LGPL specific classes

Almost all the classes in the project are distributed under both the LGPL 2.1 and APACHE 2.0 licenses.

Some of the source files in the LGPL source distribution are only under the LGPL 2.1 license, which means that the source code can not be used under licenses which are not compatible with LGPL, including distributed proprietary code.

org.mdiutil.prefs package

The org.mdiutil.prefs package is only distributed under the LGPL 2.1 license. It uses source code from the JDK.

org.mdiutil.net package

The org.mdiutil.net package is only distributed under the LGPL 2.1 license. It uses source code from the JDK.

org.mdiutil.util.partialset package

The org.mdiutil.util.partialset package is only distributed under the LGPL 2.1 license. It uses source code from the JDK.