Update javadoc for java 8
diff --git a/parent/pom.xml b/parent/pom.xml
index 2fd7989..09c25a6 100644
--- a/parent/pom.xml
+++ b/parent/pom.xml
@@ -255,6 +255,17 @@
                         </execution>
                     </executions>
                 </plugin>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-javadoc-plugin</artifactId>
+                    <version>2.10.3</version>
+                    <configuration>
+                        <attach>true</attach>
+                        <quiet>true</quiet>
+                        <encoding>UTF-8</encoding>
+                        <additionalparam>-Xdoclint:none</additionalparam>
+                    </configuration>
+                </plugin>
             </plugins>
         </pluginManagement>