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
IPath packagePath= pack.getUnderlyingResource().getFullPath();
					if (outputPath.isPrefixOf(packagePath)) {
						status.setError(NewWizardMessages.getString("NewPackageCreationWizardPage.error.IsOutputFolder")); 
						return status;
					}
				}		
				if (pack.exists()) {
					if (pack.containsJavaResources() || !pack.hasSubpackages()) {
						status.setError(NewWizardMessages.getString("NewPackageCreationWizardPage.error.PackageExists")); 
					} else {
						status.setWarning(NewWizardMessages.getString("NewPackageCreationWizardPage.warning.PackageNotShown"));  
					}
				}
			} catch (JavaModelException e) {
				JavaPlugin.log(e.getStatus());
			}
			
		}
		return status;
	}
	
	protected String getPackageText() {
		return fPackageDialogField.getText();
	}
	
	protected void setPackageText(String str) {
		fPackageDialogField.setText(str);
	}