Class.forName("java.awt.Image"));
-        } catch (ClassNotFoundException|NoSuchMethodException|SecurityException|IllegalAccessException|IllegalArgumentException|InvocationTargetException e) {
-            ConcurrentLog.logException(e);
-        }
-        if (applicationClass != null) try {
-            final Class<?> quitHandlerClass = Class.forName("com.apple.eawt.QuitHandler");
-            setQuitHandler = applicationClass.getMethod("setQuitHandler", quitHandlerClass);
-        } catch (ClassNotFoundException|NoSuchMethodException|SecurityException|IllegalArgumentException e) {
-            ConcurrentLog.logException(e);
-        }
-    }
-}
diff --git a/source/net/yacy/gui/Tray.java b/source/net/yacy/gui/Tray.java
index d4451925a..b585639d5 100644
--- a/source/net/yacy/gui/Tray.java
+++ b/source/net/yacy/gui/Tray.java
@@ -38,6 +38,8 @@ import java.awt.event.ActionListener;
 import java.awt.image.BufferedImage;
 import java.io.File;
 import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
 
 import javax.imageio.ImageIO;
 
@@ -145,11 +147,30 @@ public final class Tray {
             Tray.this.progressIcons = null;
 	    }
 	}
+	
+	private static Object applicationInstance;
+    private static Method setDockIconImage;
+
+    static {
+        Class<?> applicationClass = null;
+        try {
+            applicationClass = Class.forName("com.apple.eawt.Application");
+            final Method applicationGetApplication = applicationClass.getMethod("getApplication");
+            applicationInstance = applicationGetApplication.invoke(null);
+        } catch (ClassNotFoundException | NoSuchMethodException | SecurityException | IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
+            ConcurrentLog.logException(e);
+        }
+        if (applicationClass != null) try {
+            setDockIconImage = applicationClass.getMethod("setDockIconImage", Class.forName("java.awt.Image"));
+        } catch (ClassNotFoundException | SecurityException | IllegalArgumentException | NoSuchMethodException e) {
+            ConcurrentLog.logException(e);
+        }
+    }
 
 	private static void setDockIcon(Image icon) {
-	    if (!OS.isMacArchitecture || Toolkits.setDockIconImage == null || Toolkits.applicationInstance == null) return;
+	    if (!OS.isMacArchitecture || setDockIconImage == null || applicationInstance == null) return;
 	    try {
-	        Toolkits.setDockIconImage.invoke(Toolkits.applicationInstance, icon);
+	        setDockIconImage.invoke(applicationInstance, icon);
         } catch (final Throwable e) {}
         // same as: Application.getApplication().setDockIconImage(i);
 	}