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/NewPackageCreationWizardPage.java
* @see WizardPage#createControl
	 */	
	public void createControl(Composite parent) {
		Composite composite= new Composite(parent, SWT.NONE);
		
		int nColumns= 3;
		MGridLayout layout= new MGridLayout();
		layout.marginWidth= 0;
		layout.marginHeight= 0;	
		layout.minimumWidth= SWTUtil.convertWidthInCharsToPixels(80, composite);
		layout.minimumHeight= SWTUtil.convertHeightInCharsToPixels(20, composite);
		layout.numColumns= 3;		
		composite.setLayout(layout);
		
		createContainerControls(composite, nColumns);
		createPackageControls(composite, nColumns);
		
		fPackageDialogField.setFocus();
		
		setControl(composite);
		WorkbenchHelp.setHelp(composite, new DialogPageContextComputer(this, IJavaHelpContextIds.NEW_PACKAGE_WIZARD_PAGE));
	}
	
	protected void createPackageControls(Composite composite, int nColumns) {
		fPackageDialogField.doFillIntoGrid(composite, nColumns - 1);
		DialogField.createEmptySpace(composite);		
	}
				
	
	private class PackageFieldAdapter implements IDialogFieldListener {