4.0.0 com.vaadin flow-component-base 1.0.0.alpha15 vaadin-notification-flow 1.0.0.alpha9 1.0.0.alpha23 vaadin-prereleases https://maven.vaadin.com/vaadin-prereleases vaadin-snapshots https://oss.sonatype.org/content/repositories/vaadin-snapshots/ javax.servlet javax.servlet-api 3.1.0 provided org.webjars.bowergithub.vaadin vaadin-notification 1.0.0-beta1 com.vaadin flow-data ${flow.version} org.slf4j slf4j-simple 1.7.25 test com.vaadin flow-component-demo-helpers ${flow.version} test org.eclipse.jetty jetty-maven-plugin ${project.basedir}/src/test/webapp