do not fail on javadoc error

Author: stefanseifert

pom.xml

@@ -601,6 +601,14 @@ under the License.
               <autoReleaseAfterClose>false</autoReleaseAfterClose>
             </configuration>
           </plugin>
+          <!-- skip on javadoc errors -->
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-javadoc-plugin</artifactId>
+            <configuration>
+              <failOnError>false</failOnError>
+            </configuration>
+          </plugin>
         </plugins>
       </build>
     </profile>