Fixed tests.

Change-Id: If5db5dff398a127119e04cf2a84ece21a3127190
diff --git a/pom.xml b/pom.xml
index 9a0ed8b..a9b7ae7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -69,10 +69,15 @@
 		</dependency>
 		<dependency>
 			<groupId>org.slf4j</groupId>
-			<artifactId>slf4j-simple</artifactId>
-			<version>1.7.26</version>
+			<artifactId>slf4j-api</artifactId>
+			<version>1.7.29</version>
 		</dependency>
 		<dependency>
+	        <groupId>org.slf4j</groupId>
+	        <artifactId>slf4j-jdk14</artifactId>
+	        <version>1.7.29</version>
+	    </dependency>
+		<dependency>
 			<groupId>org.apache.directory.studio</groupId>
 			<artifactId>org.apache.commons.lang</artifactId>
 			<version>2.6</version>