diff --git a/src/main/java/de/hhu/ba/yoshikoWrapper/CyActivator.java b/src/main/java/de/hhu/ba/yoshikoWrapper/CyActivator.java
index 34607e95f245a064effcd872f6f23a2d2a62516e..d8ebf32dd583b7e7264487b6cf74104d14f73c55 100644
--- a/src/main/java/de/hhu/ba/yoshikoWrapper/CyActivator.java
+++ b/src/main/java/de/hhu/ba/yoshikoWrapper/CyActivator.java
@@ -50,12 +50,10 @@ import org.osgi.framework.BundleContext;
 
 import de.hhu.ba.yoshikoWrapper.core.ConfigurationManager;
 import de.hhu.ba.yoshikoWrapper.core.CyCore;
-import de.hhu.ba.yoshikoWrapper.core.Hint;
 import de.hhu.ba.yoshikoWrapper.core.LocalizationManager;
 import de.hhu.ba.yoshikoWrapper.core.YoshUtil;
 import de.hhu.ba.yoshikoWrapper.core.YoshikoLoader;
 import de.hhu.ba.yoshikoWrapper.cytoUtil.NetChangeListener;
-import de.hhu.ba.yoshikoWrapper.swing.HintManager;
 import de.hhu.ba.yoshikoWrapper.swing.components.MainPanel;
 
 /**
@@ -124,8 +122,6 @@ public class CyActivator extends AbstractCyActivator {
 		registerService(context,netChangeListener, SessionLoadedListener.class, new Properties());
 		registerService(context,netChangeListener, SetCurrentNetworkListener.class, new Properties());
 
-		//Show Startup-Hint
-		HintManager.showMappingHint(Hint.FIRST_START);
 
 	}
 
diff --git a/src/main/java/de/hhu/ba/yoshikoWrapper/core/Hint.java b/src/main/java/de/hhu/ba/yoshikoWrapper/core/Hint.java
deleted file mode 100644
index c916fe6d8b68edee465b7f7fac61758fbdcd134f..0000000000000000000000000000000000000000
--- a/src/main/java/de/hhu/ba/yoshikoWrapper/core/Hint.java
+++ /dev/null
@@ -1,6 +0,0 @@
-package de.hhu.ba.yoshikoWrapper.core;
-
-public enum Hint {
-	USE_MAPPING,
-	FIRST_START
-}
diff --git a/src/main/java/de/hhu/ba/yoshikoWrapper/swing/HintManager.java b/src/main/java/de/hhu/ba/yoshikoWrapper/swing/HintManager.java
deleted file mode 100644
index 3c0d640f80ade521832ab1e0e87c7d03c72366d6..0000000000000000000000000000000000000000
--- a/src/main/java/de/hhu/ba/yoshikoWrapper/swing/HintManager.java
+++ /dev/null
@@ -1,75 +0,0 @@
-package de.hhu.ba.yoshikoWrapper.swing;
-
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Map;
-
-import javax.swing.JOptionPane;
-
-import org.slf4j.Logger;
-
-import de.hhu.ba.yoshikoWrapper.core.CyCore;
-import de.hhu.ba.yoshikoWrapper.core.Hint;
-import de.hhu.ba.yoshikoWrapper.core.LocalizationManager;
-import de.hhu.ba.yoshikoWrapper.logging.YoshikoLogger;
-
-/**
- * Bothers the user with useful hints
- *
- */
-public class HintManager {
-
-	//TODO: Implement as HashMap
-
-	private static Logger logger = YoshikoLogger.getInstance().getLogger();
-
-	private static final Runnable useMappingHint = new Runnable() {
-
-		@Override
-		public void run() {
-			JOptionPane.showMessageDialog(null, LocalizationManager.get("noMappingHint"), LocalizationManager.get("yoshikoHint"),JOptionPane.INFORMATION_MESSAGE);
-		}
-
-	};
-
-	private static final Runnable firstStart = new Runnable() {
-
-		@Override
-		public void run() {
-			 JOptionPane.showMessageDialog(null, LocalizationManager.get("firstStart"), "Yoshiko Welcome", JOptionPane.INFORMATION_MESSAGE, GraphicsLoader.getLogo(40));
-		}
-
-	};
-
-	private final static Map<Hint,Runnable> hints;
-
-	static {
-		Map<Hint, Runnable> map = new HashMap<Hint,Runnable>();
-		map.put(Hint.USE_MAPPING, useMappingHint);
-		map.put(Hint.FIRST_START, firstStart);
-		hints = Collections.unmodifiableMap(map);
-	}
-
-	public static void showMappingHint(Hint hint) {
-		if (
-				CyCore.getConfig(
-						hint.toString()+"shown"
-				) == null
-			)
-		{
-
-			//Save property so we dont show this again
-			CyCore.cm.getProperties().setProperty(hint.toString()+ "shown", "1");
-			if (hints.get(hint) != null) {
-				hints.get(hint).run();
-			}
-			else {
-				logger.warn("Asked for a hint that doesnt exist with hint name: "+hint.toString());
-			}
-
-		}
-	}
-
-
-
-}
diff --git a/src/main/java/de/hhu/ba/yoshikoWrapper/swing/components/MainPanel.java b/src/main/java/de/hhu/ba/yoshikoWrapper/swing/components/MainPanel.java
index d61f7593430a2f4124e381174a462493d80450dc..965ae4635cbec4b7d382ea9788e919efccdb24b0 100644
--- a/src/main/java/de/hhu/ba/yoshikoWrapper/swing/components/MainPanel.java
+++ b/src/main/java/de/hhu/ba/yoshikoWrapper/swing/components/MainPanel.java
@@ -1,16 +1,16 @@
 /*******************************************************************************
  * Copyright (C) 2017 Philipp Spohr
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
- * 
+ *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
- * 
+ *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
@@ -52,13 +52,11 @@ import org.cytoscape.work.TaskIterator;
 
