sonarqube/archetypes/sonar-gwt-plugin/src/main/resources/archetype-resources/src/main/java/page/client/I18nConstants.java

#set( $symbol_pound = '#' )
#set( $symbol_dollar = '$' )
#set( $symbol_escape = '\' )
package ${package}.page.client;

import com.google.gwt.core.client.GWT;

public interface I18nConstants extends com.google.gwt.i18n.client.Constants {

  static I18nConstants INSTANCE = GWT.create(I18nConstants.class);

  @DefaultStringValue("This is a sample")
  String sample();
}