Bug 245155 [TabbedProperties] IllegalArgumentException: Argument not valid
Steps to reproduce. 1. Open two editors that use the tabbed properties. I was using a WTP 3.1 driver (S-3.1M1-20080825023321) and opened up any two of the following editors: Web Page Editor, or DTD Editor, or WSDL Editor, or XML Schema Editor 2. Close one editor. You'll get the IllegalArgumentException. (See below). After this, any subsequent input changes to the properties view will result in this exception. Also the Tab text is not drawn, other than the one that is currently selected. I also tried closing and reopening the properties view, and the text is still not drawn. java.lang.IllegalArgumentException: Argument not valid at org.eclipse.swt.SWT.error(SWT.java:3761) at org.eclipse.swt.SWT.error(SWT.java:3695) at org.eclipse.swt.SWT.error(SWT.java:3666) at org.eclipse.swt.graphics.GC.setForeground(GC.java:4178) at org.eclipse.ui.internal.views.properties.tabbed.view.TabbedPropertyList$BottomNavigationElement.paint(TabbedPropertyList.java:443) at org.eclipse.ui.internal.views.properties.tabbed.view.TabbedPropertyList$BottomNavigationElement.access$0(TabbedPropertyList.java:431) at org.eclipse.ui.internal.views.properties.tabbed.view.TabbedPropertyList$7.paintControl(TabbedPropertyList.java:406) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:217) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1027) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1012) at org.eclipse.swt.widgets.Composite.WM_PAINT(Composite.java:1424) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3842) at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:337) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4541) at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method) at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2378) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3420) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193) 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:386) 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:45) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37) at java.lang.reflect.Method.invoke(Method.java:599) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504) at org.eclipse.equinox.launcher.Main.run(Main.java:1236)
bundles/org.eclipse.ui.views.properties.tabbed/src/org/eclipse/ui/internal/views/properties/tabbed/view/TabbedPropertyList.java
Point point = e.gc.textExtent(tab.getText());
				e.gc.drawLine(textIndent, bounds.height - 4, textIndent
					+ point.x, bounds.height - 4);
			}
			
			if (!hover) {
				e.gc.setForeground(listBackground);
				e.gc.drawLine(0, bounds.height - 1, bounds.width - 2,
						bounds.height - 1);
			}
		}
		/**
		 * Get the tab item.
		 * 
		 * @return the tab item.
		 */
		public ITabItem getTabItem() {
			return tab;
		}
		public String toString() {
			return tab.getText();
		}
	}
	/**
	 * The top navigation element in the tabbed property list. It looks like a
	 * scroll button when scrolling is needed or is just a spacer when no
	 * scrolling is required.
	 */
	public class TopNavigationElement extends Canvas {