Author: erik[at]tiq.com
[Added to the original trac issue at 9.43pm, Wednesday, 28th December 2005]

I think it's impossibleto use the "create segment" tool when this happens.

Author: 80n80n[at]gmail.com
[Added to the original trac issue at 8.47pm, Friday, 30th December 2005]

I got a similar error. The applet just stops responding but is indistinguishable from a slow server so you can wait around for a long time before deciding that you need to reload the applet. Hence I've increased the priority a bit.

Trying to download image http://www.openstreetmap.org/tile/0.1/wms?map=/usr/lib/cgi-bin/steve/wms.map&service=WMS&WMTVER=1.0.0&REQUEST=map&STYLES=&TRANSPARENT=TRUE&LAYERS=landsat,gpx&bbox=-2.955322265625,51.034485632974125,-2.9443359375,51.037939894299356&width=256&height=128
getting nodes and lines
trying url: http://www.openstreetmap.org/api/0.2/map?bbox=-2.9868006706237797,51.0391213348809,-2.9567599296569824,51.0526117317383
adding image -269,10839
Trying to download image http://www.openstreetmap.org/tile/0.1/wms?map=/usr/lib/cgi-bin/steve/wms.map&service=WMS&WMTVER=1.0.0&REQUEST=map&STYLES=&TRANSPARENT=TRUE&LAYERS=landsat,gpx&bbox=-2.955322265625,51.034485632974125,-2.9443359375,51.037939894299356&width=256&height=128
adding image -269,10839
Trying to download image http://www.openstreetmap.org/tile/0.1/wms?map=/usr/lib/cgi-bin/steve/wms.map&service=WMS&WMTVER=1.0.0&REQUEST=map&STYLES=&TRANSPARENT=TRUE&LAYERS=landsat,gpx&bbox=-2.955322265625,51.037939894299356,-2.9443359375,51.04139389812637&width=256&height=128
adding image -269,10840
Trying to download image http://www.openstreetmap.org/tile/0.1/wms?map=/usr/lib/cgi-bin/steve/wms.map&service=WMS&WMTVER=1.0.0&REQUEST=map&STYLES=&TRANSPARENT=TRUE&LAYERS=landsat,gpx&bbox=-2.955322265625,51.04139389812637,-2.9443359375,51.04484764446179&width=256&height=128
adding image -269,10841
Trying to download image http://www.openstreetmap.org/tile/0.1/wms?map=/usr/lib/cgi-bin/steve/wms.map&service=WMS&WMTVER=1.0.0&REQUEST=map&STYLES=&TRANSPARENT=TRUE&LAYERS=landsat,gpx&bbox=-2.955322265625,51.04484764446179,-2.9443359375,51.04830113331224&width=256&height=128
mousePressed in ModeManager with currentMode=null and overButton=false
adding image -269,10842
Trying to download image http://www.openstreetmap.org/tile/0.1/wms?map=/usr/lib/cgi-bin/steve/wms.map&service=WMS&WMTVER=1.0.0&REQUEST=map&STYLES=&TRANSPARENT=TRUE&LAYERS=landsat,gpx&bbox=-2.955322265625,51.04830113331224,-2.9443359375,51.05175436468443&width=256&height=128
30-Dec-2005 19:48:24 org.apache.commons.httpclient.auth.AuthChallengeProcessor selectAuthScheme
INFO: basic authentication scheme selected
GPX parser started...
Start of Document
End of Document
adding image -269,10843
Trying to download image http://www.openstreetmap.org/tile/0.1/wms?map=/usr/lib/cgi-bin/steve/wms.map&service=WMS&WMTVER=1.0.0&REQUEST=map&STYLES=&TRANSPARENT=TRUE&LAYERS=landsat,gpx&bbox=-2.955322265625,51.05175436468443,-2.9443359375,51.055207338584964&width=256&height=128
adding image -269,10844
Exception in thread "Thread-420" java.lang.ArrayIndexOutOfBoundsException: 0 >= 0
at java.util.Vector.elementAt(Unknown Source)
at org.openstreetmap.client.Tile.getEle(Tile.java:361)
at org.openstreetmap.client.ImFetch.run(Tile.java:437)
getting nodes and lines
trying url: http://www.openstreetmap.org/api/0.2/map?bbox=-2.9874014854431157,51.03129510442612,-2.9573607444763184,51.04478778009968
30-Dec-2005 19:49:58 org.apache.commons.httpclient.auth.AuthChallengeProcessor selectAuthScheme
INFO: basic authentication scheme selected
GPX parser started...
Start of Document
End of Document

Author: immanuel.scholz[at]gmx.de
[Added to the original trac issue at 12.31pm, Tuesday, 28th February 2006]

Probably a synchronisation problem.

The fetch thread does not lock the vector, so could it be possible, that removeUnusedTiles is called by drag which will remove the last element in the vector exactly between the fetch thread checks for empty vector and the call to getEle with an empty imv-vector?

Imi.

Author: writetodan[at]yahoo.com
[Added to the original trac issue at 9.46am, Saturday, 17th February 2007]

Almost certainly due to unsafe thread access.

Am just testing some fixes now.

Author: writetodan[at]yahoo.com
[Added to the original trac issue at 8.52pm, Wednesday, 14th March 2007]

fix deployed to www