pressing stop button crashes plugin (development version)

[Polyglot]

What steps will reproduce the problem?

1. Load pictures
2. Select 1
3. Start walk mode, 2s
4. Play, pause, stop don't appear on windowed photo viewer
5. Dock the window by pressing X
6. Undock the window again.
7. Nothing seems to happen
8. Press stop button
9. crash

What is the expected result?

What happens instead?

Please provide any additional information below. Attach a screenshot if possible.

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2015-08-03 01:32:29
Last Changed Author: Don-vip
Revision: 8637
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Relative URL: ^/trunk
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2015-08-02 23:08:56 +0200 (Sun, 02 Aug 2015)
Last Changed Rev: 8637

Identification: JOSM/1.5 (8637 en) Windows 7 64-Bit
Memory Usage: 526 MB / 1111 MB (109 MB allocated, but free)
Java version: 1.7.0_40, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Dataset consistency test: No problems found

Plugins:
- AddrInterpolation (31241)
- ImportImagePlugin (31241)
- Mapillary (31395)
- OpeningHoursEditor (31241)
- PicLayer (31241)
- RoadSigns (31241)
- TombPlugin (44)
- alignways (31241)
- buildings_tools (31361)
- commons-imaging (31241)
- contourmerge (1013)
- dataimport (31241)
- easy-routes (UNKNOWN)
- fieldpapers (v0.3.0)
- geochat (31241)
- geotools (31126)
- importvec (31241)
- jna (31126)
- jts (31126)
- livegps (31241)
- log4j (31231)
- mapdust (31241)
- measurement (31289)
- mirrored_download (31294)
- opendata (31241)
- pdfimport (31241)
- photo_geotagging (31241)
- photoadjust (31413)
- public_transport (31241)
- reverter (31241)
- scripting (30710)
- tag2link (31241)
- terracer (31241)
- todo (29154)
- turnrestrictions (31241)
- undelete (31241)
- utilsplugin2 (31241)
- walkingpapers (31241)
- wikipedia (31241)

Last errors/warnings:
- W: Could not get presets icon presets/crossing.png
- E: Failed to locate image 'presets/crossing.png'
- W: Could not get presets icon presets/crossing.png
- E: Unable to load module icon: images/be24.png
- E: java.lang.IllegalMonitorStateException

java.lang.IllegalMonitorStateException
	at java.util.concurrent.locks.ReentrantLock$Sync.tryRelease(Unknown Source)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.release(Unknown Source)
	at java.util.concurrent.locks.ReentrantLock.unlock(Unknown Source)
	at org.openstreetmap.josm.plugins.mapillary.actions.WalkThread.run(WalkThread.java:117)

[Polyglot]

[INFO] CacheEventQueue - Cache event queue created: CacheEventQueue [listenerId=
-169696211, cacheName=mapillary]
{Etag="fe9883b563b1b7736b849c58b6d4b665", lastModification=1438644422978, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="76b64bfa19a0f67ba10ce4e0fa04ba09", lastModification=1438644426857, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="2c9191552faf8d1a74ff36b534a2dc53", lastModification=1438644427047, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="edf034bd0a05beb9872ed6597df6f941", lastModification=1438644427233, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="78891fd0dc12394b3a01e1f297d19102", lastModification=1438644427420, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
INFO: GET ?client_id=T1Fzd20xZjdtR0s1VDk5OFNIOXpYdzoxNDYyOGRkYzUyYTFiMzgz&min_lo
n=4.710885&max_lat=50.900098&min_lat=50.889360&max_lon=4.732497 (Mapillary plugi
n)
{Etag="5daae152dcd76cea3479577b2fdf60c2", lastModification=1438644429624, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="01d2622c79090026e25d79ce681b2e1d", lastModification=1438644429945, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="57362649d377f83f8ef98bf92d991433", lastModification=1438644430113, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="46b072d66e0c896701d30327dfa8ccf9", lastModification=1438644431459, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="2de692e4763963132efe1b7161685769", lastModification=1438644433138, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="a9b7e1b206f981bdddf51ce3bebc5364", lastModification=1438644433402, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="a9b7e1b206f981bdddf51ce3bebc5364", lastModification=1438644433402, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="dcf79fcd526bedd37d9a657d7feb39e6", lastModification=1438644433770, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="dcfc4fb4227a45b5ebf5987a6dab77bf", lastModification=1438644433758, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="e7ef9421562dd41561e1630b2bfaf92c", lastModification=1438644433758, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="bed1cdde59870e30b6f526a9dfb9b804", lastModification=1438644438705, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="a4131fc5379e11f4d0ea5da56400cb3a", lastModification=1438644438705, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="57362649d377f83f8ef98bf92d991433", lastModification=1438644430113, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="b7a38ba8ed63fdbd9d873ac19ee673bf", lastModification=1438644440115, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="7c7aea7431d99ac73153b7518741c1dd", lastModification=1438644439593, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="01d2622c79090026e25d79ce681b2e1d", lastModification=1438644429945, expira
tionTime=0, noTileAtZoom=false, httpResponceCode=200}
{Etag="c374fbdb2ed1b730961cd848c38ce820", lastModification=1438644440322, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="d3fd1bec6853adccf85782c8c1ce9dcd", lastModification=1438644440984, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
[INFO] CacheEventQueue - Cache event queue created: CacheEventQueue [listenerId=
-169696211, cacheName=mapillary]
{Etag="173875c583a8d8b6b195c4258c335eb6", lastModification=1438644453807, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="0343d5a3349371f1a4e2cdbbc01a7222", lastModification=1438644456043, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="b64a6be6fc34d454d868c167d5312614", lastModification=1438644453807, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="74f3aaaeea3f0ec2bb706794557dac93", lastModification=1438644462383, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
ERROR: java.lang.IllegalMonitorStateException
java.lang.IllegalMonitorStateException