 import de.hhu.ba.yoshikoWrapper.core.AlgorithmTask;
 import de.hhu.ba.yoshikoWrapper.core.CyCore;
-import de.hhu.ba.yoshikoWrapper.core.Hint;
 import de.hhu.ba.yoshikoWrapper.core.LocalizationManager;
 import de.hhu.ba.yoshikoWrapper.core.ParameterSet;
 import de.hhu.ba.yoshikoWrapper.core.YoshikoLoader;
 import de.hhu.ba.yoshikoWrapper.swing.AboutDialogFactory;
 import de.hhu.ba.yoshikoWrapper.swing.GraphicsLoader;
-import de.hhu.ba.yoshikoWrapper.swing.HintManager;
 import de.hhu.ba.yoshikoWrapper.swing.LanguageSwitcherPanelFactory;
 import de.hhu.ba.yoshikoWrapper.swing.LibraryPanelFactory;
 import de.hhu.ba.yoshikoWrapper.swing.SwingUtil;
@@ -68,39 +66,39 @@ import de.hhu.ba.yoshikoWrapper.swing.SwingUtil;
  */
 @SuppressWarnings("serial")
 public class MainPanel extends JPanel implements CytoPanelComponent {
-	
+
 	//SWING COMPONENTS
-		
+
 	private final YoshikoHeader header;
-	
+
 	private final JButton about;
-	
+
 	private final JCheckBox showAdvancedOptions;
 	private final ArrayList<JComponent> advancedOptions;
 
 	//Those two work with factories whysoever
 	private final BasicCollapsiblePanel langPanel;
 	private final BasicCollapsiblePanel libraryPanel;
-	
+
 	//Those don't work really as collapsible panels and cause glitches which forces the workaround of wrapping them
 	//Probably someone used getClass() == instead of instanceof so extending BasicCollapsiblePanel is sadly not possible
 	private final BasicCollapsiblePanel ecPanelWrapper;
 	private final EditCostPanel ecPanel;
-	
+
 	private final BasicCollapsiblePanel reductionWrapper;
 	private final ReductionRulesChooser reductionRulesChooser;
-	
+
 	private final BasicCollapsiblePanel opWrapper;
-	private final OperationModePanel opModePanel;	
-	
+	private final OperationModePanel opModePanel;
+
 	/**
 	 * Main constructor, creates a new Panel and initializes subcomponents
 	 */
 	public MainPanel() {
 
-		//Initialize Swing components		
+		//Initialize Swing components
 		header = new YoshikoHeader();
-		
+
 		about = new JButton(LocalizationManager.get("aboutButton"),GraphicsLoader.getInfoIcon(16));
 		about.addActionListener(new ActionListener() {
 
