Fix API build failure on copyright plugin

Author: aguibert

api/pom.xml

@@ -435,16 +435,12 @@
                 <plugin>
                     <groupId>org.glassfish.copyright</groupId>
                     <artifactId>glassfish-copyright-maven-plugin</artifactId>
-                    <version>1.50</version>
+                    <version>2.3</version>
                     <configuration>
                         <excludeFile>${basedir}/../etc/config/copyright-exclude</excludeFile>
-                        <!--svn|mercurial|git - defaults to svn-->
                         <scm>git</scm>
-                        <!-- turn on/off debugging -->
                         <debug>false</debug>
-                        <!-- skip files not under SCM-->
                         <scmOnly>true</scmOnly>
-                        <!-- turn off warnings -->
                         <warn>false</warn>
                         <!-- for use with repair -->
                         <update>false</update>