4.0.0 pom org.geomajas.plugin geomajas-client-gwt2-plugin-parent 2.1.1 geomajas-client-gwt2-plugin-tilebasedlayer-parent Geomajas GWT2 client: Plugin Tile Based Layer - Parent Geomajas GWT2 client: Plugin Tile Based Layer - Parent impl example-jar documentation javadoc