Join overlapping Areas on only slightly overlapping polygons drops 1 polygon

[Ldp]

NPE when trying to join the 2 areas in the attached file. The nodes where the two areas appear to be touching are actually a very small distance apart. If I merge these first, then I can join the areas without problem.

JOSM built with ant clean dist. Plugins updated.

Build-Date: 2009-11-15 00:30:43		
Revision: 2454
Is-Local-Build: true

Memory Usage: 22 MB / 1016 MB (1 MB allocated, but free)
Java version: 1.6.0_17

Plugins: AddrInterpolationremotecontrolutilspluginvalidatorwmsplugin
Plugin AddrInterpolation Version: 18503
Plugin remotecontrol Version: 18503
Plugin utilsplugin Version: 18503
Plugin validator Version: 18600
Plugin wmsplugin Version: 18597


java.lang.NoSuchMethodError: org.openstreetmap.josm.data.osm.DataSet.setSelected([Lorg/openstreetmap/josm/data/osm/OsmPrimitive;)V
	at UtilsPlugin.JoinAreasAction.joinWays(JoinAreasAction.java:609)
	at UtilsPlugin.JoinAreasAction.joinOuterWays(JoinAreasAction.java:572)
	at UtilsPlugin.JoinAreasAction.joinAreas(JoinAreasAction.java:213)
	at UtilsPlugin.JoinAreasAction.actionPerformed(JoinAreasAction.java:170)
	at javax.swing.SwingUtilities.notifyAction(Unknown Source)
	at javax.swing.JComponent.processKeyBinding(Unknown Source)
	at javax.swing.KeyboardManager.fireBinding(Unknown Source)
	at javax.swing.KeyboardManager.fireKeyboardAction(Unknown Source)
	at javax.swing.JComponent.processKeyBindingsForAllComponents(Unknown Source)
	at javax.swing.JComponent.processKeyBindings(Unknown Source)
	at javax.swing.JComponent.processKeyEvent(Unknown Source)
	at java.awt.Component.processEvent(Unknown Source)
	at java.awt.Container.processEvent(Unknown Source)
	at java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(Unknown Source)
	at java.awt.KeyboardFocusManager.redispatchEvent(Unknown Source)
	at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(Unknown Source)
	at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(Unknown Source)
	at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source)
	at java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source)
	at java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Window.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)

[jttt]

I've fixed the NoSuchMethodError (not NullPointerException as stated in ticket). Anyway the result of join areas action is probably not correct...

[Gubaer]

Your JOSM version and the utilsplugin aren't in sync. Please update both.

[Ldp]

Updated both now. I thought I did that before filing the ticket. I even said so: "JOSM built with ant clean dist. Plugins updated."

I'm now at JOSM 2473, utilsplugin 18621, where it doesn't show the java error, but does exhibit another effect: the rightmost polygon is simply gone after the join. Of course: the example has a 'flaw', in that the polygons are overlapping very slightly instead of just touching or overlapping by a wider margin.

If I make them overlap by just a tiny bit more (select the right polygon and shift-arrow it a bit into the left polygon) it also drops the right polygon, but leaves a double line where they overlapped.

And again, if I overlap them by even more, they *are* correctly joined, and the resulting polygon follows the exact outline of the 2 joined polygons combined.

Is the join behaviour driven by distance or amount of overlap?

[stoecker]

Still an issue? I recently fixed join areas.