at java.util.concurrent.locks.ReentrantLock$Sync.tryRelease(Unknown Sour

ce)

at java.util.concurrent.locks.AbstractQueuedSynchronizer.release(Unknown

Source)

at java.util.concurrent.locks.ReentrantLock.unlock(Unknown Source)
at org.openstreetmap.josm.plugins.mapillary.actions.WalkThread.run(WalkT

hread.java:117)
INFO: Opening URL: https://josm.openstreetmap.de/josmticket?gdata=H4sIAAAAAAAAAK
VVy3LbNhRdl19xF52JNDUpPvTkzo7diRLLTiWr3tUDEdcUJBDgAKBc9et7Qdkx7WYmnVYbEQf3eXAusM
RaW-G0OcJSa5fD1rk6Hwx22laRrlFZZxBdxeqI48AeVHDRCMnDS-YwhzRORmE8DeMM4iTP0jydBdfMOv
i4ZapEDueN22qTw6VW4UHUwRIPwgqtcpiOswktv2Vfr-eXOcTFGCejYRoW4zgJ42ESh9MhTsIizqYM-X
S6yTbkJZkTB4T18jqHPwbONGoftIsfVf9s-6bGd62kkGZ5PM1HY_glTuMYeqtGnQHh503ZmvXf-lNPz-
0Ec47KiUdRUH2-yc-3q8UgiUbQ8_uAqg_3QnH9ZGEC42F4IVywwKrt37KSyhilY1hcwAAS-vmvXhLP_D
-TUlNY5GewaRw8Ul_94DM7MDigOVGaRJMofhjGZ3BrWCERPmpTa9PWcgat7SftVrV2vbtF_zk_rNBQBP
h9ERARzKKDQisrrENVHMGhJVHcaKiN3kisLDzqRvEg-CqbUiibByGcc27myiElk20y6GVJOkz6tDevqA
I3r6i5k0dnb8FqISWj5gnLZiOP3dKhCVV-0o2xV9xLo-PwVRTX7IhdaKkZX4lS2Q52p6vNS7Lh0CNMks
kTO3atNl7HlMo-OK1lu5ON251CVxVREAqqmgw6PsSMo8oqNCX6k0kyj3LiTbR9dkyR2WNodEMEQm998-
Xm9v7G448CJa9ZTYcGvUMcZVHs4RJ1sWXdAIR8KyxJxx46JTlg0THbKdax2LmuvaQhKetu01KXw127zt
o1TQZvbDdtRYU3BisScotOZy0qjNEG-QNpV0nivN2bteT6OfMUdILU_PEfhNRb6ufBd8XKd7S2W4zvni
sZnmitm40UxYMzTNl3sQySZN0bIdjCiNqd4saTpCWVMqVSqH3HjJxoNt54Os019NJZMmrbcY1RhlRvRO
G13GWPhI8SHXYhJ6StW7GlHfiJyT3V8nLOr7jYixq5eCXrdJegp9cOnpjx6m-n6j6n-W0kB6UdicHRBC
JNpwVBKnxZDAqjrSWXqFYlOV3l8CsTkm4lp-F0YYCXMcKH73l8-B951orRhXDKQ3qoNG9o6Z3yU0o72G
A6fHXY0QUUSbozo7mUWDK50MoP-MpRlVd_Flh7voPgX9r9RNPSmvojiCht0RhDqo2o7b2NlkjfJB13Tc
ufV0dVRM4c6ekgfWNvrfaKlAwrmuaCLtIfBDvfkB5Y4X5rsEHug20NFfUXmsj8t4hvyosa5dHvxtCmfP
eStY_bSXI2ql7u0Iid5Brdk_TutgYZj-it63WWvpw8SSb94G_CSYjg9gcAAA==
{Etag="b64a6be6fc34d454d868c167d5312614", lastModification=1438644453807, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="74f3aaaeea3f0ec2bb706794557dac93", lastModification=1438644462383, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="b64a6be6fc34d454d868c167d5312614", lastModification=1438644453807, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}
{Etag="74f3aaaeea3f0ec2bb706794557dac93", lastModification=1438644462383, expira
tionTime=0, httpResponceCode=200, noTileAtZoom=false}

[nokutu]

I think it works now. Sometimes the window doesn't refresh, just move the button over a Mapillary icon on the map to refresh it.