Bug: aQute.bnd.osgi.Processor$Bracket needs to be _static_ to avoid a deadly embrace with aQute.bnd.osgi.Processor.bracket
This class is an inner class, but should probably be a static inner class. As it is, there is a serious danger of a deadly embrace between the inner class and the thread local in the outer class. Because the inner class isn't static, it retains a reference to the outer class. If the thread local contains a reference to an instance of the inner class, the inner and outer instance will both be reachable and not eligible for garbage collection.

Signed-off-by: Christoph Rueger <chrisrueger@gmail.com>