IllegalArgumentException when drawing empty strings

[Klumbumbus]

What happens instead?

I get several of these errors with latest.

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

Revision: 8112
Repository Root: http://josm.openstreetmap.de/svn
Relative URL: ^/trunk
Last Changed Author: Klumbumbus
Last Changed Date: 2015-03-03 23:35:06 +0100 (Tue, 03 Mar 2015)
Build-Date: 2015-03-04 02:30:57
URL: http://josm.openstreetmap.de/svn/trunk
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last Changed Rev: 8112

Identification: JOSM/1.5 (8112 de) Windows 7 32-Bit
Memory Usage: 247 MB / 742 MB (123 MB allocated, but free)
Java version: 1.8.0_31, Oracle Corporation, Java HotSpot(TM) Client VM
VM arguments: [-Djava.security.manager, -Djava.security.policy=file:C:\Program Files\Java\jre1.8.0_31\lib\security\javaws.policy, -DtrustProxy=true, -Djnlpx.home=<java.home>\bin, -Djnlpx.origFilenameArg=C:\Program Files\josm-latest.jnlp, -Djnlpx.remove=true, -Djava.util.Arrays.useLegacyMergeSort=true, -Djnlpx.heapsize=256m,768m, -Djnlpx.splashport=54292, -Djnlpx.jvm=<java.home>\bin\javaw.exe, -Djnlpx.vmargs=LURqYXZhLnV0aWwuQXJyYXlzLnVzZUxlZ2FjeU1lcmdlU29ydD10cnVlAA==]
Program arguments: [--debug]
Dataset consistency test: No problems found

Plugins:
- DirectDownload (30892)
- DirectUpload (30892)
- HouseNumberTaggingTool (30892)
- OpeningHoursEditor (30962)
- PicLayer (30962)
- RoadSigns (30977)
- Tracer2 (30984)
- buildings_tools (30955)
- download_along (30892)
- editgpx (30892)
- imagery_offset_db (30892)
- measurement (30892)
- mirrored_download (30962)
- photo_geotagging (30967)
- photoadjust (30964)
- public_transport (30892)
- reltoolbox (30892)
- reverter (30990)
- tag2link (30962)
- terracer (30892)
- turnrestrictions (30962)
- undelete (30892)
- utilsplugin2 (31040)
- wikipedia (31035)

Last errors/warnings:
- E: Fehler beim Laden des Bildes 'error_small.png'
- W: Mappaint style "standard" (FIXME Highlight Warnings) icon "error_small.png" not found.
- E: java.lang.IllegalArgumentException: Zero length string passed to TextLayout constructor.
- E: java.lang.IllegalArgumentException: Zero length string passed to TextLayout constructor.

java.lang.IllegalArgumentException: Zero length string passed to TextLayout constructor.
	at java.awt.font.TextLayout.<init>(Unknown Source)
	at org.openstreetmap.josm.data.osm.visitor.paint.StyledMapRenderer.displayText(StyledMapRenderer.java:415)
	at org.openstreetmap.josm.data.osm.visitor.paint.StyledMapRenderer.drawBoxText(StyledMapRenderer.java:609)
	at org.openstreetmap.josm.gui.mappaint.BoxTextElemStyle.paintPrimitive(BoxTextElemStyle.java:184)
	at org.openstreetmap.josm.data.osm.visitor.paint.StyledMapRenderer.render(StyledMapRenderer.java:1673)
	at org.openstreetmap.josm.gui.layer.OsmDataLayer.paint(OsmDataLayer.java:347)
	at org.openstreetmap.josm.gui.MapView.paintLayer(MapView.java:536)
	at org.openstreetmap.josm.gui.MapView.paint(MapView.java:635)
	at javax.swing.JComponent.paintChildren(Unknown Source)
	at javax.swing.JComponent.paint(Unknown Source)
	at javax.swing.JComponent.paintToOffscreen(Unknown Source)
	at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(Unknown Source)
	at javax.swing.RepaintManager$PaintManager.paint(Unknown Source)
	at javax.swing.RepaintManager.paint(Unknown Source)
	at javax.swing.JComponent._paintImmediately(Unknown Source)
	at javax.swing.JComponent.paintImmediately(Unknown Source)
	at javax.swing.RepaintManager$4.run(Unknown Source)
	at javax.swing.RepaintManager$4.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
	at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
	at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
	at javax.swing.RepaintManager.prePaintDirtyRegions(Unknown Source)
	at javax.swing.RepaintManager.access$1300(Unknown Source)
	at javax.swing.RepaintManager$ProcessingRunnable.run(Unknown Source)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.awt.EventQueue.access$500(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.

[bastiK]

In 8113/josm:

fixed #11201 - don't create TextLayout for zero length string