id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
14768	"freezes with ""Postprocessing uploaded data"""	Polarbear-j	team	"Happened twice today. first case was harmless since all <100 objects were uploaded already.
Second case was >100 objects (which is my chunk size). Seems to be JOSM- and not API-related since no http request remained open. 

Progress window stuck with message:
""Postprocessing uploaded data ... (1/2) Uploading 100 objects ...[cancel]""
pressing cancel does nothing. Application becomes unresponsive

The changeset shows 9 ways + 91 nodes uploaded (i.e. my first chunk of 100).

Had to press ctrl-c in the controlling terminal, which caused the shutdown. 
Remaining 66 uploads were in the recovery file, so it could be repaired with solving some conflicts.

Log extract:
{{{
version info:

Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2017-05-08 22:03:16 +0200 (Mon, 08 May 2017)
Build-Date:2017-05-09 01:33:49
Revision:12090
Relative:URL: ^/trunk

Identification: JOSM/1.5 (12090 en) Mac OS X 10.11.6
Java version: 1.8.0_131-b11, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
}}}
{{{
last log messages:

2017-05-10 19:55:04.220 INFO: Message notifier inactive
2017-05-10 19:55:04.220 INFO: PUT https://api.openstreetmap.org/api/0.6/changeset/create (520 B) ...
2017-05-10 19:55:05.016 INFO: PUT https://api.openstreetmap.org/api/0.6/changeset/create -> 200 (8 B)
2017-05-10 19:55:05.016 INFO: OK
2017-05-10 19:55:05.121 INFO: POST https://api.openstreetmap.org/api/0.6/changeset/48569527/upload (11.5 kB) ...
2017-05-10 19:55:07.656 INFO: POST https://api.openstreetmap.org/api/0.6/changeset/48569527/upload -> 200 (1.04 kB)
2017-05-10 19:55:07.656 INFO: OK

 (The changeset shows 9 ways and 91 nodes uploaded)
 (stuck here until ctrl-c)

^C[INFO] CompositeCacheManager - Shutdown hook activated.  Shutdown was not called.  Shutting down JCS.
(shutdown messages following)
}}}"	defect	closed	normal		Core	latest	duplicate