Fail compilation on warnings and use of deprecated API

pom.xml

@@ -215,13 +215,14 @@
 			<plugin>
 				<inherited>true</inherited>
 				<artifactId>maven-compiler-plugin</artifactId>
-				<version>3.3</version>
+				<version>3.6.1</version>
 				<configuration>
 					<source>${jdk.source}</source>
 					<target>${jdk.target}</target>
 					<optimize>true</optimize>
-					<showDeprecation>${show.deprecations}</showDeprecation>
 					<showWarnings>true</showWarnings>
+					<showDeprecation>true</showDeprecation>
+					<failOnWarning>true</failOnWarning>
 				</configuration>
 			</plugin>
 			<plugin>