@@ -108,33 +106,33 @@ public class MainPanel extends JPanel implements CytoPanelComponent {
 			public void actionPerformed(ActionEvent e) {
 				AboutDialogFactory.showDialog();
 			}
-			
+
 		});
-		
+
 		showAdvancedOptions = new JCheckBox(LocalizationManager.get("showAdvanced"));
 		showAdvancedOptions.addActionListener(toggleAdvancedOptionsListener);
-		
+
 		langPanel = LanguageSwitcherPanelFactory.createLanguageSwitcherPanel();
-		
+
 		libraryPanel = LibraryPanelFactory.createLibraryPanel();
 		//If no library is loaded yet the obvious panel should be showing up
 		if (!YoshikoLoader.isLibraryLoaded()) {
 			libraryPanel.setCollapsed(false);
 		}
-		
+
 		ecPanel = new EditCostPanel();
 		ecPanelWrapper = new BasicCollapsiblePanel(LocalizationManager.get("editingCostPanel"));
 		ecPanelWrapper.add(ecPanel);
 		ecPanelWrapper.setCollapsed(false);
-		
+
 		opModePanel = new OperationModePanel();
 		opWrapper = new BasicCollapsiblePanel(LocalizationManager.get("operationMode"));
 		opWrapper.add(opModePanel);
-		
+
 		reductionWrapper = new BasicCollapsiblePanel(LocalizationManager.get("redRuleChooserTitle"));
 		reductionRulesChooser = new ReductionRulesChooser();
 		reductionWrapper.add(reductionRulesChooser);
-		
+
 		JButton runButton = new JButton(LocalizationManager.get("run"));
 		runButton.addActionListener(buttonListener);
 
@@ -150,7 +148,7 @@ public class MainPanel extends JPanel implements CytoPanelComponent {
 				opWrapper,
 				runButton
 		);
-		
+
 		//Manage all advanced components separately to enable toggling
 		advancedOptions = new ArrayList<JComponent>();
 		advancedOptions.addAll(
@@ -159,15 +157,15 @@ public class MainPanel extends JPanel implements CytoPanelComponent {
 						reductionWrapper
 						)
 		);
-		
+
 		showAdvancedOptions(false);
-		
+
 		//Layout
 		GroupLayout layout = new GroupLayout(this);
-		
+
 		layout.setAutoCreateGaps(true);
 		layout.setAutoCreateContainerGaps(true);
-		
+
 		layout.setHorizontalGroup(layout.createParallelGroup(Alignment.LEADING,true)
 				.addGroup(layout.createSequentialGroup()
 					.addComponent(header,DEFAULT_SIZE, DEFAULT_SIZE,DEFAULT_SIZE)
@@ -184,7 +182,7 @@ public class MainPanel extends JPanel implements CytoPanelComponent {
 				.addComponent(opWrapper,DEFAULT_SIZE, DEFAULT_SIZE,DEFAULT_SIZE)
 				.addComponent(runButton,DEFAULT_SIZE, DEFAULT_SIZE,DEFAULT_SIZE)
 		);
-		
+
 		layout.setVerticalGroup(layout.createSequentialGroup()
 				.addGroup(layout.createParallelGroup()
 						.addComponent(header,DEFAULT_SIZE,DEFAULT_SIZE,PREFERRED_SIZE)
@@ -197,22 +195,22 @@ public class MainPanel extends JPanel implements CytoPanelComponent {
 				.addComponent(ecPanelWrapper,DEFAULT_SIZE,DEFAULT_SIZE,PREFERRED_SIZE)
 				.addComponent(reductionWrapper,DEFAULT_SIZE,DEFAULT_SIZE,PREFERRED_SIZE)
 				.addComponent(opWrapper,DEFAULT_SIZE,DEFAULT_SIZE,PREFERRED_SIZE)
-				.addComponent(runButton,DEFAULT_SIZE,DEFAULT_SIZE,PREFERRED_SIZE)	
+				.addComponent(runButton,DEFAULT_SIZE,DEFAULT_SIZE,PREFERRED_SIZE)
 		);
-		
+
 		this.setLayout(layout);
-				
+
 	}
-	
+
 	private ActionListener toggleAdvancedOptionsListener = new ActionListener() {
 
