Bug 103026 When detected a 1.5 JDK on a fresh workspace as a default the default compiler complaince should be switch to 5.0
3.1 Compiling with compiler complaince 1.4 against a 5.0 VM can cause some trouble with covariant return types. Therefore when detecting the default VM for a fresh workspace the launching plug-in should switch the default compiler compliance to 5.0 when a 1.5 VM is detected.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/JavaProjectWizardFirstPage.java
widgetDefaultSelected(e);
		}
		/* (non-Javadoc)
		 * @see org.eclipse.swt.events.SelectionListener#widgetDefaultSelected(org.eclipse.swt.events.SelectionEvent)
		 */
		public void widgetDefaultSelected(SelectionEvent e) {
			String jreID= BuildPathSupport.JRE_PREF_PAGE_ID;
			PreferencesUtil.createPreferenceDialogOn(getShell(), jreID, new String[] { jreID  }, null).open();
			handleComplianceChange();
			fJREGroup.handlePossibleComplianceChange();
		}
	}
	/**
	 * Validate this page and show appropriate warnings and error NewWizardMessages.
	 */
	private final class Validator implements Observer {
		public void update(Observable o, Object arg) {
			final IWorkspace workspace= JavaPlugin.getWorkspace();
			final String name= fNameGroup.getName();
			
			if (name.length() == 0) { 
				setErrorMessage(null);
				setMessage(NewWizardMessages.JavaProjectWizardFirstPage_Message_enterProjectName); 
				setPageComplete(false);
				return;
			}
			
			final IStatus nameStatus= workspace.validateName(name, IResource.PROJECT);
			if (!nameStatus.isOK()) {
				setErrorMessage(nameStatus.getMessage());