Index: data/data-library/pom.xml
===================================================================
--- data/data-library/pom.xml	(Revision 1590863)
+++ data/data-library/pom.xml	(Arbeitskopie)
@@ -94,11 +94,6 @@
             <scope>test</scope>
             <type>test-jar</type>
         </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-simple</artifactId>
-            <scope>test</scope>
-        </dependency>
     </dependencies>
 
     <build>
Index: pom.xml
===================================================================
--- pom.xml	(Revision 1590863)
+++ pom.xml	(Arbeitskopie)
@@ -1214,15 +1214,18 @@
     <build>
         <plugins>
             <plugin>
-                <groupId>org.apache.felix</groupId>
-                <artifactId>maven-bundle-plugin</artifactId>
-                <extensions>true</extensions>
-            </plugin>
-            <plugin>
                 <artifactId>versions-maven-plugin</artifactId>
                 <version>2.0</version>
             </plugin>
             <plugin>
+                <artifactId>maven-jar-plugin</artifactId>
+                <version>2.4</version>
+                <configuration>
+                    <!-- avoid race with bundle plugin manifest (known bug): -->
+                    <useDefaultManifestFile>true</useDefaultManifestFile>
+                </configuration>
+            </plugin>
+            <plugin>
                 <artifactId>maven-release-plugin</artifactId>
                 <configuration>
                     <!-- During release:perform, enable the "release" profile -->
@@ -1256,6 +1259,11 @@
                 </lifecycleMappingMetadata>
               </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.apache.felix</groupId>
+                <artifactId>maven-bundle-plugin</artifactId>
+                <version>2.4.0</version>
+            </plugin>
           </plugins>
         </pluginManagement>
     </build>
@@ -1270,5 +1278,37 @@
                 <javax.mail.artifactId>mail</javax.mail.artifactId>
             </properties>
         </profile>
+        <profile>
+            <!-- TODO: fix dependency convergency, maybe activate this profile
+            in jenkins by default -->
+            <id>enforce</id>
+            <build>
+                <plugins>
+                    <plugin>
+                        <artifactId>maven-enforcer-plugin</artifactId>
+                        <version>1.3.1</version>
+                        <executions>
+                            <execution>
+                                <id>enforce-sane-versions</id>
+                                <goals>
+                                    <goal>enforce</goal>
+                                </goals>
+                                <configuration>
+                                    <rules>
+                                        <requirePluginVersions />
+                                        <dependencyConvergence />
+                                        <requireUpperBoundDeps />
+                                        <requireReleaseDeps>
+                                            <message>No Snapshots Allowed!</message>
+                                            <onlyWhenRelease>true</onlyWhenRelease>
+                                        </requireReleaseDeps>
+                                    </rules>
+                                </configuration>
+                            </execution>
+                        </executions>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
     </profiles>
 </project>