diff --git a/Doc/Sda1/jdbc.xml b/Doc/Sda1/jdbc.xml
index 3ff95988c771359283ea0d3ae47d5ccf75e89f1e..62268ab5606dcfac8172c83503e0e2dc40556dc3 100644
--- a/Doc/Sda1/jdbc.xml
+++ b/Doc/Sda1/jdbc.xml
@@ -1123,9 +1123,9 @@ public class SimpleInsert {
     <section xml:id="sectSimpleInsertGui">
       <title>A first GUI sketch</title>
 
-      <para>So far all data records being transferred to the database server
-      are still hard-coded in our application. In practice a user wants to
-      enter data of persons to be submitted to the database.</para>
+      <para>So far all data records being written to the database server by
+      our (toy) application are just hard-coded. In practice a GUI is being
+      required allowing for entering data.</para>
 
       <para>We now guide you to develop a first version of a simple GUI for
       this tasks. A more <link linkend="figureDataInsert2">elaborate
@@ -1148,16 +1148,9 @@ public class SimpleInsert {
         </mediaobject>
       </figure>
 
-      <para>Implementing Swing GUI applications requires knowledge as being
-      taught in e.g. <link
-      xlink:href="http://www.hdm-stuttgart.de/studenten/stundenplan/vorlesungsverzeichnis/vorlesung_detail?vorlid=5212221">113300
-      Entwicklung von Web-Anwendungen</link>. If you do not (yet) feel
-      comfortable writing <productname
-      xlink:href="http://docs.oracle.com/javase/tutorial/uiswing/index.html">Swing</productname>
-      applications you may want to read <uri
-      xlink:href="http://www.javamex.com/tutorials/swing">http://www.javamex.com/tutorials/swing</uri>
-      and <emphasis role="bold">really</emphasis> understand the examples
-      being presented therein.</para>
+      <para>Based on your existing JavaFX GUI experience the subsequent GUI
+      employs the <link xlink:href="https://vaadin.com/book/-/page">Vaadin
+      application framework</link>.</para>
 
       <qandaset defaultlabel="qanda" xml:id="quandaentry_GuiDb">
         <title>GUI for inserting Person data to a database server</title>
@@ -1165,7 +1158,7 @@ public class SimpleInsert {
         <qandadiv>
           <qandaentry>
             <question>
-              <para>Write a GUI application as being outlined in <xref
+              <para>Write a WEB GUI application as being outlined in <xref
               linkend="simpleInsertGui"/>. You may proceed as follows:</para>
 
               <orderedlist>
@@ -1195,66 +1188,43 @@ public class SimpleInsert {
                   your <classname>java.awt.event.ActionListener</classname> to
                   actually insert datasets into your database.</para>
                 </listitem>
+
+                <listitem>
+                  <para>Provide problem hints <quote>database connection
+                  failure</quote> to the end user and more detailed log
+                  messages for debugging purposes.</para>
+                </listitem>
               </orderedlist>
             </question>
 
             <answer>
               <para>The complete implementation resides in
-              <classname>sda.jdbc.intro.v01.InsertPerson</classname>:</para>
-
-              <programlisting language="java">package sda.jdbc.intro.v01;
-
-import ...
-
-public class InsertPerson extends JFrame {
-
-   ...
-
-   public InsertPerson () throws SQLException{
-      super ("Add a person's data");
-
-      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
-
-      final JPanel databaseFieldPanel = new JPanel();
-      databaseFieldPanel.setLayout(new GridLayout(0,2));
-      add(databaseFieldPanel, BorderLayout.CENTER);
-
-      databaseFieldPanel.add(new JLabel("Name:"));
-      final JTextField nameField = new JTextField(15);
-      databaseFieldPanel.add(nameField);
-
-      databaseFieldPanel.add(new JLabel("E-mail:"));
-      final JTextField emailField = new JTextField(15);
-      databaseFieldPanel.add(emailField);
-
-      final JButton insertButton = new JButton("Insert");
-      add(insertButton, BorderLayout.SOUTH);
-
-      final Connection conn = DriverManager.getConnection(
-            "jdbc:mysql://localhost:3306/hdm", "hdmuser", "XYZ");
-      final Statement stmt = conn.createStatement();
-
-      insertButton.addActionListener(new ActionListener() {
-         // Linking the GUI to the database server. We assume an open
-         // connection and a correctly initialized Statement instance
-         @Override
-         public void actionPerformed(ActionEvent event) {
-            final String sql = "INSERT INTO Person VALUES('" + nameField.getText()+ "', '" 
-                  + emailField.getText() +  "')";
-            // We have to catch this Exception because an ActionListener's signature
-            // prohibits the existence of a "throws" clause.
