Bug 5765 New Class button in empty workspace should be more supportive
User feedback: "Confused how to create my first project" We should be more supportive in the UI for this special case since it is a first time experience with the UI. Therefore when the workbench is empty we should offer to create a new Java project. Minimal solution is to show an info dialog that explains that user should create a project first and offer a button to open the Java project wizard. The same is true for the new package and new interface buttons.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/NewInterfaceCreationWizardPage.java
/**
	 * Finds the most severe error (if there is one)
	 */
	private IStatus findMostSevereStatus() {
		return StatusUtil.getMostSevere(new IStatus[] {
			fContainerStatus,
			isEnclosingTypeSelected() ? fEnclosingTypeStatus : fPackageStatus,
			fTypeNameStatus,
			fModifierStatus,
			fSuperInterfacesStatus
		});		
	}
		
	/**
	 * @see ContainerPage#handleFieldChanged
	 */
	protected void handleFieldChanged(String fieldName) {
		super.handleFieldChanged(fieldName);
		
		updateStatus(findMostSevereStatus());
	}
	
	
	
	
	/**
	 * @see WizardPage#createControl