[Demonstration 1]

[Buggy Method]
public void onClickColorPickerDialog(MenuItem item) {
    // The color picker menu item has been clicked. Show
    // a dialog using the custom ColorPickerDialogFragment class.
    ColorPickerDialogFragment f = ColorPickerDialogFragment.newInstance(DIALOG_ID, null, null, -1, true);
    f.setStyle(DialogFragment.STYLE_NORMAL, R.style.LightPickerDialogTheme);
    f.show(getFragmentManager(), "d");
}

[Buggy Hunk]
.newInstance(DIALOG_ID, null, null, -1, true);

[Patch]
.newInstance(DIALOG_ID, null, null, Color.BLACK, true);

[Demonstration 2]

[Buggy Method]
private void showRetryDialog(String title, String text, RetryDialog.RetryDialogListener listener) {
    RetryDialog dialog = (RetryDialog) getFragmentManager().findFragmentByTag("retry_dialog");
    if (dialog == null) {
        RetryDialog.newInstance(title, text);
    }
    dialog.setRetryDialogListener(listener);
    dialog.show(getFragmentManager(), "retry_dialog");
}

[Buggy Hunk]
RetryDialog.newInstance(title, text);

[Patch]
dialog = RetryDialog.newInstance(title, text);

[Demonstration 3]

[Buggy Method]
@Override
public void onClick(View v) {
    CustomDialog dialog = new CustomDialog();
    dialog.setTargetFragment(FolderFragment.this, 0);
    dialog.show(getActivity().getFragmentManager(), "show");
}

[Buggy Hunk]
dialog.show(getActivity().getFragmentManager(), "show");

[Patch]
dialog.show(getActivity().getSupportFragmentManager(), "show");