id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
23423	[Patch] Memory leak: Markerlayer doesn't remove MouseListener	GerdP	team	"==== What steps will reproduce the problem?
1. load a gpx file xyz.gpx containing waypoints
2. JOSM creates two layers, one called xyz.gpx, the other Markers from xyz.gpx
3. close both layers
4. create heap hump
==== What is the expected result?
No instance of class `org.openstreetmap.josm.gui.layer.markerlayer.Marker` or `org.openstreetmap.josm.gui.layer.markerlayer.MarkerLayer`, they should all be gced. 
==== What happens instead?
The instances are kept as long as the `MapView` instance exists.
==== Please provide any additional information below. Attach a screenshot if possible.

{{{
Build-Date:2024-01-19 16:41:08
Revision:18947
Is-Local-Build:true

Identification: JOSM/1.5 (18947 SVN en) Windows 10 64-Bit
OS Build number: Windows 10 Home 2009 (19045)
Memory Usage: 442 MB / 1678 MB (246 MB allocated, but free)
Java version: 1.8.0_272-b10, AdoptOpenJDK, OpenJDK 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
System property file.encoding: UTF-8
System property sun.jnu.encoding: Cp1252
Locale info: en_DE
Numbers with default locale: 1234567890 -> 1234567890
VM arguments: [-agentlib:jdwp=transport=dt_socket,suspend=y,address=localhost:58872, -ea, -javaagent:D:\eclipse-java-2020-09\eclipse\configuration\org.eclipse.osgi\3245\0\.cp\lib\javaagent-shaded.jar, -Dfile.encoding=UTF-8, -Dstdout.encoding=UTF-8, -Dstderr.encoding=UTF-8]
Program arguments: [--language=en, --debug]

Plugins:
+ OpeningHoursEditor (36196)
+ RoadSigns (36196)
+ apache-commons (36176)
+ buildings_tools (36200)
+ comfort0 (36200)
+ o5m (36126)
+ pbf (36176)
+ poly (36126)
+ reltoolbox (36200)
+ reverter (36196)
+ undelete (36126)
+ utilsplugin2 (36200)

Validator rules:
+ c:\josm\core\resources\data\validator\combinations.mapcss
+ c:\josm\core\resources\data\validator\geometry.mapcss
+ c:\josm\core\resources\data\validator\relation.mapcss
+ c:\josm\core\resources\data\validator\unnecessary.mapcss
+ d:\java_tools\JOSM\mygeometry.mapcss
+ https://josm.openstreetmap.de/josmfile?page=Rules/GermanySpecific&zip=1
}}}
"	defect	closed	normal	24.01	Core		fixed	template_report