HV-1454 Support JDK 9 build 180

Author: gsmet

pom.xml

@@ -344,7 +344,7 @@
         <plugins>
             <plugin>
                 <artifactId>maven-enforcer-plugin</artifactId>
-                <version>1.4.1</version>
+                <version>3.0.0-M1</version>
                 <executions>
                     <execution>
                         <id>enforce-java</id>
@@ -635,7 +635,7 @@
                 </plugin>
                 <plugin>
                     <artifactId>maven-javadoc-plugin</artifactId>
-                    <version>2.10.4</version>
+                    <version>3.0.0-M1</version>
                     <configuration>
                         <docfilessubdirs>true</docfilessubdirs>
                         <javadocDirectory>${project.basedir}/../src/main/javadoc</javadocDirectory>