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From: "hendrich at informatik dot uni-hamburg dot de" <gcc-bugzilla@gcc.gnu.org>
To: java-prs@gcc.gnu.org
Subject: [Bug AWT/19845] New: Swing ToolTipManager and getLocationOnScreen
Date: Wed, 09 Feb 2005 10:19:00 -0000 [thread overview]
Message-ID: <20050209100759.19845.hendrich@informatik.uni-hamburg.de> (raw)
javax.swing.ToolTipManager causes (eternal) NullPointerExceptions
when JToolTips are enabled on non-showing JComponents, e.g. on
not-yet-shown dialog windows or just-closed dialog windows.
If the bug happens, Swing is unusable, because the main GUI thread
never recovers from the NPEs. ToolTipManager should probably ignore
non-showing components and should be more robust...
I have no small testcase, but a typical stack trace looks like this:
Exception during event dispatch:
java.awt.IllegalComponentStateException: component not showing
at java.awt.Component.getLocationOnScreen() (/opt/gcc40/lib/libgcj.so.6.0.0)
at javax.swing.SwingUtilities.convertPointFromScreen(java.awt.Point,
java.awt.Component) (/opt/gcc40/lib/libgcj.so.6.0.0)
at javax.swing.SwingUtilities.convertPoint(java.awt.Component, int, int,
java.awt.Component) (/opt/gcc40/lib/libgcj.so.6.0.0)
at javax.swing.SwingUtilities.convertPoint(java.awt.Component,
java.awt.Point, java.awt.Component) (/opt/gcc40/lib/libgcj.so.6.0.0)
at
javax.swing.ToolTipManager.getContentPaneDeepestComponent(java.awt.event.MouseEvent)
(/opt/gcc40/lib/libgcj.so.6.0.0)
at javax.swing.ToolTipManager.mouseExited(java.awt.event.MouseEvent)
(/opt/gcc40/lib/libgcj.so.6.0.0)
--
Summary: Swing ToolTipManager and getLocationOnScreen
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: AWT
AssignedTo: fitzsim at redhat dot com
ReportedBy: hendrich at informatik dot uni-hamburg dot de
CC: gcc-bugs at gcc dot gnu dot org,java-prs at gcc dot gnu
dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19845
next reply other threads:[~2005-02-09 10:08 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-09 10:19 hendrich at informatik dot uni-hamburg dot de [this message]
2005-02-12 22:35 ` [Bug AWT/19845] " pinskia at gcc dot gnu dot org
2005-08-24 19:28 ` [Bug swing/19845] " fitzsim at redhat dot com
2005-09-08 18:51 ` abalkiss at redhat dot com
2005-09-09 20:46 ` langel at redhat dot com
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