Program: 30460
Project: 30460
Buggy source:
private void deleteServerFromLBConfig(String configName,String serverName){
  LbConfig lbConfig=lbconfigs.getLbConfig(configName);
  ServerRef sRef=lbConfig.getRefByRef(ServerRef.class,serverName);
  if (sRef == null) {
    String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",target);
    logger.finest("String_Node_Str" + serverName + "String_Node_Str");
    report.setActionExitCode(ActionReport.ExitCode.FAILURE);
    report.setMessage(msg);
    return;
  }
  if (!Boolean.parseBoolean(force)) {
    if (Boolean.parseBoolean(sRef.getLbEnabled())) {
      String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",serverName);
      report.setActionExitCode(ActionReport.ExitCode.FAILURE);
      report.setMessage(msg);
      return;
    }
    Server s=domain.getServerNamed(serverName);
    if (s == null) {
      String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",target);
      report.setActionExitCode(ActionReport.ExitCode.FAILURE);
      report.setMessage(msg);
      return;
    }
    List<ApplicationRef> appRefs=domain.getApplicationRefsInTarget(target);
    if (appRefs == null || appRefs.size() == 0) {
      String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",target);
      report.setActionExitCode(ActionReport.ExitCode.FAILURE);
      report.setMessage(msg);
      return;
    }
    boolean appLbEnabled=false;
    for (    ApplicationRef aRef : appRefs) {
      if (Boolean.parseBoolean(aRef.getLbEnabled())) {
        appLbEnabled=true;
        break;
      }
    }
    if (appLbEnabled) {
      String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str");
      report.setActionExitCode(ActionReport.ExitCode.FAILURE);
      report.setMessage(msg);
      return;
    }
  }
  removeServerRef(lbConfig,sRef);
}

Fixed version (ground truth):
private void deleteServerFromLBConfig(String configName,String serverName){
  LbConfig lbConfig=lbconfigs.getLbConfig(configName);
  ServerRef sRef=lbConfig.getRefByRef(ServerRef.class,serverName);
  if (sRef == null) {
    String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",target);
    logger.finest("String_Node_Str" + serverName + "String_Node_Str");
    report.setActionExitCode(ActionReport.ExitCode.FAILURE);
    report.setMessage(msg);
    return;
  }
  if (!Boolean.parseBoolean(force)) {
    if (Boolean.parseBoolean(sRef.getLbEnabled())) {
      String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",serverName);
      report.setActionExitCode(ActionReport.ExitCode.FAILURE);
      report.setMessage(msg);
      return;
    }
    Server s=domain.getServerNamed(serverName);
    if (s == null) {
      String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",target);
      report.setActionExitCode(ActionReport.ExitCode.FAILURE);
      report.setMessage(msg);
      return;
    }
    List<ApplicationRef> appRefs=domain.getApplicationRefsInTarget(target);
    if (appRefs == null || appRefs.isEmpty()) {
      String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",target);
      report.setActionExitCode(ActionReport.ExitCode.FAILURE);
      report.setMessage(msg);
      return;
    }
    boolean appLbEnabled=false;
    for (    ApplicationRef aRef : appRefs) {
      if (Boolean.parseBoolean(aRef.getLbEnabled())) {
        appLbEnabled=true;
        break;
      }
    }
    if (appLbEnabled) {
      String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str");
      report.setActionExitCode(ActionReport.ExitCode.FAILURE);
      report.setMessage(msg);
      return;
    }
  }
  removeServerRef(lbConfig,sRef);
}