Apache Hadoop setXIncludeAware UnsupportedOperationException
In my case it was outdated Maven component dependency on xerces-impl 2.4.0 (due to mockrunner 1.0.3 used on test phase). Following managed dependency added to <dependencyManagemen> section helped.
<dependencyManagement> <dependencies> <dependency> <groupId>xerces</groupId> <artifactId>xercesImpl</artifactId> <version>2.11.0</version> </dependency> </dependencies></dependencyManagement>Hadoop version was 2.3.0. Here is another article which describes similar situation.