DRY way to manage fragments

MainActivity.java

static Map<String, Class<?>> fragmentsClassMap;

static {    	
	fragmentsClassMap = new HashMap<String, Class<?>>();
	
	Class<?>[] fragmentClassArray = new Class<?>[] {
	    Fragment1.class,
	    Fragment2.class
	};
	
	for (Class<?> clazz : fragmentClassArray) {
		fragmentsClassMap.put(clazz.getName(), clazz);
	}
}

public void switchFragment(String fragmentName) {
	switchFragment(fragmentName, null);
}
    
public void switchFragment(String fragmentName, Bundle argsBundle) {
	Class<?> clazz = fragmentsClassMap.get(fragmentName);
	try {
		Fragment newFragment = (Fragment) clazz.newInstance();
		if (argsBundle != null) {
			newFragment.setArguments(argsBundle);
		}
		FragmentManager fragmentManager = getSupportFragmentManager();        
		fragmentManager.beginTransaction()
			.replace(R.id.container, newFragment)
			.addToBackStack(fragmentName)
			.commit();
	} catch (InstantiationException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (IllegalAccessException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
}