These libraries are under the following licenses:
Eclipse Compiler for Java.
Eclipse Jetty provides a Web server and javax.servlet container, plus support for HTTP/2, WebSocket, OSGi, JMX, JNDI, JAAS and many other integrations.
Eclipse XSD (XML Schema Definition) is a library that provides an API for manipulating the components of an XML Schema as described by the W3C XML Schema specifications, as well as an API for manipulating the DOM-accessible representation of XML.
Eclipse Modeling Framework.
Graphviz is open source graph visualization software.
H2 is a relational database management system written in Java. It can be embedded in Java applications or run in the client-server mode.
JUnit 5 is the next generation of JUnit. The goal is to create an up-to-date foundation for developer-side testing on the JVM. This includes focusing on Java 8 and above, as well as enabling many different styles of testing.
Logback is intended as a successor to the popular log4j project, picking up where log4j leaves off. (classic and core modules)
Restlet Framework helps Java developers build better web APIs that follow the REST architecture style.