Unexpected exception when opening GPX directly from Android phone

[anonymous]

What steps will reproduce the problem?

1. Connect Phone to PC using MTP
2. Open Phone files in Nautilus file browser
3. Drag GPX file from Phone to JOSM

What is the expected result?

1.) GPX files are opened directly from phone and displayed in JOSM
2.) If opening files from an MTP device is not supported, Give a nice error about unsupported storage location. But don't try to parse the URL as an IPv6 address.

What happens instead?

URL is being parsed as IPv6 Address which results in a 'Unexpected Exception'

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: 2019-12-01 23:10:15 +0100 (Sun, 01 Dec 2019)
Build-Date:2019-12-02 02:30:57
Revision:15553
Relative:URL: ^/trunk

Identification: JOSM/1.5 (15553 en) Linux Ubuntu 16.04.6 LTS
Memory Usage: 1080 MB / 3540 MB (692 MB allocated, but free)
Java version: 1.8.0_232-8u232-b09-0ubuntu1~16.04.1-b09, Private Build, OpenJDK 64-Bit Server VM
Screen: :0.0 1920x1080
Maximum Screen Size: 1920x1080
Java package: openjdk-8-jre:amd64-8u232-b09-0ubuntu1~16.04.1
fonts-noto: fonts-noto:-

Plugins:
+ pbf (35248)
+ print (35248)

Last errors/warnings:
- W: No configuration settings found.  Using hardcoded default values for all pools.
- E: Handled by bug report queue: java.awt.dnd.InvalidDnDOperationException: java.net.URISyntaxException: Malformed IPv6 address at index 7: mtp://[usb:001,008]/Card/Android/data/net.osmand.plus/files/tracks/rec/2019-12-21_15-11_Sat.gpx


=== REPORTED CRASH DATA ===
AbstractStackTransferHandler#importData:
 - paster: org.openstreetmap.josm.gui.datatransfer.importers.FilePaster@3ed158e7
 - flavors: 
    - [Ljava.awt.datatransfer.DataFlavor;@635271ac

Warning issued by: AbstractStackTransferHandler#importData

=== STACK TRACE ===
Thread: AWT-EventQueue-0 (16) of main
java.awt.dnd.InvalidDnDOperationException: java.net.URISyntaxException: Malformed IPv6 address at index 7: mtp://[usb:001,008]/Card/Android/data/net.osmand.plus/files/tracks/rec/2019-12-21_15-11_Sat.gpx
	at sun.awt.dnd.SunDropTargetContextPeer.getTransferData(SunDropTargetContextPeer.java:271)
	at sun.awt.datatransfer.TransferableProxy.getTransferData(TransferableProxy.java:73)
	at java.awt.dnd.DropTargetContext$TransferableProxy.getTransferData(DropTargetContext.java:376)
	at org.openstreetmap.josm.gui.datatransfer.importers.FilePaster.importData(FilePaster.java:34)
	at org.openstreetmap.josm.gui.datatransfer.AbstractStackTransferHandler.importData(AbstractStackTransferHandler.java:58)
	at org.openstreetmap.josm.gui.datatransfer.AbstractStackTransferHandler.importData(AbstractStackTransferHandler.java:47)
	at javax.swing.TransferHandler$DropHandler.drop(TransferHandler.java:1544)
	at java.awt.dnd.DropTarget.drop(DropTarget.java:455)
	at javax.swing.TransferHandler$SwingDropTarget.drop(TransferHandler.java:1282)
	at sun.awt.dnd.SunDropTargetContextPeer.processDropMessage(SunDropTargetContextPeer.java:538)
	at sun.awt.X11.XDropTargetContextPeer.processDropMessage(XDropTargetContextPeer.java:184)
	at sun.awt.dnd.SunDropTargetContextPeer$EventDispatcher.dispatchDropEvent(SunDropTargetContextPeer.java:852)
	at sun.awt.dnd.SunDropTargetContextPeer$EventDispatcher.dispatchEvent(SunDropTargetContextPeer.java:776)
	at sun.awt.dnd.SunDropTargetEvent.dispatch(SunDropTargetEvent.java:48)
	at java.awt.Component.dispatchEventImpl(Component.java:4744)
	at java.awt.Container.dispatchEventImpl(Container.java:2297)
	at java.awt.Component.dispatchEvent(Component.java:4711)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4904)
	at java.awt.LightweightDispatcher.processDropTargetEvent(Container.java:4609)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4471)
	at java.awt.Container.dispatchEventImpl(Container.java:2283)
	at java.awt.Window.dispatchEventImpl(Window.java:2746)
	at java.awt.Component.dispatchEvent(Component.java:4711)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:760)
	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:74)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:84)
	at java.awt.EventQueue$4.run(EventQueue.java:733)
	at java.awt.EventQueue$4.run(EventQueue.java:731)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:730)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
	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)

[Don-vip]

Closed as duplicate of #13016.