HADOOP-12859. Disable hiding field style checks in class setters. Contributed by Kai Zheng.

(cherry picked from commit 480302b4ba932ff16b88081dac651f0a5c46c09b)
(cherry picked from commit 3fecfe1352e7d8eb5676696ec815ac3be7362c13)

hadoop-build-tools/src/main/resources/checkstyle/checkstyle.xml

@@ -156,6 +156,7 @@
         <module name="EqualsHashCode"/>
         <module name="HiddenField">
           <property name="ignoreConstructorParameter" value="true"/>
+          <property name="ignoreSetter" value="true"/>
         </module>
         <module name="IllegalInstantiation"/>
         <module name="InnerAssignment"/>