jOSM crashed at start

[Penegal]

What steps will reproduce the problem?

1. Start jOSM; it will crash while loading plugins.

What is the expected result?

To have jOSM started.

What happens instead?

This bug.

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

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2017-02-02 01:22:52 +0100 (Thu, 02 Feb 2017)
Build-Date:2017-02-02 02:33:28
Revision:11526
Relative:URL: ^/trunk

Identification: JOSM/1.5 (11526 fr) Mac OS X 10.12.3
Memory Usage: 428 MB / 1820 MB (137 MB allocated, but free)
Java version: 1.8.0_77-b03, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: Display 69677504 1280x800
Maximum Screen Size: 1280x800

Plugins:
+ apache-commons (32994)
+ cadastre-fr (33088)
+ download_along (32946)
+ ejml (32680)
+ geotools (33042)
+ jts (32699)
+ opendata (33088)
+ utilsplugin2 (33124)
+ waydownloader (33088)

Map paint styles:
+ <josm.userdata>/Styles_Power-style.mapcss

Last errors/warnings:
- E: Handled by bug report queue: java.lang.NullPointerException


=== REPORTED CRASH DATA ===
BugReportExceptionHandler#handleException:
No data collected.

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: main (1)
java.lang.NullPointerException
	at java.awt.Dimension.<init>(Dimension.java:111)
	at java.awt.Component.getMaximumSize(Component.java:2772)
	at java.awt.Container.getMaximumSize(Container.java:1894)
	at javax.swing.JComponent.getMaximumSize(JComponent.java:1700)
	at javax.swing.JComponent.paramString(JComponent.java:5543)
	at javax.swing.AbstractButton.paramString(AbstractButton.java:2300)
	at javax.swing.JButton.paramString(JButton.java:267)
	at java.awt.Component.toString(Component.java:8143)
	at java.lang.String.valueOf(String.java:2994)
	at java.lang.StringBuilder.append(StringBuilder.java:131)
	at java.awt.event.HierarchyEvent.paramString(HierarchyEvent.java:329)
	at java.awt.AWTEvent.toString(AWTEvent.java:406)
	at java.lang.String.valueOf(String.java:2994)
	at sun.util.logging.PlatformLogger$JavaLoggerProxy.doLog(PlatformLogger.java:626)
	at sun.util.logging.PlatformLogger.finest(PlatformLogger.java:402)
	at java.awt.Component.dispatchEventImpl(Component.java:4729)
	at java.awt.Container.dispatchEventImpl(Container.java:2294)
	at java.awt.Component.dispatchEvent(Component.java:4713)
	at java.awt.Component.createHierarchyEvents(Component.java:5551)
	at java.awt.Container.createHierarchyEvents(Container.java:1445)
	at java.awt.Container.removeAll(Container.java:1313)
	at org.openstreetmap.josm.gui.preferences.ToolbarPreferences.refreshToolbarControl(ToolbarPreferences.java:1109)
	at org.openstreetmap.josm.gui.MainApplication.loadLatePlugins(MainApplication.java:414)
	at org.openstreetmap.josm.gui.MainApplication.main(MainApplication.java:338)

[Penegal]

Screenshot of the bug

[Penegal]

Please note that the bug vanished after upgrading to v11639.

[Don-vip]

Closed as duplicate of #13764.