The user was able to resolve the issue by disabling the closure cleaner.
Apparently, the closure cleaner is stumbling across the static variable.
@Aljoscha: I think you've added the ClosureCleaner, what do you think about
this?
On Tue, Jan 5, 2016 at 4:09 PM, Matthias J. Sax <
[hidden email]> wrote: