/**
     * Deletes the specified temporary directory.
     * Logs a warning if the directory cannot be deleted.
     *
     * @param ownTmpDir the temporary directory to delete
     */
    protected void deleteTempDir(final File ownTmpDir) {
        if (ownTmpDir == null) {
            return;
        }
        if (!FileUtils.deleteQuietly(ownTmpDir)) {

            super.addFessCustomSystemProperties(cmdList, regex);
        }

        public void testDeleteTempDir(File ownTmpDir) {
            super.deleteTempDir(ownTmpDir);
        }

        public void testAppendJarFile(String cpSeparator, StringBuilder buf, File libDir, String basePath) {
            super.appendJarFile(cpSeparator, buf, libDir, basePath);
        }

            } finally {
                if (propFile != null && !propFile.delete()) {
                    logger.warn("Failed to delete {}.", propFile.getAbsolutePath());
                }
                deleteTempDir(ownTmpDir);
            }
        }
    }

    @Override
    protected String getExecuteType() {
        return Constants.EXECUTE_TYPE_SUGGEST;
    }

            } finally {
                if (propFile != null && !propFile.delete()) {
                    logger.warn("Failed to delete {}.", propFile.getAbsolutePath());
                }
                deleteTempDir(ownTmpDir);
            }
        }
    }

    @Override
    protected String getExecuteType() {
        return Constants.EXECUTE_TYPE_THUMBNAIL;
    }

            } finally {
                if (propFile != null && !propFile.delete()) {
                    logger.warn("Failed to delete {}.", propFile.getAbsolutePath());
                }
                deleteTempDir(ownTmpDir);
            }
        }
    }

    @Override
    protected String getExecuteType() {
        return Constants.EXECUTE_TYPE_CRAWLER;
    }