Update for empty javadoc publication.

Author: beebs-systap

bigdata-runtime/pom.xml

@@ -90,6 +90,24 @@ Copyright 2010 by TalkingTrends (Amsterdam, The Netherlands)
           </execution>
         </executions>
       </plugin>
+      <!-- Empty javadoc for maven central deployment. -->
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-jar-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>empty-javadoc-jar</id>
+            <phase>package</phase>
+            <goals>
+              <goal>jar</goal>
+            </goals>
+            <configuration>
+              <classifier>javadoc</classifier>
+              <classesDirectory>${basedir}/src/main/resources</classesDirectory>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-shade-plugin</artifactId>