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Re: [jts-dev] Simple cast problem
OSGi is the multi class loader set up I described, is it possibly another component also used JTS?

These are hard problems!
--
Jody Garnett


On Mon, Feb 12, 2024 at 10:47 PM Simon SPDBA Greener via jts-dev <jts-dev@xxxxxxxxxxx> wrote:

Within the same Eclipse project I created a test class that uses the same dependencies as used in the compilation.

Trivial I know...

private static void Geometry2Polygon( )
{
        Geometry jtsGeom = null;
        jtsGeom = JTSGeometry.fromWKT("POLYGON((0 0,10 0,10 10, 0 10, 0 0))");
        Polygon poly = (Polygon) jtsGeom;
        PrintGeometry.printJTSGeometry(poly);
}


And it works, ie it gets to my PrintGeometry method.

But the same few lines in the actual main code, when deployed to SQL Developer, fails at that (Polygon) cast in that method.

I have one other instance of this cast in thousands of lines of code ... and it works....

All my other JTS dependent code in my extension work fine just not this case.

Hmmmm... I'll keep digging.

regards

On 13/02/2024 2:04 pm, SPDBA via jts-dev wrote:
I'll prepare something.
Thanks
Simon

39 Cliff View Drive, Allens Rivulet, 7150, Tasmania, Australia
(P) 03 62 396 397
(M) 0418 396 381
On 13 Feb 2024, at 13:23, Martin Davis via jts-dev <jts-dev@xxxxxxxxxxx> wrote:
If you can post reproducing code we can have a closer look.

On Mon, Feb 12, 2024 at 6:07 PM SPDBA via jts-dev <jts-dev@xxxxxxxxxxx> wrote:
I've tried running with jts-core-19.0.jar
Still fails.
Simon

39 Cliff View Drive, Allens Rivulet, 7150, Tasmania, Australia
(P) 03 62 396 397
(M) 0418 396 381
On 13 Feb 2024, at 09:57, SPDBA via jts-dev <jts-dev@xxxxxxxxxxx> wrote:
I have print statements either side.
After print never executes.
Code used to work (an unhelpful thing to say) but the java versions etc (see other email) are basically the same as before.
What gets me is that no exception is thrown: the calling java class just terminates. The application doesn't terminate, just the action.
Simon


39 Cliff View Drive, Allens Rivulet, 7150, Tasmania, Australia
(P) 03 62 396 397
(M) 0418 396 381
On 13 Feb 2024, at 08:54, Martin Davis via jts-dev <jts-dev@xxxxxxxxxxx> wrote:
Is it possible the code just terminates normally?

You could try adding print statements to see exactly where the code terminates.

On Mon, Feb 12, 2024 at 2:33 AM SPDBA via jts-dev <jts-dev@xxxxxxxxxxx> wrote:
In my Java code I create a Geometry object that could be of any type.

I test that the Geometry us if type Polygon then do a cast. My code terminates with no exception thrown....

Geometry g = ......;
if ( g instanceof Polygon) {
   Polygon p = (Polygon) g;
   //Process polygon
}

Any help trying to work out what is going on appreciated.

Simon

39 Cliff View Drive, Allens Rivulet, 7150, Tasmania, Australia
(P) 03 62 396 397
(M) 0418 396 381
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-- 
Simon Greener
39 Cliff View Drive, Allens Rivulet, 7150, Tasmania, Australia
(m) +61 418 396 391
(w) www.spdba.com.au
(m) simon@xxxxxxxxxxxx
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