fix build warnings

Change-Id: I713a5f117dc660550684338f162582089a5d3403
Reviewed-on: http://fulliautomatix.ics.uci.edu:8443/118
Reviewed-by: Inci Cetindil <icetindil@gmail.com>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
diff --git a/asterix-om/pom.xml b/asterix-om/pom.xml
index 0cc0e43..6944d60 100644
--- a/asterix-om/pom.xml
+++ b/asterix-om/pom.xml
@@ -26,7 +26,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-compiler-plugin</artifactId>
-				<version>2.0.2</version>
+				<version>2.3.2</version>
 				<configuration>
 					<source>1.7</source>
 					<target>1.7</target>