 		@Override
 		public void actionPerformed(ActionEvent e) {
 			showAdvancedOptions(showAdvancedOptions.isSelected());
 		}
-		
+
 	};
-	
+
 	private void showAdvancedOptions(boolean show) {
 		for (JComponent j : advancedOptions) {
 			j.setVisible(show);
@@ -230,7 +228,7 @@ public class MainPanel extends JPanel implements CytoPanelComponent {
 		private final TaskIterator iterator = new TaskIterator();
 		@Override
 		public void actionPerformed(ActionEvent e) {
-			
+
 			//SWING BLACK MAGIC
 			Window noWindow = null;
 			JDialog statusWindow = new JDialog(noWindow);
@@ -241,14 +239,8 @@ public class MainPanel extends JPanel implements CytoPanelComponent {
 			statusWindow.setModalityType(ModalityType.MODELESS);
 			statusWindow.setAlwaysOnTop(false);
 			//SWING BLACK MAGIC
-			
+
 			if (YoshikoLoader.isLibraryLoaded()){
-				
-				//User has mapped no values -> Annoy him
-				if (ecPanel.getWeightColumn() == null) {
-					HintManager.showMappingHint(Hint.USE_MAPPING);
-				}
-				
 				AbstractTask yoshiko = new AlgorithmTask(
 					popupLevel,
 					CyCore.cy.getCurrentNetwork(),
@@ -259,14 +251,14 @@ public class MainPanel extends JPanel implements CytoPanelComponent {
 				 */
 				if (!iterator.hasNext()) {
 					iterator.append(yoshiko);
-					
+
 					CyCore.dialogTaskManager.setExecutionContext(statusWindow);
 					CyCore.dialogTaskManager.execute(iterator);
-					
+
 				}
 			}
 			else {
-				JOptionPane.showMessageDialog(	
+				JOptionPane.showMessageDialog(
 					null,
 					LocalizationManager.get("noLibTitle"),
 					LocalizationManager.get("noLibMessage"),
@@ -275,7 +267,7 @@ public class MainPanel extends JPanel implements CytoPanelComponent {
 			}
 		}
 	};
-	
+
 	/**
 	 * Fetches all the parameters from the various swing components and packs them into a neat abstract wrapper class
 	 * @return The currently selected parameter wrapped in a ParameterSet
@@ -291,16 +283,16 @@ public class MainPanel extends JPanel implements CytoPanelComponent {
 		ret.reductionRulesBitMask = reductionRulesChooser.getBitMask();
 		ret.snrMultFactor = reductionRulesChooser.getMultFactor();
 		ret.useTriangleCuts = opModePanel.useTriangleCuts();
-		ret.usePartitionCuts = opModePanel.usePartitionCuts(); 
+		ret.usePartitionCuts = opModePanel.usePartitionCuts();
 		ret.useHeuristic = opModePanel.useHeuristic();
 		ret.solCount = opModePanel.getSolCount();
 		ret.disableMultiThreading = opModePanel.isMultiThreadingDisabled();
 		return ret;
 	}
 
-	
+
 	//GETTER / SETTER
-	
+
 	public ColumnMapper getColumnMapper() {
 		return ecPanel.getColumnMapper();
 	}
@@ -320,7 +312,7 @@ public class MainPanel extends JPanel implements CytoPanelComponent {
 	public String getTitle() {
 		return "Yoshiko";
 	}
-	
+
 	public Icon getIcon() {
 		return GraphicsLoader.getLogo(16);
 	}
diff --git a/src/test/java/de/hhu/ba/yoshikoWrapper/logging/YoshikoLogger_test.java b/src/test/java/de/hhu/ba/yoshikoWrapper/logging/YoshikoLogger_test.java
new file mode 100644
index 0000000000000000000000000000000000000000..da737f43b1b8cda8f18283fe6e55edb0be2b4961
--- /dev/null
+++ b/src/test/java/de/hhu/ba/yoshikoWrapper/logging/YoshikoLogger_test.java
@@ -0,0 +1,37 @@
+/*******************************************************************************
+ * Copyright (C) 2017 Philipp Spohr
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ ******************************************************************************/
+package de.hhu.ba.yoshikoWrapper.logging;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+import org.slf4j.Logger;
+
+public class YoshikoLogger_test {
+
+	@Test
+	public void loggerTest1(){
+		Logger logger = YoshikoLogger.getInstance().getLogger();
+		assertEquals(logger.getClass(),org.slf4j.Logger.class);
+	}
+
+}