[Patch] History query will not cancel or timeout

[AM909]

In r5181.

On about 1 out of 10 or 20 attempts to get the history of an object (Show button in History window), the progress dialog just sits there saying "Connecting...". It either times out never or perhaps after a very long (too long) time - I've waited minutes I'm sure.

Clicking the Cancel button has no effect either.

The only way to get JOSM usable again is to close the actual connection that is hanging (e.g. with tcpview).

The main API query also either does not time out, or waits far too long. About 1 in 20 queries there just hang, too. You know that, if it does not start receiving data after about 20 seconds, it's not going to do so ever. I believe the cancel does work here, though. It's just that it should abort and retry on its own because the download dialog does not "remember" the area you specified if you abort such a download, so you have to find/select the area again.

There may be other queries that block similarly.

BTW, does anyone know why these queries hang?

[simon04]

#5084 is related.

[simon04]

Attached patch should fix the problem. However, there are several (>10) more url.openConnection() in the code which may suffer from the same problem …

[simon04]

In 5324/josm:

fix #7640 - History query will not cancel or timeout