Out of Memory Exception

[pinkduck]

JOSM 6060 is crashing for me after around 17–20 edit sessions using Bing and OS StreetView background tiles. I have uploaded a zip file of an .hprof file created by "-XX:+HeapDumpOnOutOfMemoryError” option in the hope that the cause can be identified and resolved so that I don’t need to manually stop and restart the editor too often. I run JOSM with command line " -Xmx512M”.

​http://sdrv.ms/1e69JJq

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2013-07-10 01:34:22
Last Changed Author: stoecker
Revision: 6060
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2013-07-08 22:13:24 +0200 (Mon, 08 Jul 2013)
Last Changed Rev: 6060

Identification: JOSM/1.5 (6060 en_GB) Windows 7 64-Bit
Memory Usage: 163 MB / 455 MB (111 MB allocated, but free)
Java version: 1.7.0_25, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
VM arguments: [-Xmx512M, -XX:+HeapDumpOnOutOfMemoryError, -XX:HeapDumpPath=C:\Users\Pink Duck\Downloads\JOSM.hprof]

Plugin: reverter (29663)
Plugin: undelete (29555)

[rickmastfan67]

Might want to bump up the memory you give JOSM. That "-Xmx512M" is very low and odds are, causing your problem.

Try boosting that to "-Xmx1024M" if you have enough ram on your computer and see what happens. ;)

[pinkduck]

That’s a workaround, but the actual problem is that memory after use is not being properly released. There's a bug somewhere there to fix, which could be analysed by looking at whatever the significant number of similar type objects are in the .hprof profile.

[Don-vip]

Can you please post your status info ? Knowing the list of plugins installed on your machine is important in memory leaks hunting.

[pinkduck]

JOSM Status Report

[Don-vip]

In 6107/josm:

fix #8919 - fix memory leaks, including one introduced with r5982

[bastiK]

Nice, what tools did you use to find the leaks?

[Don-vip]

Jvisualvm:

• load hprof
• compute 20 largest objects by retained size
• open first instance and look for references
• right click: get nearest GC root