-            try {
-               final int updateCount = stmt.executeUpdate(sql);
-               JOptionPane.showMessageDialog(null, "Successfully executed \n'" + sql + "'\nand inserted "
-                     + updateCount + " dataset");
-            } catch (SQLException e) {
-               e.printStackTrace();
-            }
-         }
-      });
-      pack();
-   }
-}</programlisting>
+              <classname>P/Sda1/InsertGui/V2</classname>. The included
+              README.md contains hints with respect to starting this
+              application.</para>
+
+              <para>Notice the separation of problem related messages:</para>
+
+              <programlisting language="java">  ...    } catch (SQLException ex) {
+            Notification.show("Failed to insert record, see log for details", Notification.Type.ERROR_MESSAGE); <co
+                  linkends="sda1JdbcMsgEnduserProgrammer-1"
+                  xml:id="sda1JdbcMsgEnduserProgrammer-1-co"/>
+            log.error("JDBC exception on data insert:", ex); <co
+                  linkends="sda1JdbcMsgEnduserProgrammer-2"
+                  xml:id="sda1JdbcMsgEnduserProgrammer-2-co"/>
+         }</programlisting>
+
+              <calloutlist>
+                <callout arearefs="sda1JdbcMsgEnduserProgrammer-1-co"
+                         xml:id="sda1JdbcMsgEnduserProgrammer-1">
+                  <para>General message to the end-user.</para>
+                </callout>
+
+                <callout arearefs="sda1JdbcMsgEnduserProgrammer-2-co"
+                         xml:id="sda1JdbcMsgEnduserProgrammer-2">
+                  <para>Detailed message to the application developer.</para>
+                </callout>
+              </calloutlist>
             </answer>
           </qandaentry>
         </qandadiv>
diff --git a/P/Sda1/InsertGui/V2/.gitignore b/P/Sda1/InsertGui/V2/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..c761c2a942224cfaf1bb828ca7fe53c6def3f153
--- /dev/null
+++ b/P/Sda1/InsertGui/V2/.gitignore
@@ -0,0 +1,6 @@
+/target/
+/.settings/
+src/main/webapp/VAADIN/themes/mytheme/styles.scss.cache
+A1.log
+.classpath
+.project
diff --git a/P/Sda1/InsertGui/V2/README.md b/P/Sda1/InsertGui/V2/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..9c49b3ff962cf92d5198bb8f8eb0394ac2e8454d
--- /dev/null
+++ b/P/Sda1/InsertGui/V2/README.md
@@ -0,0 +1,37 @@
+addressinsert
+==============
+
+Inserting address records into a relational database.
+
+Workflow
+========
+
+To compile the entire project, run "mvn install".
+To run the application, run "mvn jetty:run" and open http://localhost:8080/ .
+
+To develop the theme, simply update the relevant theme files and reload the application.
+Pre-compiling a theme eliminates automatic theme updates at runtime - see below for more information.
+
+Debugging client side code
+  - run "mvn vaadin:run-codeserver" on a separate console while the application is running
+  - activate Super Dev Mode in the debug window of the application
+
+To produce a deployable production mode WAR:
+- change productionMode to true in the servlet class configuration (nested in the UI class)
+- run "mvn clean vaadin:compile-theme package"
+  - See below for more information. Running "mvn clean" removes the pre-compiled theme.
+- test with "mvn jetty:run-war
+
+Using a precompiled theme
+-------------------------
+
+When developing the application, Vaadin can compile the theme on the fly when needed,
+or the theme can be precompiled to speed up page loads.
+
+To precompile the theme run "mvn vaadin:compile-theme". Note, though, that once
+the theme has been precompiled, any theme changes will not be visible until the
+next theme compilation or running the "mvn clean" target.
