Update dependency org.apache.maven.plugins:maven-compiler-plugin to v3

pom.xml

@@ -43,7 +43,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>2.3.2</version>
+                <version>3.12.1</version>
                 <configuration>
                     <source>1.7</source>
                     <target>1.7</target>