Bug 312888 Problems when entering the linked folder location
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/dialogs/WizardNewFileCreationPage.java
private boolean isFilteredByParent() {
		if ((linkedResourceGroup == null) || linkedResourceGroup.isEnabled())
			return false;
		IPath containerPath = resourceGroup.getContainerFullPath();
		if (containerPath == null)
			return false;
		String resourceName = resourceGroup.getResource();
		if (resourceName == null)
			return false;
		if (resourceName.length() > 0) {
			IPath newFolderPath = containerPath.append(resourceName);
			IFile newFileHandle = createFileHandle(newFolderPath);
			IWorkspace workspace = newFileHandle.getWorkspace();
			return !workspace.validateFiltered(newFileHandle).isOK();
		}
		return false;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.dialogs.DialogPage#setVisible(boolean)
	 */
	public void setVisible(boolean visible) {
		super.setVisible(visible);
		if (visible) {
			resourceGroup.setFocus();
		}
	}
}