id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
15306	Just errored while browsing around with a few imagery layers open	bgirardot	team	"==== 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)
}}}
"	defect	closed	normal		Core		duplicate	template_report jcs cache	wiktorn