Program: 88556
Project: 88556
Buggy source:
public void validate(){
  Project project=Application.getInstance().getProject();
  URIBuilder requestUri=MMSUtils.getServiceProjectsUri(project);
  if (requestUri == null) {
    Application.getInstance().getGUILog().log("String_Node_Str");
    return;
  }
  requestUri.setPath(requestUri.getPath() + "String_Node_Str" + Converters.getProjectToIdConverter().apply(project));
  ObjectNode response;
  try {
    response=JacksonUtils.parseJsonObject(MMSUtils.sendMMSRequest(project,MMSUtils.buildRequest(MMSUtils.HttpRequestType.GET,requestUri)));
  }
 catch (  IOException|ServerException|URISyntaxException e) {
    e.printStackTrace();
    Application.getInstance().getGUILog().log("String_Node_Str" + e.getMessage());
    return;
  }
  JsonNode projectsJson;
  if ((projectsJson=response.get("String_Node_Str")) != null && projectsJson.isArray()) {
    JsonNode value;
    for (    JsonNode projectJson : projectsJson) {
      if ((value=projectJson.get(MDKConstants.ID_KEY)) != null && value.isTextual() && value.asText().equals(Converters.getIProjectToIdConverter().apply(project.getPrimaryProject()))) {
        return;
      }
    }
  }
  ValidationRuleViolation v;
  if (!project.isRemote() || EsiUtils.getCurrentBranch(project.getPrimaryProject()).getName().equals("String_Node_Str")) {
    v=new ValidationRuleViolation(project.getPrimaryModel(),"String_Node_Str");
    v.addAction(new CommitProjectAction(project,true));
  }
 else {
    v=new ValidationRuleViolation(project.getPrimaryModel(),"String_Node_Str");
  }
  projectExistenceValidationRule.addViolation(v);
}

Fixed version (ground truth):
public void validate(){
  URIBuilder requestUri=MMSUtils.getServiceProjectsUri(project);
  if (requestUri == null) {
    Application.getInstance().getGUILog().log("String_Node_Str");
    errors=true;
    return;
  }
  requestUri.setPath(requestUri.getPath() + "String_Node_Str" + Converters.getProjectToIdConverter().apply(project));
  ObjectNode response;
  try {
    response=JacksonUtils.parseJsonObject(MMSUtils.sendMMSRequest(project,MMSUtils.buildRequest(MMSUtils.HttpRequestType.GET,requestUri)));
  }
 catch (  IOException|ServerException|URISyntaxException e) {
    errors=true;
    e.printStackTrace();
    Application.getInstance().getGUILog().log("String_Node_Str" + e.getMessage());
    return;
  }
  JsonNode projectsJson;
  if ((projectsJson=response.get("String_Node_Str")) != null && projectsJson.isArray()) {
    JsonNode value;
    for (    JsonNode projectJson : projectsJson) {
      if ((value=projectJson.get(MDKConstants.ID_KEY)) != null && value.isTextual() && value.asText().equals(Converters.getIProjectToIdConverter().apply(project.getPrimaryProject()))) {
        return;
      }
    }
  }
  ValidationRuleViolation v;
  if (!project.isRemote() || EsiUtils.getCurrentBranch(project.getPrimaryProject()).getName().equals("String_Node_Str")) {
    v=new ValidationRuleViolation(project.getPrimaryModel(),"String_Node_Str");
    v.addAction(new CommitProjectAction(project,true));
  }
 else {
    v=new ValidationRuleViolation(project.getPrimaryModel(),"String_Node_Str");
  }
  projectExistenceValidationRule.addViolation(v);
}