On 17 Apr 2016, at 5:13pm, Cecil Westerhof <cldwesterhof at gmail.com> wrote:

> Or is this normal
> in Java programs?

Yes.  You're discovering that Java is rubbish.  'futex' for Java is what most 
environments call 'mutex' and Java doesn't do locking well.  It's this which is 
causing your delays, not SQLite or anything around it.

Google 'java futex' if you want details, but there's little point since you 
can't do much about it.  Just stay updated to the latest OS and the latest Java 
available to you and hope someone figured it out.

Simon.

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