There has been a lot of discussion about exporting packages - at compile time vs runtime and also the related problem of resources. I decided to take a look at some open source projects to see whether a list of exported packages is useful as currently defined:
These standard open source projects were designed prior to modules: Joda-Time - 7 exported packages Joda-Time-Hibernate - 1 exported package Joda-Time-I18N - 1 exported package Joda-Time-JspTags - 1 exported package Joda-Money - 2 exported packages Joda-Primitives - 10 exported packages Joda-Convert - 2 exported packages Joda-Collect - 1 exported package Joda-Beans - 16 exported packages Joda-Beans-Maven-Plugin - 1 exported package Joda-Beans-UI - 5 exported packages ThreeTen-Extra - 3 exported packages ThreeTen-Backport - 6 exported packages Google Guava - 18 exported packages, 1 non-exported package SLF4J - 3 exported packages JCommander - 4 exported packages, 1 non-exported package Looking at the list, it is clear that non-exported packages are a small use-case. - 81 exported packages - 2 non-exported packages Strata [1] has been designed in Java 8 but with an awareness that modules are coming: Strata-Collect - 8 exported packages Strata-Basics - 7 exported packages Strata-Data - 2 exported packages Strata-Calc - 3 exported packages Strata-Product - 23 exported packages Strata-Market - 13 exported packages Strata-Loader - 3 exported packages, 1 only exported at runtime for reflection Strata-Math - 1 exported package, 17 packages exported only to a single friend module Strata-Pricer - 19 exported packages, 10 non-exported packages Strata-Measure - 15 exported packages - 94 exported packages - 17 exported to a single other module - 11 non-exported packages I'll use a different thread to express my opinion on what the data means. Please use this thread to add summaries of other open source projects. Stephen [1] https://github.com/OpenGamma/Strata
