HADOOP-17586. Upgrade org.codehaus.woodstox:stax2-api to 4.2.1. (#2769). Contributed by Ayush Saxena.

Signed-off-by: Mingliang Liu <liuml07@apache.org>
 Conflicts:
	LICENSE-binary

hadoop-project/pom.xml

@@ -948,7 +948,7 @@
       <dependency>
         <groupId>org.codehaus.woodstox</groupId>
         <artifactId>stax2-api</artifactId>
-        <version>3.1.4</version>
+        <version>4.2.1</version>
       </dependency>
       <dependency>
         <groupId>com.fasterxml.woodstox</groupId>