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Build Identifier: I20100608-0911 When trying to expend the "Attributes" section in Task Editor, receiving IllegalArgumentException and no attributes were displayed in the editor. below is the stack trace: java.lang.IllegalArgumentException: Argument not valid at org.eclipse.swt.SWT.error(SWT.java:4064) at org.eclipse.swt.SWT.error(SWT.java:3998) at org.eclipse.swt.SWT.error(SWT.java:3969) at org.eclipse.swt.graphics.GC.setFont(GC.java:3351) at org.eclipse.ui.forms.widgets.ExpandableComposite$ExpandableLayout.layout(ExpandableComposite.java:307) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1546) at org.eclipse.swt.widgets.Composite.setBounds(Composite.java:1360) at org.eclipse.swt.widgets.Canvas.setBounds(Canvas.java:333) at org.eclipse.swt.widgets.Control.setBounds(Control.java:735) at org.eclipse.swt.layout.GridLayout.layout(GridLayout.java:689) at org.eclipse.swt.layout.GridLayout.layout(GridLayout.java:193) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1546) at org.eclipse.swt.widgets.Composite.setBounds(Composite.java:1360) at org.eclipse.swt.widgets.Control.setBounds(Control.java:735) at org.eclipse.ui.forms.widgets.SizeCache.setBounds(SizeCache.java:509) at org.eclipse.ui.forms.widgets.Form$FormLayout.layout(Form.java:159) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1546) at org.eclipse.swt.widgets.Composite.setBounds(Composite.java:1360) at org.eclipse.swt.widgets.Control.setBounds(Control.java:707) at org.eclipse.swt.custom.ScrolledCompositeLayout.layout(ScrolledCompositeLayout.java:109) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1546) at org.eclipse.swt.widgets.Composite.layout(Composite.java:951) at org.eclipse.swt.widgets.Composite.layout(Composite.java:909) at org.eclipse.ui.forms.widgets.SharedScrolledComposite.layout(SharedScrolledComposite.java:146) at org.eclipse.ui.forms.widgets.SharedScrolledComposite.reflow(SharedScrolledComposite.java:215) at org.eclipse.mylyn.tasks.ui.editors.AbstractTaskEditorPage.reflow(AbstractTaskEditorPage.java:1345) at org.eclipse.mylyn.internal.tasks.ui.editors.AbstractTaskEditorSection$1.expansionStateChanged(AbstractTaskEditorSection.java:66) at org.eclipse.ui.forms.widgets.ExpandableComposite.fireExpanding(ExpandableComposite.java:1068) at org.eclipse.ui.forms.widgets.ExpandableComposite.toggleState(ExpandableComposite.java:1052) at org.eclipse.ui.forms.widgets.ExpandableComposite.access$5(ExpandableComposite.java:1048) at org.eclipse.ui.forms.widgets.ExpandableComposite$2.linkActivated(ExpandableComposite.java:571) at org.eclipse.ui.forms.widgets.AbstractHyperlink.handleActivate(AbstractHyperlink.java:233) at org.eclipse.ui.forms.widgets.AbstractHyperlink.handleMouseUp(AbstractHyperlink.java:327) at org.eclipse.ui.forms.widgets.AbstractHyperlink.access$2(AbstractHyperlink.java:311) at org.eclipse.ui.forms.widgets.AbstractHyperlink$4.handleEvent(AbstractHyperlink.java:125) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3552) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3171) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2629) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2593) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2427) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:670) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:663) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574) at org.eclipse.equinox.launcher.Main.run(Main.java:1407) Reproducible: Always Steps to Reproduce: 1.Open a task in task editor (task is from Bugzillia task repository) 2.Click on Attributes section 3.nothing got expended and received unhandled event loop exception
Moving to platform since Mylyn does not do anything special with the font of the section. What Eclipse version and operating system are you using?
(In reply to comment #1) > Moving to platform since Mylyn does not do anything special with the font of > the section. What Eclipse version and operating system are you using? Eclipse 3.6.0 RedHat Enterprise Linux Client release 5.3
Not SWT
Can you provide the full steps required to reproduce the bug starting from the Eclipse SDK, including the list of components that need to be installed from an update site to include Mylyn
Without more information I cannot investigate this bug, closing.
We have seen another instance of this problem. I have attached a simple snippet that reproduces the exception. It happens when a single toolkit is used to create two sections on parents that have different fonts. When the second section is created the bold font used for the title of the first section is disposed.
Created attachment 189145 [details] snippet to reproduce bug
Thanks for the snippet, I will take a look at this.
Created attachment 189244 [details] Patch Here's a patch that fixes the snippet. With the patch FormToolkit does not dispose of any fonts it creates until the FormToolkiui is itself disposed. Can you try it out to verify that it fixes the original problem?
Patch committed to HEAD, Fixed
Setting status to Resolved/Fixed
