Program: 33998
Project: 33998
Buggy source:
@Override public void onCreate(Bundle savedInstanceState){
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_manage_account);
  setUpDefaultToolbar();
  progressDialog=new CustomProgressDialog(ManageAccountsActivity.this);
  ListView listview=(ListView)findViewById(R.id.email_list);
  if (AppData.defaultUser != null) {
    oldDefaultUser=AppData.defaultUser.getUsername();
  }
  showAllAccounts();
  listview.setOnItemClickListener(new OnItemClickListener(){
    @Override public void onItemClick(    AdapterView<?> parent,    View view,    int position,    long id){
      ListView listview=(ListView)findViewById(R.id.email_list);
      final AppUser user=(AppUser)listview.getItemAtPosition(position);
      if (user.getId() < 0) {
        startActivity(new Intent(ManageAccountsActivity.this,OnBoardingActivity.class));
        return;
      }
      final View optionListView=getLayoutInflater().inflate(R.layout.dialog_manage_account_options,null);
      final AlertDialog dialog=CustomedDialog.getAlertDialogNoTitle(ManageAccountsActivity.this,optionListView);
      dialog.show();
      Button openDefault=(Button)optionListView.findViewById(R.id.btn_open_account);
      Button delete=(Button)optionListView.findViewById(R.id.btn_delete_account);
      openDefault.setOnClickListener(new OnClickListener(){
        @Override public void onClick(        View v){
          new CheckKeyExpirationTaskAccount(user,optionListView,dialog).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
        }
      }
);
      delete.setOnClickListener(new OnClickListener(){
        @Override public void onClick(        View v){
          CustomedDialog.getConfirmRemoveDialog(ManageAccountsActivity.this,new DialogInterface.OnClickListener(){
            @Override public void onClick(            DialogInterface warningDialog,            int which){
              if (AppData.appUsers != null && AppData.appUsers.size() == 2) {
                CamerasActivity.logOutDefaultUser(ManageAccountsActivity.this);
              }
 else {
                new EvercamAccount(ManageAccountsActivity.this).remove(user.getEmail(),new AccountManagerCallback<Boolean>(){
                  @Override public void run(                  AccountManagerFuture<Boolean> future){
                    try {
                      boolean isAccountDeleted=future.getResult();
                      if (isAccountDeleted) {
                        showAllAccounts();
                      }
                    }
 catch (                    OperationCanceledException e) {
                      e.printStackTrace();
                    }
catch (                    IOException e) {
                      e.printStackTrace();
                    }
catch (                    AuthenticatorException e) {
                      e.printStackTrace();
                    }
                  }
                }
);
              }
              dialog.dismiss();
            }
          }
,R.string.msg_confirm_remove).show();
        }
      }
);
    }
  }
);
}

Fixed version (ground truth):
@Override public void onCreate(Bundle savedInstanceState){
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_manage_account);
  setUpDefaultToolbar();
  progressDialog=new CustomProgressDialog(ManageAccountsActivity.this);
  ListView listview=(ListView)findViewById(R.id.email_list);
  if (AppData.defaultUser != null) {
    oldDefaultUser=AppData.defaultUser.getUsername();
  }
  showAllAccounts();
  listview.setOnItemClickListener(new OnItemClickListener(){
    @Override public void onItemClick(    AdapterView<?> parent,    View view,    int position,    long id){
      ListView listview=(ListView)findViewById(R.id.email_list);
      final AppUser user=(AppUser)listview.getItemAtPosition(position);
      if (user.getId() < 0) {
        startActivity(new Intent(ManageAccountsActivity.this,LoginActivity.class));
        return;
      }
      final View optionListView=getLayoutInflater().inflate(R.layout.dialog_manage_account_options,null);
      final AlertDialog dialog=CustomedDialog.getAlertDialogNoTitle(ManageAccountsActivity.this,optionListView);
      dialog.show();
      Button openDefault=(Button)optionListView.findViewById(R.id.btn_open_account);
      Button delete=(Button)optionListView.findViewById(R.id.btn_delete_account);
      openDefault.setOnClickListener(new OnClickListener(){
        @Override public void onClick(        View v){
          new CheckKeyExpirationTaskAccount(user,optionListView,dialog).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
        }
      }
);
      delete.setOnClickListener(new OnClickListener(){
        @Override public void onClick(        View v){
          CustomedDialog.getConfirmRemoveDialog(ManageAccountsActivity.this,new DialogInterface.OnClickListener(){
            @Override public void onClick(            DialogInterface warningDialog,            int which){
              if (AppData.appUsers != null && AppData.appUsers.size() == 2) {
                CamerasActivity.logOutDefaultUser(ManageAccountsActivity.this);
              }
 else {
                new EvercamAccount(ManageAccountsActivity.this).remove(user.getEmail(),new AccountManagerCallback<Boolean>(){
                  @Override public void run(                  AccountManagerFuture<Boolean> future){
                    try {
                      boolean isAccountDeleted=future.getResult();
                      if (isAccountDeleted) {
                        showAllAccounts();
                      }
                    }
 catch (                    OperationCanceledException e) {
                      e.printStackTrace();
                    }
catch (                    IOException e) {
                      e.printStackTrace();
                    }
catch (                    AuthenticatorException e) {
                      e.printStackTrace();
                    }
                  }
                }
);
              }
              dialog.dismiss();
            }
          }
,R.string.msg_confirm_remove).show();
        }
      }
);
    }
  }
);
}