diff --git a/Sda1/Etest/SaxMemo2Html/SaxMemo2Hhtml_solution/src/test/java/de/hdm_stuttgart/de/testing/dom/ConversionTest.java b/Sda1/Etest/SaxMemo2Html/SaxMemo2Hhtml_solution/src/test/java/de/hdm_stuttgart/de/testing/dom/ConversionTest.java
index 0192d64b082e09e34d9c4f2ff224a5e3cc0a741b..bad5fac8917716f87d5b1242a7bc8d5e264db794 100644
--- a/Sda1/Etest/SaxMemo2Html/SaxMemo2Hhtml_solution/src/test/java/de/hdm_stuttgart/de/testing/dom/ConversionTest.java
+++ b/Sda1/Etest/SaxMemo2Html/SaxMemo2Hhtml_solution/src/test/java/de/hdm_stuttgart/de/testing/dom/ConversionTest.java
@@ -1,7 +1,6 @@
 package de.hdm_stuttgart.de.testing.dom;
 
 import java.io.BufferedReader;
-import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.FileReader;
 import java.io.IOException;
@@ -24,69 +23,74 @@ import de.hdm_stuttgart.mi.sda1.saxhtml.v1.Memo2Html;
 @SuppressWarnings("javadoc")
 public abstract class ConversionTest {
 
-   public final String xmlInputFileName, htmlOutputFileName;
-   final ContentRedirect saxHandler;
-   protected String errorInitString = null;
+	public final String xmlInputFileName, htmlOutputFileName;
+	final ContentRedirect saxHandler;
+	protected String errorInitString = null;
 
-   protected Element htmlRootElement = null;
+	protected static Element htmlRootElement = null;
 
-   protected ConversionTest(final String xmlInputFileName,
-         final ContentRedirect saxHandler, final String outputExtension) {
-      this.xmlInputFileName = xmlInputFileName;
-      htmlOutputFileName = xmlInputFileName + outputExtension;
-      this.saxHandler = saxHandler;
+	protected ConversionTest(final String xmlInputFileName,
+			final ContentRedirect saxHandler, final String outputExtension) {
+		this.xmlInputFileName = xmlInputFileName;
+		htmlOutputFileName = xmlInputFileName + outputExtension;
+		this.saxHandler = saxHandler;
 
-      final PrintStream out;
+		if (null == htmlRootElement) {
 
-      try {
-         out = new PrintStream(htmlOutputFileName);
-      } catch (FileNotFoundException e1) {
-         errorInitString = "Unable to open file '" + htmlOutputFileName
-               + "' for writing";
-         return;
-      }
-      saxHandler.setOutputStream(out);
-      final Memo2Html memo2html;
-      try {
-         memo2html = new Memo2Html(saxHandler);
-      } catch (SAXException | ParserConfigurationException e2) {
-         e2.printStackTrace();
-         return;
-      }
-      try {
-         memo2html.parse(xmlInputFileName);
-      } catch (IOException e1) {
-         errorInitString = "Unable parse file '" + xmlInputFileName + "'";
-         return;
-      } catch (SAXException e) {
-         e.printStackTrace();
-      }
-      final SAXBuilder parser = new SAXBuilder();
+			final PrintStream out;
 
-      try {
-         htmlRootElement = parser.build(htmlOutputFileName).getRootElement();
-      } catch (JDOMException | IOException e1) {
-         errorInitString = "Unable to parse file '" + htmlOutputFileName
-               + "', see stack trace for further information";
-         e1.printStackTrace();
-      }
-      out.close();
-      printResultToStdout();
-   }
+			try {
+				out = new PrintStream(htmlOutputFileName);
+			} catch (FileNotFoundException e1) {
+				errorInitString = "Unable to open file '" + htmlOutputFileName
+						+ "' for writing";
+				return;
+			}
+			saxHandler.setOutputStream(out);
+			final Memo2Html memo2html;
+			try {
+				memo2html = new Memo2Html(saxHandler);
+			} catch (SAXException | ParserConfigurationException e2) {
+				e2.printStackTrace();
+				return;
+			}
+			try {
+				memo2html.parse(xmlInputFileName);
+			} catch (IOException e1) {
+				errorInitString = "Unable parse file '" + xmlInputFileName
+						+ "'";
+				return;
+			} catch (SAXException e) {
+				e.printStackTrace();
+			}
+			final SAXBuilder parser = new SAXBuilder();
 
-   private void printResultToStdout() {
-      try {
-         BufferedReader saxResult = new BufferedReader(new FileReader(
-               htmlOutputFileName));
-         String line;
-         while (null != (line = saxResult.readLine())) {
-            System.out.println(line);
-         }
-         saxResult.close();
-      } catch (IOException e) {
-         errorInitString = "Unable to open expected result output file '"
-               + htmlOutputFileName + "' :" + e.getLocalizedMessage();
-      }
-   }
+			try {
+				htmlRootElement = parser.build(htmlOutputFileName)
+						.getRootElement();
+			} catch (JDOMException | IOException e1) {
+				errorInitString = "Unable to parse file '" + htmlOutputFileName
+						+ "', see stack trace for further information";
+				e1.printStackTrace();
+			}
+			out.close();
+			printResultToStdout();
+		}
+	}
+
+	private void printResultToStdout() {
+		try {
+			BufferedReader saxResult = new BufferedReader(new FileReader(
+					htmlOutputFileName));
+			String line;
+			while (null != (line = saxResult.readLine())) {
+				System.out.println(line);
+			}
+			saxResult.close();
+		} catch (IOException e) {
+			errorInitString = "Unable to open expected result output file '"
+					+ htmlOutputFileName + "' :" + e.getLocalizedMessage();
+		}
+	}
 
 }
\ No newline at end of file