Re: Getting 500 error from RPC call

What is the exception logged on the server that caused the HTTP 500 error?

Generally your classes and their field references must implement Serializable, have a default constructor (can be private) and should not have final fields. Is that the case for RectangularWithDiagonalsPuzzle and its super classes?

-- J.

Neil Aggarwal schrieb am Mittwoch, 18. Dezember 2024 um 00:44:06 UTC+1:

Now, when I call my service, I am getting this error:
500 500 The call failed on the server; see server log for details

Here is the code in my service:
public Puzzle getPuzzle(String category) {
try {
Puzzle puzzle =
(Puzzle)FileUtil.deSerialize(PathUtil.PUZZLES_DIR+"/DiagonalSlitherlink/Ch
allenging/DiagonalSlitherlink-00001-3.ser");
LogManager.getLogger(getClass()).warn("Loaded puzzle "+puzzle);
return puzzle;
} catch( Exception e ) {
LogManager.getLogger(getClass()).error(e);
return null;
}
}

My server log has this:
WARN: Loaded puzzle
com._3dmathpuzzles.slitherlink.RectangularWithDiagonalsPuzzle@3f8ef4a0

The only code after that line is the return.

Does GWT not like that I am returning a subclass which is referenced by a
superclass reference?

Thank you,
Neil

--
Neil Aggarwal, (972) 834-1565, http://www.propfinancing.com
We offer 30 year loans on single family houses!

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