I have the issue too from time to time. I don't know where it comes from.

If it comes form missing sources, it may be because some blocks have no sources even when the sources are presents (we tracked them down with Marcus but we don't know from where they come from).

A solution is to use the OpalDecompiler instead of "self methodWithoutSources".

2014-09-15 20:47 GMT+02:00 Damien Cassou <damien.cassou@gmail.com>:

On Mon, Sep 15, 2014 at 8:01 PM, Esteban A. Maringolo
<emaringolo@gmail.com> wrote:
> Why is this? Is it a know bug?

is it possible that you don't have the source code of your image? Both
the .changes and .sources must be available

--
Damien Cassou
http://damiencassou.seasidehosting.st

"Success is the ability to go from one failure to another without
losing enthusiasm."
Winston Churchill