CGContextGetCTM: invalid context 0x0 errors on OSX

Question

It would appear that the latest version of Java (as supplied by Apple Update) and/or the latest version of OSX do not get along as well as they should. If you search for one of the error messages below you will see a lot of people are getting these error messages (usually in some console output window or script) but I'm not sure if Oracle / Apple are aware of the problem and indeed if it's Java or OSX update related. Apparently the latest Java 7 from Oracle does not correct the error.
<Error>: CGContextGetCTM: invalid context 0x0
<Error>: CGContextSetBaseCTM: invalid context 0x0
<Error>: CGContextGetCTM: invalid context 0x0
<Error>: CGContextSetBaseCTM: invalid context 0x0
As far as I can tell it's not actually preventing anything from working. I get the output below in my Eclipse IDE console output window along with all my other logger output.
Where would I need to look to see if there is a proper bug report registered and if there is a patch/update pending.
Took me ages just to get an account working on this website - the Oracle user logon process seems very unreliable and unpredictable.

Answer 1

Maybe I can narrow down the search for causes.
My Java application produces the exact same error message only when I execute those lines:
final java.net.URL url = ProjectVanNimwegenBacteria.class.getResource("gui/media/IconMotherMachine64.png");
final Toolkit kit = Toolkit.getDefaultToolkit();
final Image img = kit.createImage(url);
guiFrame.setIconImage(img);
If I take them out they vanish.
Hope that helps,
Florian