+
+When developing the theme, running the application in the "run" mode (rather than
+in "debug") in the IDE can speed up consecutive on-the-fly theme compilations
+significantly.
diff --git a/P/Sda1/InsertGui/V2/Schema/schema.sql b/P/Sda1/InsertGui/V2/Schema/schema.sql
new file mode 100644
index 0000000000000000000000000000000000000000..327a0f5ea7e0ed01a24e5ceb86bf2aa646a2f5da
--- /dev/null
+++ b/P/Sda1/InsertGui/V2/Schema/schema.sql
@@ -0,0 +1,7 @@
+CREATE TABLE Person (
+   name CHAR(20) NOT NULL,
+   email CHAR(20) PRIMARY KEY
+
+);
+
+SELECT * FROM Person;
\ No newline at end of file
diff --git a/P/Sda1/InsertGui/V2/pom.xml b/P/Sda1/InsertGui/V2/pom.xml
new file mode 100644
index 0000000000000000000000000000000000000000..f7cb9ca6519b1301ecc981269c3d179071910686
--- /dev/null
+++ b/P/Sda1/InsertGui/V2/pom.xml
@@ -0,0 +1,214 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>de.hdm-stuttgart.mi</groupId>
+    <artifactId>lecturenotes-pom</artifactId>
+    <version>1.0</version>
+    <relativePath>../../../pom.xml</relativePath>
+  </parent>
+
+	<groupId>de.hdm_stuttgart.mi</groupId>
+	<artifactId>addressinsert</artifactId>
+	<packaging>war</packaging>
+	<version>0.9</version>
+	<name>addressinsert</name>
+
+	<properties>
+		<vaadin.version>7.5.7</vaadin.version>
+		<vaadin.plugin.version>${vaadin.version}</vaadin.plugin.version>
+		<jetty.plugin.version>9.2.3.v20140905</jetty.plugin.version>
+		<project.source.version>1.8</project.source.version>
+		<project.target.version>1.8</project.target.version>
+		<project.encoding>UTF-8</project.encoding>
+	</properties>
+
+	<repositories>
+		<repository>
+			<id>vaadin-addons</id>
+			<url>http://maven.vaadin.com/vaadin-addons</url>
+		</repository>
+		<repository>
+			<id>vaadin-snapshots</id>
+			<url>https://oss.sonatype.org/content/repositories/vaadin-snapshots/</url>
+			<releases>
+				<enabled>false</enabled>
+			</releases>
+			<snapshots>
+				<enabled>true</enabled>
+			</snapshots>
+		</repository>
+	</repositories>
+
+	<dependencyManagement>
+		<dependencies>
+			<dependency>
+				<groupId>com.vaadin</groupId>
+				<artifactId>vaadin-bom</artifactId>
+				<version>${vaadin.version}</version>
+				<type>pom</type>
+				<scope>import</scope>
+			</dependency>
+		</dependencies>
+	</dependencyManagement>
+
+	<dependencies>
+		<dependency>
+			<groupId>javax.servlet</groupId>
+			<artifactId>javax.servlet-api</artifactId>
+			<version>3.0.1</version>
+			<scope>provided</scope>
+		</dependency>
+		<dependency>
+			<groupId>com.vaadin</groupId>
+			<artifactId>vaadin-server</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>com.vaadin</groupId>
+			<artifactId>vaadin-push</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>com.vaadin</groupId>
+			<artifactId>vaadin-client</artifactId>
+			<scope>provided</scope>
+		</dependency>
+		<!-- Needed when using the widgetset optimizer (custom ConnectorBundleLoaderFactory). 
