Bug 162916 [Undo] [IDE] Invalid thread access from new file wizard
Build: I20061031-0656 1) Create a simple project 2) In the file system, add file "a.txt" to the project 3) Back in Eclipse, do File > New > File, select the project and enter a name of "a.txt". An internal error occurs because it is trying to open an error dialog from a modal context thread: org.eclipse.swt.SWTException: Invalid thread access at org.eclipse.swt.SWT.error(SWT.java:3407) at org.eclipse.swt.SWT.error(SWT.java:3330) at org.eclipse.swt.SWT.error(SWT.java:3301) at org.eclipse.swt.widgets.Widget.error(Widget.java:432) at org.eclipse.swt.widgets.Shell.<init>(Shell.java:271) at org.eclipse.swt.widgets.Shell.<init>(Shell.java:357) at org.eclipse.jface.window.Window.createShell(Window.java:482) at org.eclipse.jface.window.Window.create(Window.java:425) at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1111) at org.eclipse.jface.window.Window.open(Window.java:785) at org.eclipse.jface.dialogs.ErrorDialog.open(ErrorDialog.java:296) at org.eclipse.jface.dialogs.ErrorDialog.openError(ErrorDialog.java:360) at org.eclipse.jface.dialogs.ErrorDialog.openError(ErrorDialog.java:325) at org.eclipse.ui.dialogs.WizardNewFileCreationPage$4.run(WizardNewFileCreationPage.java:343) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:113)
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/dialogs/WizardNewFolderMainPage.java
protected boolean validatePage() {
		boolean valid = true;
		if (!resourceGroup.areAllValuesValid()) {
			
			if (resourceGroup.getProblemType() == ResourceAndContainerGroup.PROBLEM_RESOURCE_EMPTY
					|| resourceGroup.getProblemType() == ResourceAndContainerGroup.PROBLEM_CONTAINER_EMPTY) {
				setMessage(resourceGroup.getProblemMessage());
				setErrorMessage(null);
			} else {
				setErrorMessage(resourceGroup.getProblemMessage());
			}
			valid = false;
		}
		IStatus linkedResourceStatus = null;
		if (valid) {
			linkedResourceStatus = validateLinkedResource();
			if (linkedResourceStatus.getSeverity() == IStatus.ERROR) {
				valid = false;
			}
		}
		
		if (valid
				&& (linkedResourceStatus == null || linkedResourceStatus.isOK())) {
			setMessage(null);
			setErrorMessage(null);
		}
		return valid;
	}
}