HADOOP-15040 Upgrade AWS SDK to 1.11.271: NPE bug spams logs w/ Yarn Log Aggregation

hadoop-project/pom.xml

@@ -137,7 +137,7 @@
     <make-maven-plugin.version>1.0-beta-1</make-maven-plugin.version>
     <native-maven-plugin.version>1.0-alpha-8</native-maven-plugin.version>
     <surefire.fork.timeout>900</surefire.fork.timeout>
-    <aws-java-sdk.version>1.11.199</aws-java-sdk.version>
+    <aws-java-sdk.version>1.11.271</aws-java-sdk.version>
     <hsqldb.version>2.3.4</hsqldb.version>
     <frontend-maven-plugin.version>1.5</frontend-maven-plugin.version>
     <!-- the version of Hadoop declared in the version resources; can be overridden