Latest version of servletapi:servletapi
https://javadoc.io/doc/servletapi/servletapi
Current version 2.4
https://javadoc.io/doc/servletapi/servletapi/2.4
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/servletapi/servletapi/2.4/package-list