Fix endless loop in GPSPropagator.java

[JosefProbst]

If x.getValue() or/and x0.getValue() is Double.NaN this is a endless loop.

[wardev]

Thanks for the patch! Could you add a unit test?

[BryanCazabonne]

Hi all,

Many thanks for finding and correcting the issue.
The GitHub repository is only a mirror repository for Orekit. In that respect, it is not really adapted for pull request.
Can you create an account on the Orekit GitLab repository ( https://gitlab.orekit.org/orekit/orekit ) ?
Then, create an issue on: https://gitlab.orekit.org/orekit/orekit/issues
Finally, send a merge request on the GitLab repository

Many thanks
Bryan

[BryanCazabonne]

Hi JosefProbst,

Your patch does not compile in my computer. I have an error when I call the method .equals() with a "double" parameter : " Cannot invoke equals(double) on the primitive type double "

I moved the issue on the Orekit GitLab repository. We remarked that this endless loop can also occur on KeplerianOrbit.java and FieldKeplerianOrbit.java classes.

Thanks again for finding the issue.
Bryan

[BryanCazabonne]

The issue has been fixed in develop branch (https://gitlab.orekit.org/orekit/orekit/issues/544).

Thanks again for your contribution on the bug reporting. I notified your contribution in the change.xml file of Orekit.

Best regards,
Bryan