jHipster - JHipster is a development platform to quickly generate, develop, & deploy modern web applications & microservice architectures.
Redmine - Flexible project management web application
Vaadin Framework - Vaadin is a web application framework for Rich Internet Applications (RIA).
Basecamp - A simple and elegant project management system.
CUBA.platform - A Full Stack Enterprise Java Framework with lots of out of the box functionality and amazing...
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.