Module method close() not invoked on uninstall or stop.

There is a method in the Java code generated from Yang:

public abstract java.lang.AutoCloseable createInstance();

I implement createInstance() to return an instance of AutoClose with a close() method that closes all my socket connections. There is also a log statement in the close() method. Naturally I want to check that the close() method executes. I want to see the log output.

If I shutdown Equinox then close() is invoked but not if I uninstall or stop the bundle. Note that a shutdown after uninstall or stop does invoke close().