+			For widgetset compilation, vaadin-client-compiler is automatically added 
+			on the compilation classpath by vaadin-maven-plugin so normally there is 
+			no need for an explicit dependency. -->
+		<!-- <dependency> <groupId>com.vaadin</groupId> <artifactId>vaadin-client-compiler</artifactId> 
+			<scope>provided</scope> </dependency> -->
+		<dependency>
+			<groupId>com.vaadin</groupId>
+			<artifactId>vaadin-themes</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>mysql</groupId>
+			<artifactId>mysql-connector-java</artifactId>
+			<version>5.1.35</version>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-resources-plugin</artifactId>
+				<version>2.6</version>
+				<configuration>
+					<encoding>${project.encoding}</encoding>
+				</configuration>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-war-plugin</artifactId>
+				<version>2.3</version>
+				<configuration>
+					<failOnMissingWebXml>false</failOnMissingWebXml>
+					<!-- Exclude some unnecessary files generated by the GWT compiler. -->
+					<packagingExcludes>WEB-INF/classes/VAADIN/gwt-unitCache/**,
+						WEB-INF/classes/VAADIN/widgetsets/WEB-INF/**</packagingExcludes>
+				</configuration>
+			</plugin>
+			<plugin>
+				<groupId>com.vaadin</groupId>
+				<artifactId>vaadin-maven-plugin</artifactId>
+				<version>${vaadin.plugin.version}</version>
+				<configuration>
+					<extraJvmArgs>-Xmx512M -Xss1024k</extraJvmArgs>
+					<webappDirectory>${basedir}/target/classes/VAADIN/widgetsets</webappDirectory>
+					<draftCompile>false</draftCompile>
+					<compileReport>false</compileReport>
+					<style>OBF</style>
+					<strict>true</strict>
+				</configuration>
+				<executions>
+					<execution>
+						<goals>
+							<goal>update-theme</goal>
+							<goal>update-widgetset</goal>
+							<goal>compile</goal>
+							<!-- disabled by default to use on-the-fly theme compilation -->
+							<!-- <goal>compile-theme</goal> -->
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-source-plugin</artifactId>
+				<version>2.4</version>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-clean-plugin</artifactId>
+				<version>2.6.1</version>
+				<!-- Clean up also any pre-compiled themes -->
+				<configuration>
+					<filesets>
+						<fileset>
+							<directory>src/main/webapp/VAADIN/themes</directory>
+							<includes>
+								<include>**/styles.css</include>
+								<include>**/styles.scss.cache</include>
+							</includes>
+						</fileset>
+					</filesets>
+				</configuration>
+			</plugin>
+
+			<!-- The Jetty plugin allows us to easily test the development build by 
+				running jetty:run on the command line. -->
+			<plugin>
+				<groupId>org.eclipse.jetty</groupId>
+				<artifactId>jetty-maven-plugin</artifactId>
+				<version>${jetty.plugin.version}</version>
+				<configuration>
+					<scanIntervalSeconds>2</scanIntervalSeconds>
+				</configuration>
+			</plugin>
+		</plugins>
+
+		<pluginManagement>
+			<plugins>
+				<!--This plugin's configuration is used to store Eclipse m2e settings 
+					only. It has no influence on the Maven build itself. -->
+				<!-- TODO Remove when http://dev.vaadin.com/ticket/14924 is resolved -->
+				<plugin>
+					<groupId>org.eclipse.m2e</groupId>
+					<artifactId>lifecycle-mapping</artifactId>
+					<version>1.0.0</version>
+					<configuration>
+						<lifecycleMappingMetadata>
+							<pluginExecutions>
+								<pluginExecution>
+									<pluginExecutionFilter>
+										<groupId>com.vaadin</groupId>
+										<artifactId>
+											vaadin-maven-plugin
+										</artifactId>
+										<versionRange>[7.1.11,)</versionRange>
+										<goals>
+											<goal>resources</goal>
+											<goal>update-widgetset</goal>
+											<goal>compile</goal>
+											<goal>compile-theme</goal>
