Bug 5571 JAR Packager: Reveal first checked project
If the list of projects in the JAR Packager is long it is possible that the shown projects are not checked even though there are checked projects (due to current selection). ==> reveal the first checked project.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/jarpackager/JarPackageWizardPage.java
createPlainLabel(composite, JarPackagerMessages.getString("JarPackageWizardPage.options.label")); 
		createOptionsGroup(composite);
		restoreResourceSpecificationWidgetValues(); 
		restoreWidgetValues();
		if (fInitialSelection != null)
			setupBasedOnInitialSelections();
		setControl(composite);
		update();
		giveFocusToDestination();
		
		WorkbenchHelp.setHelp(composite, new DialogPageContextComputer(this, IJavaHelpContextIds.JARPACKAGER_WIZARD_PAGE));								
	}
	/**
	 *	Create the export options specification widgets.
	 *
	 *	@param parent org.eclipse.swt.widgets.Composite
	 */
	protected void createOptionsGroup(Composite parent) {
		Composite optionsGroup= new Composite(parent, SWT.NONE);
		GridLayout layout= new GridLayout();
		layout.marginHeight= 0;
		optionsGroup.setLayout(layout);
		fCompressCheckbox= new Button(optionsGroup, SWT.CHECK | SWT.LEFT);
		fCompressCheckbox.setText(JarPackagerMessages.getString("JarPackageWizardPage.compress.text")); 
		fCompressCheckbox.addListener(SWT.Selection, this);
		fOverwriteCheckbox= new Button(optionsGroup, SWT.CHECK | SWT.LEFT);
		fOverwriteCheckbox.setText(JarPackagerMessages.getString("JarPackageWizardPage.overwrite.text")); 
		fOverwriteCheckbox.addListener(SWT.Selection, this);
	}
	/**