Fix javadoc generation

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1751902 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 46372c9..2325781 100644
--- a/pom.xml
+++ b/pom.xml
@@ -62,10 +62,18 @@
                         <Private-Package>
                             org.apache.sling.servlets.get.*
                         </Private-Package>
-
                     </instructions>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-javadoc-plugin</artifactId>
+                <configuration>
+                    <excludePackageNames>
+                        org.apache.sling.servlets.get.impl
+                    </excludePackageNames>
+                </configuration>
+            </plugin>
         </plugins>
     </build>
     <dependencies>