+											<goal>update-theme</goal>
+										</goals>
+									</pluginExecutionFilter>
+									<action>
+										<ignore></ignore>
+									</action>
+								</pluginExecution>
+							</pluginExecutions>
+						</lifecycleMappingMetadata>
+					</configuration>
+				</plugin>
+			</plugins>
+		</pluginManagement>
+
+	</build>
+
+</project>
diff --git a/P/Sda1/InsertGui/V2/src/main/java/de/hdm_stuttgart/mi/LoginUI.java b/P/Sda1/InsertGui/V2/src/main/java/de/hdm_stuttgart/mi/LoginUI.java
new file mode 100644
index 0000000000000000000000000000000000000000..83239ed5adf61ca0f284f26b568ebf7eeb9390fb
--- /dev/null
+++ b/P/Sda1/InsertGui/V2/src/main/java/de/hdm_stuttgart/mi/LoginUI.java
@@ -0,0 +1,109 @@
+package de.hdm_stuttgart.mi;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.sql.Statement;
+
+import javax.servlet.annotation.WebServlet;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import com.vaadin.annotations.Theme;
+import com.vaadin.annotations.VaadinServletConfiguration;
+import com.vaadin.annotations.Widgetset;
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.server.VaadinServlet;
+import com.vaadin.server.ClientConnector.DetachListener;
+import com.vaadin.ui.Button;
+import com.vaadin.ui.GridLayout;
+import com.vaadin.ui.Label;
+import com.vaadin.ui.Notification;
+import com.vaadin.ui.TextField;
+import com.vaadin.ui.UI;
+
+@Theme("mytheme")
+@Widgetset("de.hdm_stuttgart.mi.MyAppWidgetset")
+public class LoginUI extends UI implements DetachListener {
+
+   private static final long serialVersionUID = 9013400739498375365L;
+   
+   private static Logger log = LogManager.getLogger(LoginUI.class);
+
+   Statement stmt;
+
+	public LoginUI () {
+	   final String jdbcUrl = "jdbc:mysql://localhost:3306/hdm";
+	   try {
+		final Connection conn = DriverManager.getConnection(
+				jdbcUrl, "hdmuser", "XYZ");
+		stmt = conn.createStatement();
+	   } catch (SQLException ex) {
+	      log.error("Unable to connect to database using '" + jdbcUrl + "':", ex);
+	      stmt = null;
+	   }
+	}
+	
+	@Override
+	public void detach(DetachEvent event) {
+	   if (null != stmt) {
+	      try {
+	         stmt.getConnection().close();
+	      } catch (final SQLException ex) {
+	         log.error("Unable to disconnect from database:", ex);
+	      }
+	      stmt = null;
+	   }
+	}
+
+	private final TextField
+	   nameField = new TextField(), 
+	   emailField = new TextField();
+
+	private Button
+	   insertButton = new Button("Insert");
+
+	@Override
+	protected void init(final VaadinRequest vaadinRequest) {
+		final GridLayout layout = new GridLayout(2, 3);
+		layout.setMargin(true);
+		setContent(layout);
+
+      if (null == stmt) {
+         layout.addComponent(new Label("Unable to connect to database server, see log for details"), 0, 0);
+         return;
+      }
+
+		layout.addComponent(new Label("Name:"), 0, 0);
+		layout.addComponent(nameField, 1, 0);
+
+		layout.addComponent(new Label("Email:"), 0, 1);
+		layout.addComponent(emailField, 1, 1);
+
+		layout.addComponent(insertButton, 1, 2);
+		
+		
+		insertButton.addClickListener(event -> {
+		   final String sql = "INSERT INTO Person VALUES('" + nameField.getValue() + "', '" 
+               + emailField.getValue() +  "')";
+         // We have to swallow this Exception because an ActionListener's signature
+         // does not allow for a "throws" clause.
+         try {
+            final int updateCount = stmt.executeUpdate(sql);
+            Notification.show("Successfully executed \n'" + sql + "'\nand inserted "
+                  + updateCount + " dataset");
+
+         } catch (SQLException ex) {
+            Notification.show("Failed to insert record, see log for details", Notification.Type.ERROR_MESSAGE);
+            log.error("JDBC exception on data insert:", ex);
