Fix javadoc on java 11

bitwiseman · bitwiseman · commit 5f967e6307b9 · 2019-10-31T17:41:05.000-07:00
diff --git a/pom.xml b/pom.xml
@@ -76,6 +76,9 @@
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-javadoc-plugin</artifactId>
           <version>3.1.1</version>
+          <configuration>
+            <source>8</source>
+          </configuration>
         </plugin>
       </plugins>
     </pluginManagement>
