Bug 712211

Summary:	Null Pointer Exception in SwingUtilities2
Product:	[Fedora] Fedora	Reporter:	Kyle J. Harms <kyle.harms>
Component:	java-1.6.0-openjdk	Assignee:	Denis Lila <dlila>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	15	CC:	ahughes, dbhole, jon.vanalten, jvanek, lkundrak, mjw, mmatejov, omajid
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-07-26 06:18:20 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Kyle J. Harms 2011-06-09 19:39:06 UTC

Description of problem:
Java applications (For example: Alice) with empty swing popup menus crash because of a null pointer exception in SwingUtilities2.


Version-Release number of selected component (if applicable):
$ java -version
java version "1.6.0_22"
OpenJDK Runtime Environment (IcedTea6 1.10.1) (fedora-57.1.10.1.fc15-x86_64)
OpenJDK 64-Bit Server VM (build 20.0-b11, mixed mode)


How reproducible:
Use test program: http://hg.openjdk.java.net/jdk7/jdk7/jdk/rev/d353dcff4f14

  
Actual results:
java.lang.NullPointerException
	at sun.swing.SwingUtilities2.getLeftSideBearing(SwingUtilities2.java:241)
	at sun.swing.MenuItemLayoutHelper.getLeftExtraWidth(MenuItemLayoutHelper.java:162)
	at sun.swing.MenuItemLayoutHelper.calcExtraWidths(MenuItemLayoutHelper.java:158)
	at sun.swing.MenuItemLayoutHelper.reset(MenuItemLayoutHelper.java:148)
	at javax.swing.plaf.synth.SynthMenuItemLayoutHelper.<init>(SynthMenuItemLayoutHelper.java:119)
	at javax.swing.plaf.synth.SynthGraphicsUtils.getPreferredMenuItemSize(SynthGraphicsUtils.java:434)
	at javax.swing.plaf.synth.SynthMenuItemUI.getPreferredMenuItemSize(SynthMenuItemUI.java:195)
	at javax.swing.plaf.basic.BasicMenuItemUI.getPreferredSize(BasicMenuItemUI.java:363)
	at javax.swing.JComponent.getPreferredSize(JComponent.java:1634)
	at javax.swing.BoxLayout.checkRequests(BoxLayout.java:481)
	at javax.swing.BoxLayout.preferredLayoutSize(BoxLayout.java:298)
	at javax.swing.plaf.synth.DefaultMenuLayout.preferredLayoutSize(DefaultMenuLayout.java:66)
	at java.awt.Container.preferredSize(Container.java:1605)
	at java.awt.Container.getPreferredSize(Container.java:1590)
	at javax.swing.JComponent.getPreferredSize(JComponent.java:1636)
	at javax.swing.JPopupMenu.adjustPopupLocationToFitScreen(JPopupMenu.java:358)
	at javax.swing.JPopupMenu.getPopup(JPopupMenu.java:791)
	at javax.swing.JPopupMenu.setVisible(JPopupMenu.java:748)
	at javax.swing.JPopupMenu.show(JPopupMenu.java:921)
...


Expected results:
No exception. No crash.


Additional info:
jdk7 bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7037283
jdk7 fix: http://hg.openjdk.java.net/jdk7/jdk7/jdk/rev/d353dcff4f14

Comment 1 Denis Lila 2011-06-10 15:43:41 UTC

Hi Kyle.

Thank you very much for finding the changeset that fixes this (in jdk7). I will test it out and backport it.

Comment 2 Kyle J. Harms 2011-06-17 17:19:03 UTC

I reported the wrong bug for openjdk for this:  http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7036148

Comment 3 Denis Lila 2011-06-17 17:26:05 UTC

That makes sense. The first bug description didn't seem very related.

Either way, the changeset link you posted does fix the problem, and I've backported it. The fix should be in the next update of icedtea6-1.10.