diff --git a/src/test/java/org/olat/core/util/xml/XMLDigitalSignatureUtilTest.java b/src/test/java/org/olat/core/util/xml/XMLDigitalSignatureUtilTest.java
index c24d2b36287b4ca0d497799c23af1c798b33dc5e..61cdd7ac87ac4c5bd6791b13d890ba4ffb85f79e 100644
--- a/src/test/java/org/olat/core/util/xml/XMLDigitalSignatureUtilTest.java
+++ b/src/test/java/org/olat/core/util/xml/XMLDigitalSignatureUtilTest.java
@@ -40,6 +40,19 @@ import org.w3c.dom.NodeList;
  */
 public class XMLDigitalSignatureUtilTest {
 	
+	/**
+	 * Preliminary test which read the certificate. The method is used in
+	 * every other test of the class.
+	 * 
+	 * @throws Exception
+	 */
+	@Test
+	public void readCertificatePrivateKeyPair() throws Exception {
+		X509CertificatePrivateKeyPair keyPair = getCertificatePrivateKeyPair();
+		Assert.assertNotNull(keyPair);
+		Assert.assertNotNull(keyPair.getPrivateKey());
+		Assert.assertNotNull(keyPair.getX509Cert());
+	}
 	
 	/**
 	 * Check if the cycle sign -> validation works
diff --git a/src/test/java/org/olat/selenium/BusinessGroupTest.java b/src/test/java/org/olat/selenium/BusinessGroupTest.java
index ca6f172de2312406a3f995c9b55da2cc2e1ff229..ef85b5518b6839ce2be0b7455580b34bd340a205 100644
--- a/src/test/java/org/olat/selenium/BusinessGroupTest.java
+++ b/src/test/java/org/olat/selenium/BusinessGroupTest.java
@@ -801,6 +801,7 @@ public class BusinessGroupTest extends Deployments {
 		Assert.assertEquals(1, participants);
 		Assert.assertEquals(2, waitingList);
 	}
+	
 	/**
 	 * An author create a course, with an enrollment course element. It
 	 * configure it and create 3 groups and set the maximum enrollment counter to 2<br>
@@ -813,7 +814,6 @@ public class BusinessGroupTest extends Deployments {
 	 * @throws IOException
 	 * @throws URISyntaxException
 	 */
-
 	@Test
 	@RunAsClient
 	public void enrollmentWithMultiEnrollment(@InitialPage LoginPage authorLoginPage,