+         }		   
+		});
+	}
+
+	@WebServlet(urlPatterns = "/*", name = "LoginUIServlet", asyncSupported = true)
+	@VaadinServletConfiguration(ui = LoginUI.class, productionMode = false)
+	public static class LoginUIServlet extends VaadinServlet {
+		private static final long serialVersionUID = -8657597788907698974L;
+	}
+}
diff --git a/P/Sda1/InsertGui/V2/src/main/resources/de/hdm_stuttgart/mi/MyAppWidgetset.gwt.xml b/P/Sda1/InsertGui/V2/src/main/resources/de/hdm_stuttgart/mi/MyAppWidgetset.gwt.xml
new file mode 100644
index 0000000000000000000000000000000000000000..763aa41e875c8cb9f06805d0de49ee09e2c72cdf
--- /dev/null
+++ b/P/Sda1/InsertGui/V2/src/main/resources/de/hdm_stuttgart/mi/MyAppWidgetset.gwt.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 2.5.1//EN"
+        "http://google-web-toolkit.googlecode.com/svn/tags/2.5.1/distro-source/core/src/gwt-module.dtd">
+<module>
+    <inherits name="com.vaadin.DefaultWidgetSet"/>
+</module>
diff --git a/P/Sda1/InsertGui/V2/src/main/resources/log4j2.xml b/P/Sda1/InsertGui/V2/src/main/resources/log4j2.xml
new file mode 100644
index 0000000000000000000000000000000000000000..0988632e7e5ed4f9d05e7a410407e129220d1c87
--- /dev/null
+++ b/P/Sda1/InsertGui/V2/src/main/resources/log4j2.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration>
+    
+    <Properties>
+        <Property></Property>
+    </Properties>
+    <ThresholdFilter/>
+    
+    <Appenders>
+        
+        <File name="A1" fileName="A1.log" append="false">
+            <PatternLayout pattern="%t %-5p %c{2} - %m%n"/>
+        </File>
+        <Console name="STDOUT" target="SYSTEM_OUT">
+            <PatternLayout pattern="%C{2} (%F:%L) - %m%n"/>
+        </Console>
+    </Appenders>
+    <Loggers>
+
+        <!-- You my want to define class or package level per-logger rules -->
+        <Logger name="de.hdm_stuttgart.mi.sda1.xmlstatistics.App" level="info">
+            <AppenderRef ref="STDOUT"/>
+        </Logger>
+        <Root level="info">
+            <AppenderRef ref="A1"/>
+        </Root>
+    </Loggers>
+</Configuration>
\ No newline at end of file
diff --git a/P/Sda1/InsertGui/V2/src/main/webapp/VAADIN/themes/mytheme/addons.scss b/P/Sda1/InsertGui/V2/src/main/webapp/VAADIN/themes/mytheme/addons.scss
new file mode 100644
index 0000000000000000000000000000000000000000..a5670b70c7eabbe8cf233f10dc9bfeb2fac29f41
--- /dev/null
+++ b/P/Sda1/InsertGui/V2/src/main/webapp/VAADIN/themes/mytheme/addons.scss
@@ -0,0 +1,7 @@
+/* This file is automatically managed and will be overwritten from time to time. */
+/* Do not manually edit this file. */
+
+/* Import and include this mixin into your project theme to include the addon themes */
+@mixin addons {
+}
+
diff --git a/P/Sda1/InsertGui/V2/src/main/webapp/VAADIN/themes/mytheme/favicon.ico b/P/Sda1/InsertGui/V2/src/main/webapp/VAADIN/themes/mytheme/favicon.ico
new file mode 100644
index 0000000000000000000000000000000000000000..ffb34a65c73eb1b3d59dcbb8f18ec78a8b0fc767
Binary files /dev/null and b/P/Sda1/InsertGui/V2/src/main/webapp/VAADIN/themes/mytheme/favicon.ico differ
diff --git a/P/Sda1/InsertGui/V2/src/main/webapp/VAADIN/themes/mytheme/mytheme.scss b/P/Sda1/InsertGui/V2/src/main/webapp/VAADIN/themes/mytheme/mytheme.scss
new file mode 100644
index 0000000000000000000000000000000000000000..c6aa865f29e4eefba17a1b5e5735c665d4ba87c2
--- /dev/null
+++ b/P/Sda1/InsertGui/V2/src/main/webapp/VAADIN/themes/mytheme/mytheme.scss
@@ -0,0 +1,36 @@
+// Global variable overrides. Must be declared before importing Valo.
+
+// Defines the plaintext font size, weight and family. Font size affects general component sizing.
+//$v-font-size: 16px;
+//$v-font-weight: 300;
+//$v-font-family: "Open Sans", sans-serif;
+
+// Defines the border used by all components.
