Null pointer exception when trying to store

Question

I'm getting Null pointer exception when trying to upload image and store edittext 

 

my log cat below

 

10-11 10:29:12.908 2396-2396/com.example.sofari.tiffanezni E/AndroidRuntime: FATAL EXCEPTION: main

Process: com.example.sofari.tiffanezni, PID: 2396

java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.graphics.Bitmap.compress(android.graphics.Bitmap$CompressFormat, int, java.io.OutputStream)' on a null object reference

at com.example.sofari.tiffanezni.Register.profileImage(Register.java:146)

at com.example.sofari.tiffanezni.Register.getValues(Register.java:160)

at com.example.sofari.tiffanezni.Register.addContact(Register.java:166)

at com.example.sofari.tiffanezni.Register.access$000(Register.java:43)

at com.example.sofari.tiffanezni.Register$1.onClick(Register.java:74)

at android.view.View.performClick(View.java:5637)

at android.view.View$PerformClick.run(View.java:22429)

at android.os.Handler.handleCallback(Handler.java:751)

at android.os.Handler.dispatchMessage(Handler.java:95)

at android.os.Looper.loop(Looper.java:154)

at android.app.ActivityThread.main(ActivityThread.java:6119)

at java.lang.reflect.Method.invoke(Native Method)

at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)

at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776) 

Register class:

public class Register extends AppCompatActivity {
    DatabaseHelper db;
    Button btnchosen,btnajout;
   private  EditText editpseudo,editnom,editphone,editdob,editville,editsexe,editgroupe,editdatedon;
   private  ImageView pic;
    byte[] photo;
    private Contact datamodel;
   // private dataAdapter data;
    Bitmap bp;
    private String fpseudo,fnom,fphone,fdob,fville,fsexe,fgroupe,fdatedon;

    @Override
    public void onCreate( Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);
       db = new DatabaseHelper(this);

        editpseudo=(EditText)findViewById(R.id.input_pseudo);
        editnom=(EditText)findViewById(R.id.input_pseudo);
        editphone=(EditText)findViewById(R.id.input_pseudo);
        editdob=(EditText)findViewById(R.id.input_pseudo);
        editville=(EditText)findViewById(R.id.input_pseudo);
        editsexe=(EditText)findViewById(R.id.input_pseudo);
        editgroupe=(EditText)findViewById(R.id.input_pseudo);
        editdatedon=(EditText)findViewById(R.id.input_pseudo);
        pic=(ImageView)findViewById(R.id.imageView4);
        btnajout=(Button)findViewById(R.id.btn_enr);
        btnchosen=(Button)findViewById(R.id.btn_chosen);
         btnajout.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
                 addContact();
             }
         });
          btnchosen.setOnClickListener(new View.OnClickListener() {
              @Override
              public void onClick(View view) {
                  selectImage();
              }
          });
             }



    public void selectImage(){
        Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
        photoPickerIntent.setType("image/*");
        startActivityForResult(photoPickerIntent, 2);
    }


    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        switch(requestCode) {
            case 2:
                if(resultCode == RESULT_OK){
                    Uri choosenImage = data.getData();

                    if(choosenImage !=null){

                        bp=decodeUri(choosenImage, 400);
                        pic.setImageBitmap(bp);
                    }
                }
        }
    }
    protected Bitmap decodeUri(Uri selectedImage, int REQUIRED_SIZE) {

        try {

            // Decode image size
            BitmapFactory.Options o = new BitmapFactory.Options();
            o.inJustDecodeBounds = true;
            BitmapFactory.decodeStream(getContentResolver().openInputStream(selectedImage), null, o);

            // The new size we want to scale to
            // final int REQUIRED_SIZE =  size;

            // Find the correct scale value. It should be the power of 2.
            int width_tmp = o.outWidth, height_tmp = o.outHeight;
            int scale = 1;
            while (true) {
                if (width_tmp / 2 < REQUIRED_SIZE
                        || height_tmp / 2 < REQUIRED_SIZE) {
                    break;
                }
                width_tmp /= 2;
                height_tmp /= 2;
                scale *= 2;
            }
            BitmapFactory.Options o2 = new BitmapFactory.Options();
            o2.inSampleSize = scale;
            return BitmapFactory.decodeStream(getContentResolver().openInputStream(selectedImage), null, o2);
        }
        catch (Exception e){
            e.printStackTrace();
        }
        return null;
    }
    @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR1)
    private byte[] profileImage(Bitmap b){

        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        b.compress(Bitmap.CompressFormat.JPEG, 0, bos);
        return bos.toByteArray();

    }

    private void getValues(){
        fpseudo = editpseudo.getText().toString().trim();
                fnom=editnom.getText().toString().trim();
                fphone=editphone.getText().toString().trim();
                fdob=editdob.getText().toString().trim();
                fville=editville.getText().toString().trim();
                fsexe=editsexe.getText().toString().trim();
                fgroupe=editgroupe.getText().toString().trim();
                fdatedon=editdatedon.getText().toString().trim();
                     photo = profileImage(bp);
    }


    //Insert data to the database
    private void addContact(){
        getValues();

        db.addContacts(new Contact(fpseudo,fnom,fphone,fdob,fville,fsexe,fgroupe,fdatedon,photo));
        Toast.makeText(getApplicationContext(),"Saved successfully", Toast.LENGTH_LONG).show();

}