java.lang.InternalError - No RenderingEngine module found

[Omair Majid]

On 03/14/2012 12:19 PM, Jiri Vanek wrote:
> On 03/14/2012 05:11 PM, Omair Majid wrote:
>> On 03/14/2012 11:36 AM, Jiri Vanek wrote:
>>>   It happend when trying to create  jframe from test, run inside junit,
>>> run from make from commandline.
>>
>> Can you post the code that is causing the error and tell us exactly how
>> you are running it?
>>

Sorry about the delay in getting back.

> 
>     @Test
>     public void frame() throws AWTException, IOException{
>         JFrame f = new JFrame();
>         f.setSize(800,600);
>         f.setVisible(true);
>         Assert.assertNotNull(f);
>         Robot r =new Robot();
>         BufferedImage bi=r.createScreenCapture(new Rectangle(0,0,800,600));
>         Assert.assertNotNull(bi);
>         ImageIO.write(bi, "png", new
> File("/home/jvanek/Desktop/xp13.png"));
> 
>     }
> 
> 
> in any testclass from jnlp testcases or unittests.
> 
> Then  ./autogen.sh ; ./configure 
> --prefix=/home/jvanek/icedtea-web-image --disable-docs; make check; make
> install;make run-netx-dist-tests. In all cases the frame test failed on
> first line with mentioned exception.

Thanks for the reproducer and the steps.

Ok, I see the problem now. Implementations of RenderingEngine are stored
in rt.jar, but java uses the ServiceLoader mechanism to locate and use
an implementation of RenderingEngine. In this case, ServiceLoader looks
for META-INF/services/sun.java2d.pipe.RenderingEngine files in any jars
on the classpath to find the implementations of RenderingEngine. This
file, in icedtea (and openjdk), is stored in resources.jar which we do
not add to the classpath when building.

The attached patch works for me. It runs the test (which fails).

That said, I am a little confused. Are you trying to use junit to run
entire applications and take screenshots and do comparisons? I am not
sure if junit is the best tool for this. Perhaps a simple java program
will suffice (unless you need the various
annoations/methods/integration-support provided by junit).

Cheers,
Omair
-------------- next part --------------
A non-text attachment was scrubbed...
Name: rendering-engine-01.patch
Type: text/x-patch
Size: 1250 bytes
Desc: not available
Url : http://mail.openjdk.java.net/pipermail/distro-pkg-dev/attachments/20120316/b19261cb/rendering-engine-01.patch