Program: 28266
Project: 28266
Buggy source:
/** 
 * Deletes a health checker from a load balancer configuration.
 * @param lbConfig        Http load balancer configuration bean
 * @param target          Name of a cluster or stand alone server instance
 * @param ignoreFailure   if ignoreError is true, exceptions are notthrown in the following cases 1). The specified server instance or cluster does not exist in the LB config. 2).The target already contains the health checker
 */
private void deleteHealthCheckerInternal(LbConfig lbConfig,String target,boolean ignoreFailure){
  if (lbConfig == null) {
    String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str");
    report.setActionExitCode(ActionReport.ExitCode.FAILURE);
    report.setMessage(msg);
    return;
  }
  String lbConfigName=lbConfig.getName();
  logger.fine("String_Node_Str" + lbConfigName + "String_Node_Str"+ target);
  if (target == null) {
    String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str");
    report.setActionExitCode(ActionReport.ExitCode.FAILURE);
    report.setMessage(msg);
    return;
  }
  if (tgt.isCluster(target)) {
    ClusterRef cRef=lbConfig.getRefByRef(ClusterRef.class,target);
    if ((cRef == null) && (ignoreFailure == false)) {
      String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",lbConfigName,target);
      report.setActionExitCode(ActionReport.ExitCode.FAILURE);
      report.setMessage(msg);
      return;
    }
    if (cRef != null) {
      HealthChecker hc=cRef.getHealthChecker();
      if (hc != null) {
        removeHealthCheckerFromClusterRef(cRef);
        String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",target);
        logger.info(msg);
      }
 else {
        if (ignoreFailure == false) {
          String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",target,lbConfigName);
          report.setActionExitCode(ActionReport.ExitCode.FAILURE);
          report.setMessage(msg);
          return;
        }
      }
    }
  }
 else   if (domain.isServer(target)) {
    ServerRef sRef=lbConfig.getRefByRef(ServerRef.class,target);
    if ((sRef == null) && (ignoreFailure == false)) {
      String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",lbConfigName,target);
      report.setActionExitCode(ActionReport.ExitCode.FAILURE);
      report.setMessage(msg);
      return;
    }
    if (sRef != null) {
      HealthChecker hc=sRef.getHealthChecker();
      if (hc != null) {
        removeHealthCheckerFromServerRef(sRef);
        String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",target);
        logger.info(msg);
      }
 else {
        if (ignoreFailure == false) {
          String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",target,lbConfigName);
          report.setActionExitCode(ActionReport.ExitCode.FAILURE);
          report.setMessage(msg);
          return;
        }
      }
    }
  }
 else {
    String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",target);
    report.setActionExitCode(ActionReport.ExitCode.FAILURE);
    report.setMessage(msg);
    return;
  }
}

Fixed version (ground truth):
/** 
 * Deletes a health checker from a load balancer configuration.
 * @param lbConfig        Http load balancer configuration bean
 * @param target          Name of a cluster or stand alone server instance
 * @param ignoreFailure   if ignoreError is true, exceptions are notthrown in the following cases 1). The specified server instance or cluster does not exist in the LB config. 2).The target already contains the health checker
 */
private void deleteHealthCheckerInternal(LbConfig lbConfig,String target,boolean ignoreFailure){
  if (lbConfig == null) {
    String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str");
    report.setActionExitCode(ActionReport.ExitCode.FAILURE);
    report.setMessage(msg);
    return;
  }
  String lbConfigName=lbConfig.getName();
  if (logger.isLoggable(Level.FINE)) {
    logger.fine("String_Node_Str" + lbConfigName + "String_Node_Str"+ target);
  }
  if (target == null) {
    String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str");
    report.setActionExitCode(ActionReport.ExitCode.FAILURE);
    report.setMessage(msg);
    return;
  }
  if (tgt.isCluster(target)) {
    ClusterRef cRef=lbConfig.getRefByRef(ClusterRef.class,target);
    if ((cRef == null) && (ignoreFailure == false)) {
      String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",lbConfigName,target);
      report.setActionExitCode(ActionReport.ExitCode.FAILURE);
      report.setMessage(msg);
      return;
    }
    if (cRef != null) {
      HealthChecker hc=cRef.getHealthChecker();
      if (hc != null) {
        removeHealthCheckerFromClusterRef(cRef);
        String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",target);
        logger.info(msg);
      }
 else {
        if (ignoreFailure == false) {
          String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",target,lbConfigName);
          report.setActionExitCode(ActionReport.ExitCode.FAILURE);
          report.setMessage(msg);
          return;
        }
      }
    }
  }
 else   if (domain.isServer(target)) {
    ServerRef sRef=lbConfig.getRefByRef(ServerRef.class,target);
    if ((sRef == null) && (ignoreFailure == false)) {
      String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",lbConfigName,target);
      report.setActionExitCode(ActionReport.ExitCode.FAILURE);
      report.setMessage(msg);
      return;
    }
    if (sRef != null) {
      HealthChecker hc=sRef.getHealthChecker();
      if (hc != null) {
        removeHealthCheckerFromServerRef(sRef);
        String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",target);
        logger.info(msg);
      }
 else {
        if (ignoreFailure == false) {
          String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",target,lbConfigName);
          report.setActionExitCode(ActionReport.ExitCode.FAILURE);
          report.setMessage(msg);
          return;
        }
      }
    }
  }
 else {
    String msg=localStrings.getLocalString("String_Node_Str","String_Node_Str",target);
    report.setActionExitCode(ActionReport.ExitCode.FAILURE);
    report.setMessage(msg);
    return;
  }
}