In top-level "pom.xml", use new versions for "commons-configuration2" and...

In top-level "pom.xml", use new versions for "commons-configuration2" and "commons-beanutils" to avoid logging a stack trace

pom.xml

@@ -141,12 +141,12 @@
       <dependency>
           <groupId>org.apache.commons</groupId>
           <artifactId>commons-configuration2</artifactId>
-          <version>2.0</version>
+          <version>2.6</version>
       </dependency>
       <dependency>
           <groupId>commons-beanutils</groupId>
           <artifactId>commons-beanutils</artifactId>
-          <version>1.9.2</version>
+          <version>1.9.4</version>
       </dependency>
       <!-- reading and writing csv-files -->
       <dependency>