Program: 14198
Project: 14198
Buggy source:
private String getXmlrpcByUserEnteredPath(String baseUrl){
  String xmlRpcUrl;
  if (!UrlUtils.isValidUrlAndHostNotNull(baseUrl)) {
    AppLog.e(T.NUX,"String_Node_Str" + baseUrl);
    mErrorMsgId=org.wordpress.android.R.string.invalid_url_message;
    return null;
  }
  URI uri=URI.create(baseUrl);
  XMLRPCClientInterface client=XMLRPCFactory.instantiate(uri,mHttpUsername,mHttpPassword);
  try {
    client.call(ApiHelper.Methods.LIST_METHODS);
    xmlRpcUrl=baseUrl;
    return xmlRpcUrl;
  }
 catch (  XMLRPCException e) {
    AppLog.i(T.NUX,"String_Node_Str" + baseUrl);
    if (isHTTPAuthErrorMessage(e)) {
      return null;
    }
  }
catch (  SSLHandshakeException e) {
    if (!WPUrlUtils.isWordPressCom(baseUrl)) {
      mErroneousSslCertificate=true;
    }
    AppLog.w(T.NUX,"String_Node_Str");
    return null;
  }
catch (  SSLPeerUnverifiedException e) {
    if (!WPUrlUtils.isWordPressCom(baseUrl)) {
      mErroneousSslCertificate=true;
    }
    AppLog.w(T.NUX,"String_Node_Str");
    return null;
  }
catch (  IOException e) {
    AppLog.i(T.NUX,"String_Node_Str" + baseUrl);
    if (isHTTPAuthErrorMessage(e)) {
      return null;
    }
  }
catch (  XmlPullParserException e) {
    AppLog.i(T.NUX,"String_Node_Str" + baseUrl);
    if (isHTTPAuthErrorMessage(e)) {
      return null;
    }
  }
catch (  IllegalArgumentException e) {
    CrashlyticsUtils.setString(ExtraKey.ENTERED_URL,baseUrl);
    CrashlyticsUtils.logException(e,ExceptionType.SPECIFIC,T.NUX);
    mErrorMsgId=org.wordpress.android.R.string.invalid_url_message;
    return null;
  }
  String guessURL=baseUrl;
  if (guessURL.substring(guessURL.length() - 1,guessURL.length()).equals("String_Node_Str")) {
    guessURL=guessURL.substring(0,guessURL.length() - 1);
  }
  guessURL+="String_Node_Str";
  uri=URI.create(guessURL);
  client=XMLRPCFactory.instantiate(uri,mHttpUsername,mHttpPassword);
  try {
    client.call(ApiHelper.Methods.LIST_METHODS);
    xmlRpcUrl=guessURL;
    return xmlRpcUrl;
  }
 catch (  XMLRPCException e) {
    AnalyticsTracker.track(Stat.LOGIN_FAILED_TO_GUESS_XMLRPC);
    AppLog.e(T.NUX,"String_Node_Str" + guessURL,e);
  }
catch (  SSLHandshakeException e) {
    if (!WPUrlUtils.isWordPressCom(baseUrl)) {
      mErroneousSslCertificate=true;
    }
    AppLog.w(T.NUX,"String_Node_Str");
    return null;
  }
catch (  SSLPeerUnverifiedException e) {
    if (!WPUrlUtils.isWordPressCom(baseUrl)) {
      mErroneousSslCertificate=true;
    }
    AppLog.w(T.NUX,"String_Node_Str");
    return null;
  }
catch (  IOException e) {
    AnalyticsTracker.track(Stat.LOGIN_FAILED_TO_GUESS_XMLRPC);
    AppLog.e(T.NUX,"String_Node_Str" + guessURL,e);
  }
catch (  XmlPullParserException e) {
    AnalyticsTracker.track(Stat.LOGIN_FAILED_TO_GUESS_XMLRPC);
    AppLog.e(T.NUX,"String_Node_Str" + guessURL,e);
  }
