id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
20630	Memory retained after deleting imagery layer	Famlam	team	"==== What steps will reproduce the problem?
1. Open JOSM on any area with some imagery available (memory usage via task manager ~500MB)
2. Load as many imagery layers as are available (memory usage ~1200MB)
3. Delete all layers from step 2 (memory usage ~1200MB)

==== What is the expected result?
Memory back to 500MB

==== What happens instead?
Memory remains at 1200MB

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



{{{
URL:https://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2021-03-17 18:58:40 +0100 (Wed, 17 Mar 2021)
Build-Date:2021-03-17 17:59:56
Revision:17580
Relative:URL: ^/trunk

Identification: JOSM/1.5 (17580 nl) Windows 10 64-Bit
OS Build number: Windows 10 Home 2009 (19042)
Memory Usage: 973 MB / 1820 MB (314 MB allocated, but free)
Java version: 1.8.0_281-b09, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Look and Feel: com.sun.java.swing.plaf.windows.WindowsLookAndFeel
Screen: \Display0 1920×1080 (scaling 1,00×1,00)
Maximum Screen Size: 1920×1080
Best cursor sizes: 16×16→32×32, 32×32→32×32
Dataset consistency test: No problems found

Plugins:
+ OpeningHoursEditor (35640)
+ SimplifyArea (35640)
+ imagery_offset_db (35640)
+ pt_assistant (2.1.10-80-g7d9bba3)
+ reverter (35688)
+ tageditor (35640)
+ turnlanes-tagging (288)
+ undelete (35640)
+ utilsplugin2 (35691)

Map paint styles:
- https://josm.openstreetmap.de/josmfile?page=Styles/Lane_and_Road_Attributes&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/PublicTransport&zip=1
+ %UserProfile%\Documents\tijdelijke bestanden\josm-eigen.mappaint.mapcss
- https://josm.openstreetmap.de/josmfile?page=Styles/Sidewalks&zip=1

Validator rules:
+ %UserProfile%\Documents\tijdelijke bestanden\josm-eigen.validator.mapcss

Last errors/warnings:
- 00009,029 E: org.openstreetmap.josm.gui.mappaint.mapcss.MapCSSException: java.util.regex.PatternSyntaxException: Unmatched closing ')' near index 74
- 00009,029 E: Skipping to the next rule, because of an error:
- 00009,029 E: org.openstreetmap.josm.gui.mappaint.mapcss.MapCSSException: Error at line 1473, column 102: java.util.regex.PatternSyntaxException: Unmatched closing ')' near index 74
- 00045,364 W: Kan geen ondersteunde projectie vinden voor laag PDOK Luchtfoto actueel IR. Gebruik EPSG:3857.
- 00045,364 W: Kan geen ondersteunde projectie vinden voor laag PDOK Luchtfoto actueel IR. Gebruik EPSG:3857.
}}}
"	defect	closed	normal		Core imagery		othersoftware	template_report memory imagery	wiktorn