diff --git a/hadoop-ozone/dev-support/checks/build.sh b/hadoop-ozone/dev-support/checks/build.sh
index 7e9a9d5cbf27..ac524f755e32 100755
--- a/hadoop-ozone/dev-support/checks/build.sh
+++ b/hadoop-ozone/dev-support/checks/build.sh
@@ -14,5 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+set -eu -o pipefail
+
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
 source "${DIR}"/_build.sh install "$@"
diff --git a/hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/upgrade/UpgradeActionRecon.java b/hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/upgrade/UpgradeActionRecon.java
index 749e5f5c0673..11a6c16e1989 100644
--- a/hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/upgrade/UpgradeActionRecon.java
+++ b/hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/upgrade/UpgradeActionRecon.java
@@ -42,15 +42,12 @@
  * Example usage:
  *
  * <pre>
- * {@code
- *
- * @UpgradeActionRecon(feature = FEATURE_NAME, type = FINALIZE)
- *  public class FeatureNameUpgradeAction implements ReconUpgradeAction {
- *     @Override
- *     public void execute() throws Exception {
- *       // Custom upgrade logic for FEATURE_1
- *     }
- *  }
+ * &#64;UpgradeActionRecon(feature = FEATURE_NAME, type = FINALIZE)
+ * public class FeatureNameUpgradeAction implements ReconUpgradeAction {
+ *   &#64;Override
+ *   public void execute() throws Exception {
+ *     // Custom upgrade logic for FEATURE_1
+ *   }
  * }
  * </pre>
  */