diff --git a/Doc/Sd1/Ref/ObjectsAndClasses/Tests/cautionEqualsDouble.png b/Doc/Sd1/Ref/ObjectsAndClasses/Tests/cautionEqualsDouble.png
new file mode 100644
index 0000000000000000000000000000000000000000..676b540fbe8b8b2340eecd56a7eb7c6df8076af5
Binary files /dev/null and b/Doc/Sd1/Ref/ObjectsAndClasses/Tests/cautionEqualsDouble.png differ
diff --git a/Doc/Sd1/objectsClasses.xml b/Doc/Sd1/objectsClasses.xml
index ab796f519a3cdfef3fcd0fb28dfa20a0f1d232d8..fabb3dff674ba761d7bc2b98e41e9da1ab9ca740 100644
--- a/Doc/Sd1/objectsClasses.xml
+++ b/Doc/Sd1/objectsClasses.xml
@@ -9005,8 +9005,6 @@ static public int getFirstNegative(int a, int b) {
           <imagedata fileref="Ref/ObjectsAndClasses/Tests/SpecTestResult3.png"/>
         </imageobject>
       </mediaobject>
-
-      <para>Yeah! Conquer next level ...</para>
     </figure>
 
     <figure xml:id="sd1_fig_availableResultMethods">
@@ -9051,6 +9049,71 @@ static public int getFirstNegative(int a, int b) {
       </itemizedlist>
     </figure>
 
+    <figure xml:id="sd1_fig_junitCli">
+      <title><xref linkend="glo_Maven"/> command line usage</title>
+
+      <screen>goik@goiki V1&gt; mvn test
+[INFO] Scanning for projects...
+...   -------------------------------------------------
+ T E S T S
+-------------------------------------------------------
+Running de.hdm_stuttgart.mi.sd1.store.TestPrimes
+Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, ...
+
+Results :
+
+Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
+[INFO] ------------------------------------------------
+[INFO] BUILD SUCCESS</screen>
+    </figure>
+
+    <figure xml:id="sd1_fig_equalsDoubleCaveat">
+      <title>Caution comparing <code>float</code> /
+      <code>double</code></title>
+
+      <mediaobject>
+        <imageobject>
+          <imagedata fileref="Ref/ObjectsAndClasses/Tests/cautionEqualsDouble.png"/>
+        </imageobject>
+      </mediaobject>
+    </figure>
+
+    <figure xml:id="sd1_fig_equalsDoubleCaveatResult">
+      <title>Weird arithmetics?</title>
+
+      <screen>java.lang.AssertionError: Use assertEquals(expected, actual, delta)
+  to compare floating-point numbers
+
+at org.junit.Assert.assertEquals(Assert.java:656)
+at qq.doubleCompareTest.test1_3(<emphasis role="red">doubleCompareTest.java:15</emphasis>)
+...</screen>
+    </figure>
+
+    <figure xml:id="sd1_fig_equalsDoubleCaveatUnderlyingProblem">
+      <title>Limited representation precision</title>
+
+      <programlisting language="java">System.out.println("3.6 - 3 * 1.2 == " + (3.6 - 3 * 1.2));</programlisting>
+
+      <para>Result:</para>
+
+      <screen>3.6 - 3 * 1.2 == 4.440892098500626E-16</screen>
+    </figure>
+
+    <figure xml:id="sd1_fig_equalsDoubleSolve">
+      <title>Solving the issue</title>
+
+      <programlisting language="java">public class doubleCompareTest {
+  static final double delta = 1E-15;
+  /**
+   * Comparing 3.6 and 3.6 within delta's limit
+   */
+  @Test
+  public void test1_3() {
+    Assert.assertEquals(3.6, 3 * 1.2 , delta);
+  }
+}</programlisting>
+    </figure>
+
     <qandaset defaultlabel="qanda" xml:id="sd1QandaSumInteger">
       <title>Summing up integers to a given limit</title>