Binary package “tomcat9-common” in ubuntu eoan

Apache Tomcat 9 - Servlet and JSP engine -- common files

 Apache Tomcat implements the Java Servlet and the JavaServer Pages (JSP)
 specifications from Oracle, and provides a "pure Java" HTTP web
 server environment for Java code to run.
 This package contains common files needed by the tomcat9 and tomcat9-user
 packages (Tomcat 9 scripts and libraries).