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
return StatusUtil.getMoreSevere(fContainerStatus, fPackageStatus);
	}	
		
	
			
	/**
	 * Verify the input for the package field
	 */
	private IStatus packageChanged() {
		StatusInfo status= new StatusInfo();
		String packName= fPackageDialogField.getText();
		if (!"".equals(packName)) { 
			IStatus val= JavaConventions.validatePackageName(packName);
			if (val.getSeverity() == IStatus.ERROR) {
				status.setError(NewWizardMessages.getFormattedString("NewPackageCreationWizardPage.error.InvalidPackageName", val.getMessage())); 
				return status;
			} else if (val.getSeverity() == IStatus.WARNING) {
				status.setWarning(NewWizardMessages.getFormattedString("NewPackageCreationWizardPage.warning.DiscouragedPackageName", val.getMessage())); 
			}
		} else {
			status.setError(NewWizardMessages.getString("NewPackageCreationWizardPage.error.DefaultPackageExists")); 
			return status;
		}			
		IPackageFragmentRoot root= getPackageFragmentRoot();
		if (root != null) {
			IPackageFragment pack= root.getPackageFragment(packName);
			try {
				IPath rootPath= root.getPath();
				IPath outputPath= root.getJavaProject().getOutputLocation();
				if (rootPath.isPrefixOf(outputPath) && !rootPath.equals(outputPath)) {