HADOOP-13083. The number of javadocs warnings is limited to 100. (Gergely Novák via gtcarrera9)

hadoop-project/pom.xml

@@ -1060,6 +1060,9 @@
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-javadoc-plugin</artifactId>
           <version>2.8.1</version>
+          <configuration>
+            <additionalparam>-Xmaxwarns 10000</additionalparam>
+          </configuration>
         </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>