+//$v-border: 1px solid (v-shade 0.7);
+//$v-border-radius: 4px;
+
+// Affects the color of some component elements, e.g Button, Panel title, etc
+//$v-background-color: hsl(210, 0%, 98%);
+// Affects the color of content areas, e.g  Panel and Window content, TextField input etc
+//$v-app-background-color: $v-background-color;
+
+// Affects the visual appearance of all components
+//$v-gradient: v-linear 8%;
+//$v-bevel-depth: 30%;
+//$v-shadow-opacity: 5%;
+
+// Defines colors for indicating status (focus, success, failure)
+//$v-focus-color: valo-focus-color(); // Calculates a suitable color automatically
+//$v-friendly-color: #2c9720;
+//$v-error-indicator-color: #ed473b;
+
+// For more information, see: https://vaadin.com/book/-/page/themes.valo.html
+// Example variants can be copy/pasted from https://vaadin.com/wiki/-/wiki/Main/Valo+Examples
+
+@import "../valo/valo.scss";
+
+@mixin mytheme {
+  @include valo;
+
+  // Insert your own theme rules here
+}
diff --git a/P/Sda1/InsertGui/V2/src/main/webapp/VAADIN/themes/mytheme/styles.scss b/P/Sda1/InsertGui/V2/src/main/webapp/VAADIN/themes/mytheme/styles.scss
new file mode 100644
index 0000000000000000000000000000000000000000..bba1d493c0c0dad0be8dae040a2007535c8720ad
--- /dev/null
+++ b/P/Sda1/InsertGui/V2/src/main/webapp/VAADIN/themes/mytheme/styles.scss
@@ -0,0 +1,11 @@
+@import "mytheme.scss";
+@import "addons.scss";
+
+// This file prefixes all rules with the theme name to avoid causing conflicts with other themes.
+// The actual styles should be defined in mytheme.scss
+
+.mytheme {
+  @include addons;
+  @include mytheme;
+
+}
diff --git a/ws/eclipse/Jdbc/src/main/java/sda/jdbc/intro/v01/InsertPerson.java b/ws/eclipse/Jdbc/src/main/java/sda/jdbc/intro/v01/InsertPerson.java
deleted file mode 100644
index c2bfaf5fcc9c774ca9a5704071bebf03d1e9eea6..0000000000000000000000000000000000000000
--- a/ws/eclipse/Jdbc/src/main/java/sda/jdbc/intro/v01/InsertPerson.java
+++ /dev/null
@@ -1,72 +0,0 @@
-package sda.jdbc.intro.v01;
-
-import java.awt.BorderLayout;
-import java.awt.GridLayout;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-import java.sql.Connection;
-import java.sql.DriverManager;
-import java.sql.SQLException;
-import java.sql.Statement;
-
-import javax.swing.JButton;
-import javax.swing.JFrame;
-import javax.swing.JLabel;
-import javax.swing.JOptionPane;
-import javax.swing.JPanel;
-import javax.swing.JTextField;
-
-public class InsertPerson extends JFrame {
-
-   private static final long serialVersionUID = -5427181942099955412L;
-
-   public static void main(String[] args) throws SQLException {
-      InsertPerson app = new InsertPerson();
-      app.setVisible(true);
-   }
-
-   public InsertPerson () throws SQLException{
-      super ("Add a person's data");
-
-      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
-
-      final JPanel databaseFieldPanel = new JPanel();
-      databaseFieldPanel.setLayout(new GridLayout(0,2));
-      add(databaseFieldPanel, BorderLayout.CENTER);
-
-      databaseFieldPanel.add(new JLabel("Name:"));
-      final JTextField nameField = new JTextField(15);
-      databaseFieldPanel.add(nameField);
-
-      databaseFieldPanel.add(new JLabel("E-mail:"));
-      final JTextField emailField = new JTextField(15);
-      databaseFieldPanel.add(emailField);
-
-      final JButton insertButton = new JButton("Insert");
-      add(insertButton, BorderLayout.SOUTH);
-
-      final Connection conn = DriverManager.getConnection(
-            "jdbc:mysql://localhost:3306/hdm", "hdmuser", "XYZ");
-      final Statement stmt = conn.createStatement();
-
-      insertButton.addActionListener(new ActionListener() {
-         // Linking the GUI to the database server. We assume an open
-         // connection and a correctly initialized Statement instance
-         @Override
-         public void actionPerformed(ActionEvent event) {
-            final String sql = "INSERT INTO Person VALUES('" + nameField.getText()+ "', '" 
-                  + emailField.getText() +  "')";
-            // We have to catch this Exception because an ActionListener's signature
-            // prohibits the existence of a "throws" clause.
-            try {
-               final int updateCount = stmt.executeUpdate(sql);
-               JOptionPane.showMessageDialog(null, "Successfully executed \n'" + sql + "'\nand inserted "
-                     + updateCount + " dataset");
-            } catch (SQLException e) {
-               e.printStackTrace();
-            }
-         }
-      });
-      pack();
-   }
-}