uncaught error with notes

[user_5359]

I use the menu (german) "Datei" "Hinweise in aktueller Ansicht runterladen" without any data.

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2015-12-31 13:54:58 +0100 (Thu, 31 Dec 2015)
Build-Date:2015-12-31 12:57:00
Revision:9229
Relative:URL: ^/trunk

Identification: JOSM/1.5 (9229 de) Mac OS X 10.11.2
Memory Usage: 499 MB / 910 MB (107 MB allocated, but free)
Java version: 1.8.0_66, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
VM arguments: [-Djava.library.path=/Applications/JOSM.app/Contents/MacOS, -DLibraryDirectory=/Users/georgverweyen/Library, -DDocumentsDirectory=/Users/georgverweyen/Documents, -DApplicationSupportDirectory=/Users/georgverweyen/Library/Application Support, -DCachesDirectory=/Users/georgverweyen/Library/Caches, -DSandboxEnabled=false, -Dapple.laf.useScreenMenuBar=true, -Dcom.apple.macos.use-file-dialog-packages=true, -Dcom.apple.macos.useScreenMenuBar=true, -Dcom.apple.mrj.application.apple.menu.about.name=JOSM, -Dcom.apple.smallTabs=true]

Plugins:
- FixAddresses (31772)
- OpeningHoursEditor (31772)
- SimplifyArea (31895)
- apache-commons (31895)
- ejml (31895)
- geotools (31895)
- jts (31772)
- opendata (31895)
- reverter (31895)
- tag2link (31910)
- utilsplugin2 (31895)

Last errors/warnings:
- W: Unable to remove primitives from TestError [tester=MapCSSTagCheckerAndRule [rule=GroupedMapCSSRule [selectors=[node[ParameterFunction~equal(class java.lang.Object ParameterFunction~tag(class org.openstreetmap.josm.gui.mappaint.Environment <leisure>),class java.lang.Object ParameterFunction~parent_tag(class org.openstreetmap.josm.gui.mappaint.Environment <leisure>))] >LinkSelector{conditions=null} *[leisure]], declaration=Declaration [instructions=[throwWarning: ArrayFunction~tr(class java.lang.String <{0} inside {1}>,class java.lang.String ArrayFunction~concat(class java.lang.Object <leisure=>,class java.lang.Object ParameterFunction~tag(class org.openstreetmap.josm.gui.mappaint.Environment <leisure>)),class java.lang.String ArrayFunction~concat(class java.lang.Object <leisure=>,class java.lang.Object ParameterFunction~tag(class org.openstreetmap.josm.gui.mappaint.Environment <leisure>)));], idx=14]]], code=3000, message=leisure=playground innerhalb von leisure=playground]
- E: java.lang.NullPointerException

java.lang.NullPointerException
	at org.openstreetmap.josm.actions.DownloadNotesInViewAction.actionPerformed(DownloadNotesInViewAction.java:37)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
	at javax.swing.AbstractButton.doClick(AbstractButton.java:376)
	at com.apple.laf.ScreenMenuItem.actionPerformed(ScreenMenuItem.java:125)
	at java.awt.MenuItem.processActionEvent(MenuItem.java:669)
	at java.awt.MenuItem.processEvent(MenuItem.java:628)
	at java.awt.MenuComponent.dispatchEventImpl(MenuComponent.java:351)
	at java.awt.MenuComponent.dispatchEvent(MenuComponent.java:339)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:761)
	at java.awt.EventQueue.access$500(EventQueue.java:97)
	at java.awt.EventQueue$3.run(EventQueue.java:709)
	at java.awt.EventQueue$3.run(EventQueue.java:703)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
	at java.awt.EventQueue$4.run(EventQueue.java:731)
	at java.awt.EventQueue$4.run(EventQueue.java:729)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

[simon04]

To reproduce:

1. Add new data layer
2. Remove all data layers
3. Click "Download notes in current view" in File menu

[simon04]

In 9276/josm:

fix #12283 - Download notes in current view: fix NPE