  return null;
}

Fixed version (ground truth):
private String getXmlrpcByUserEnteredPath(String baseUrl){
  String xmlRpcUrl;
  if (!UrlUtils.isValidUrlAndHostNotNull(baseUrl)) {
    AppLog.e(T.NUX,"String_Node_Str" + baseUrl);
    mErrorMsgId=org.wordpress.android.R.string.invalid_url_message;
    return null;
  }
  URI uri=URI.create(baseUrl);
  XMLRPCClientInterface client=XMLRPCFactory.instantiate(uri,mHttpUsername,mHttpPassword);
  try {
    client.call(Method.LIST_METHODS);
    xmlRpcUrl=baseUrl;
    return xmlRpcUrl;
  }
 catch (  XMLRPCException e) {
    AppLog.i(T.NUX,"String_Node_Str" + baseUrl);
    if (isHTTPAuthErrorMessage(e)) {
      return null;
    }
  }
catch (  SSLHandshakeException e) {
    if (!WPUrlUtils.isWordPressCom(baseUrl)) {
      mErroneousSslCertificate=true;
    }
    AppLog.w(T.NUX,"String_Node_Str");
    return null;
  }
catch (  SSLPeerUnverifiedException e) {
    if (!WPUrlUtils.isWordPressCom(baseUrl)) {
      mErroneousSslCertificate=true;
    }
    AppLog.w(T.NUX,"String_Node_Str");
    return null;
  }
catch (  IOException e) {
    AppLog.i(T.NUX,"String_Node_Str" + baseUrl);
    if (isHTTPAuthErrorMessage(e)) {
      return null;
    }
  }
catch (  XmlPullParserException e) {
    AppLog.i(T.NUX,"String_Node_Str" + baseUrl);
    if (isHTTPAuthErrorMessage(e)) {
      return null;
    }
  }
catch (  IllegalArgumentException e) {
    CrashlyticsUtils.setString(ExtraKey.ENTERED_URL,baseUrl);
    CrashlyticsUtils.logException(e,ExceptionType.SPECIFIC,T.NUX);
    mErrorMsgId=org.wordpress.android.R.string.invalid_url_message;
    return null;
  }
  String guessURL=baseUrl;
  if (guessURL.substring(guessURL.length() - 1,guessURL.length()).equals("String_Node_Str")) {
    guessURL=guessURL.substring(0,guessURL.length() - 1);
  }
  guessURL+="String_Node_Str";
  uri=URI.create(guessURL);
  client=XMLRPCFactory.instantiate(uri,mHttpUsername,mHttpPassword);
  try {
    client.call(Method.LIST_METHODS);
    xmlRpcUrl=guessURL;
    return xmlRpcUrl;
  }
 catch (  XMLRPCException e) {
    AnalyticsTracker.track(Stat.LOGIN_FAILED_TO_GUESS_XMLRPC);
    AppLog.e(T.NUX,"String_Node_Str" + guessURL,e);
  }
catch (  SSLHandshakeException e) {
    if (!WPUrlUtils.isWordPressCom(baseUrl)) {
      mErroneousSslCertificate=true;
    }
    AppLog.w(T.NUX,"String_Node_Str");
    return null;
  }
catch (  SSLPeerUnverifiedException e) {
    if (!WPUrlUtils.isWordPressCom(baseUrl)) {
      mErroneousSslCertificate=true;
    }
    AppLog.w(T.NUX,"String_Node_Str");
    return null;
  }
catch (  IOException e) {
    AnalyticsTracker.track(Stat.LOGIN_FAILED_TO_GUESS_XMLRPC);
    AppLog.e(T.NUX,"String_Node_Str" + guessURL,e);
  }
catch (  XmlPullParserException e) {
    AnalyticsTracker.track(Stat.LOGIN_FAILED_TO_GUESS_XMLRPC);
    AppLog.e(T.NUX,"String_Node_Str" + guessURL,e);
  }
  return null;
}