Program: 88459
Project: 88459
Buggy source:
public String commitAction(){
  URIBuilder requestUri=MMSUtils.getServiceOrgsUri(project);
  if (requestUri == null) {
    return null;
  }
  JFrame selectionDialog=new JFrame();
  String org=JOptionPane.showInputDialog(selectionDialog,"String_Node_Str");
  if (org == null) {
    Application.getInstance().getGUILog().log("String_Node_Str");
    return null;
  }
  if (org.isEmpty()) {
    Application.getInstance().getGUILog().log("String_Node_Str");
    return null;
  }
  File responseFile;
  try {
    responseFile=MMSUtils.sendMMSRequest(project,MMSUtils.buildRequest(MMSUtils.HttpRequestType.GET,requestUri));
    try (JsonParser responseParser=JacksonUtils.getJsonFactory().createParser(responseFile)){
      ObjectNode response=JacksonUtils.parseJsonObject(responseParser);
      JsonNode arrayNode;
      if (response != null && (arrayNode=response.get("String_Node_Str")) != null && arrayNode.isArray()) {
        for (        JsonNode orgNode : arrayNode) {
          JsonNode value;
          if ((value=orgNode.get(MDKConstants.ID_KEY)) != null && value.isTextual()) {
            if (value.asText().equals(org)) {
              Application.getInstance().getGUILog().log("String_Node_Str");
              return org;
            }
          }
        }
      }
    }
   }
 catch (  IOException|URISyntaxException|ServerException e) {
    Application.getInstance().getGUILog().log("String_Node_Str" + e.getMessage());
    e.printStackTrace();
    return null;
  }
  LinkedList<ObjectNode> orgs=new LinkedList<>();
  ObjectNode orgNode=JacksonUtils.getObjectMapper().createObjectNode();
  orgNode.put(MDKConstants.ID_KEY,org);
  orgNode.put(MDKConstants.NAME_KEY,org);
  orgs.add(orgNode);
  try {
    File sendData=MMSUtils.createEntityFile(this.getClass(),ContentType.APPLICATION_JSON,orgs,MMSUtils.JsonBlobType.ORG);
    responseFile=MMSUtils.sendMMSRequest(project,MMSUtils.buildRequest(MMSUtils.HttpRequestType.POST,requestUri,sendData,ContentType.APPLICATION_JSON));
  }
 catch (  IOException|ServerException|URISyntaxException e) {
    Application.getInstance().getGUILog().log("String_Node_Str" + e.getMessage());
    e.printStackTrace();
    return null;
  }
  return org;
}

Fixed version (ground truth):
public String commitAction(){
  URIBuilder requestUri=MMSUtils.getServiceOrgsUri(project);
  if (requestUri == null) {
    return null;
  }
  JFrame selectionDialog=new JFrame();
  String org=JOptionPane.showInputDialog(selectionDialog,"String_Node_Str");
  if (org == null) {
    Application.getInstance().getGUILog().log("String_Node_Str");
    return null;
  }
  if (org.isEmpty()) {
    Application.getInstance().getGUILog().log("String_Node_Str");
    return null;
  }
  String orgId=org.toLowerCase().replaceAll("String_Node_Str","String_Node_Str").replaceAll("String_Node_Str","String_Node_Str");
  if (orgId.isEmpty() || orgId.matches("String_Node_Str")) {
    Application.getInstance().getGUILog().log("String_Node_Str" + org + "String_Node_Str");
    return null;
  }
  File responseFile;
  try {
    responseFile=MMSUtils.sendMMSRequest(project,MMSUtils.buildRequest(MMSUtils.HttpRequestType.GET,requestUri));
    try (JsonParser responseParser=JacksonUtils.getJsonFactory().createParser(responseFile)){
      ObjectNode response=JacksonUtils.parseJsonObject(responseParser);
      JsonNode arrayNode;
      if (response != null && (arrayNode=response.get("String_Node_Str")) != null && arrayNode.isArray()) {
        for (        JsonNode orgNode : arrayNode) {
          JsonNode name, id;
          if ((name=orgNode.get(MDKConstants.NAME_KEY)) != null && name.isTextual() && (id=orgNode.get(MDKConstants.ID_KEY)) != null && id.isTextual()) {
            if (name.asText().equals(org)) {
              Application.getInstance().getGUILog().log("String_Node_Str" + org + "String_Node_Str");
              return id.asText();
            }
            if (id.asText().equals(orgId)) {
              Application.getInstance().getGUILog().log("String_Node_Str" + orgId + "String_Node_Str");
              return id.asText();
            }
          }
        }
      }
    }
   }
 catch (  IOException|URISyntaxException|ServerException e) {
    Application.getInstance().getGUILog().log("String_Node_Str" + e.getMessage());
    e.printStackTrace();
    return null;
  }
  LinkedList<ObjectNode> orgs=new LinkedList<>();
  ObjectNode orgNode=JacksonUtils.getObjectMapper().createObjectNode();
  orgNode.put(MDKConstants.ID_KEY,orgId);
  orgNode.put(MDKConstants.NAME_KEY,org);
  orgs.add(orgNode);
  try {
    File sendData=MMSUtils.createEntityFile(this.getClass(),ContentType.APPLICATION_JSON,orgs,MMSUtils.JsonBlobType.ORG);
    responseFile=MMSUtils.sendMMSRequest(project,MMSUtils.buildRequest(MMSUtils.HttpRequestType.POST,requestUri,sendData,ContentType.APPLICATION_JSON));
  }
 catch (  IOException|ServerException|URISyntaxException e) {
    Application.getInstance().getGUILog().log("String_Node_Str" + e.getMessage());
    e.printStackTrace();
    return null;
  }
  return orgId;
}