After rotation returned Data gets deleted.

Hey, Everytime I rotate my Application all Data gets deleted. For example in my public Fragment getItem(int position) I return a certain value for every Item Fragment in the Viewpager, but when I rotete the screen, the value is gone. I hope you could understand what I mean. Here is my code:

public class Activity_result extends SherlockFragmentActivity {

private static final String[] CONTENT = new String[] { "GRUPPE A", "GRUPPE B", "GRUPPE C", "GRUPPE D", "GRUPPE E"};

TestFragmentAdapter mAdapter;
ViewPager mPager;
PageIndicator mIndicator;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.tabs_viewpager);

    mAdapter = new TestFragmentAdapter(getSupportFragmentManager());

    mPager = (ViewPager)findViewById(R.id.pager);
    mPager.setAdapter(mAdapter);

    mIndicator = (TabPageIndicator)findViewById(R.id.indicator);
    mIndicator.setViewPager(mPager);

}

class TestFragmentAdapter extends FragmentPagerAdapter {        
    private int mCount = CONTENT.length;

    public TestFragmentAdapter(FragmentManager fm) {
        super(fm);
    }

    @Override
    public Fragment getItem(int position) {
        switch (position)
        {
        case 0:
            return Fragment_results.newInstance("hi"); 
        case 1:
            return Fragment_results.newInstance(String.valueOf(1));
        case 2:
            return Fragment_results.newInstance(String.valueOf(2));
        case 3:
            return Fragment_results.newInstance(String.valueOf(3));
        case 4:
            return Fragment_results.newInstance(String.valueOf(4));
        case 5:
            return Fragment_results.newInstance(String.valueOf(5));
        case 6:
            return Fragment_results.newInstance(String.valueOf(6));

        }
        return Fragment_results.newInstance(String.valueOf(10)); 
    }

   public String getstring(int i){

       return "hi"; 
   }
    @Override
    public int getCount() {
        return mCount;
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return CONTENT[position];
    }
}

 }


   public class Fragment_results extends SherlockFragment {
    private String mContent = "???";

    public static Fragment_results newInstance(String text) {
        Fragment_results fragment = new Fragment_results();
        fragment.mContent = text;
        return fragment;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.layout_result, null);
        String text = "Tab Nr: " + mContent;
        ((TextView)view.findViewById(R.id.text)).setText(text);

        return view;
    }
}

Now before rotating everything works well, so for the first fragment in the Viewpager the TextView shows "hi", for the second a 2, for the third a 3 etc... But when you rotate the screen, you'll just see the default value of the String mContent (which is "???" ). How can I prevent the Data I returned to be deleted?

Here are screenshots:

http://imgur.com/a/xpkdz

JakeWharton / ViewPagerIndicator

After rotation returned Data gets deleted. #137