Just errored while browsing around with a few imagery layers open

[bgirardot]

What steps will reproduce the problem?

No idea, browsing around, adding and removing imagery layers looking at this city.

URL is center point screen when error happened.
​https://www.openstreetmap.org/#map=19/16.703095105257344/-92.61675038548408

see attached image for list of layers and their state.

What is the expected result?

What happens instead?

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

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2016-06-04 17:28:58 +0200 (Sat, 04 Jun 2016)
Build-Date:2016-06-04 15:31:27
Revision:10327
Relative:URL: ^/trunk

Identification: JOSM/1.5 (10327 en) Windows 7 64-Bit
Memory Usage: 552 MB / 910 MB (249 MB allocated, but free)
Java version: 1.8.0_111-b14, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Dataset consistency test: No problems found

Plugins:
- FastDraw (32309)
- PicLayer (32329)
- apache-commons (32584)
- buildings_tools (32309)
- ejml (32639)
- geotools (32584)
- josm-geojson (31245)
- jts (32539)
- measurement (32158)
- opendata (32158)
- turnrestrictions (32158)
- utilsplugin2 (32158)

Map paint styles:
- https://github.com/hotosm/HDM-JOSM-style/archive/master.zip

Last errors/warnings:
- E: java.lang.IllegalArgumentException: Negative position

java.lang.IllegalArgumentException: Negative position
	at sun.nio.ch.FileChannelImpl.write(Unknown Source)
	at org.apache.commons.jcs.auxiliary.disk.block.BlockDisk.write(BlockDisk.java:216)
	at org.apache.commons.jcs.auxiliary.disk.block.BlockDiskCache.processUpdate(BlockDiskCache.java:399)
	at org.apache.commons.jcs.auxiliary.AbstractAuxiliaryCacheEventLogging.updateWithEventLogging(AbstractAuxiliaryCacheEventLogging.java:65)
	at org.apache.commons.jcs.auxiliary.disk.AbstractDiskCache.doUpdate(AbstractDiskCache.java:815)
	at org.apache.commons.jcs.auxiliary.disk.AbstractDiskCache$MyCacheListener.handlePut(AbstractDiskCache.java:673)
	at org.apache.commons.jcs.engine.AbstractCacheEventQueue$PutEvent.doRun(AbstractCacheEventQueue.java:350)
	at org.apache.commons.jcs.engine.AbstractCacheEventQueue$AbstractCacheEvent.run(AbstractCacheEventQueue.java:269)
	at org.apache.commons.jcs.engine.CacheEventQueue$QProcessor.run(CacheEventQueue.java:304)

[bgirardot]

screenshot of layers open when errored.

[wiktorn]

It's probably some bug (race condition) within JCS.

@Don-vip:
What do you think about tracking tags/commons-jcs-2.1 or tags/commons-jcs-2.2 instead of trunk for JCS?

[Don-vip]

Replying to wiktorn:

What do you think about tracking tags/commons-jcs-2.1 or tags/commons-jcs-2.2 instead of trunk for JCS?

Yeah sure, good idea :)

[wiktorn]

Closed as duplicate of #12909.
Please, update to new version of JOSM

[wiktorn]

Replying to Don-vip:

Replying to wiktorn:

What do you think about tracking tags/commons-jcs-2.1 or tags/commons-jcs-2.2 instead of trunk for JCS?

Yeah sure, good idea :)

Maybe just not yet? Apart from few bug some time ago (when there was no tag that we were interested in), this hadn't bite us yet. And tracking trunk we don't need to update externals.

[Don-vip]

Ah sorry I didn't notice the JOSM version was completely outdated here.
@bgirardot: please don't report issues against a 1 year old version of JOSM without updating first. We release a new version every month!