"WEB-INF" + File.separator + "env" + File.separator + getExecuteType() + File.separator + "lib" + File.separator);
        // WEB-INF/plugin
        appendJarFile(cpSeparator, buf, new File(servletContext.getRealPath("/WEB-INF/plugin")),
                "WEB-INF" + File.separator + "plugin" + File.separator);
        final File targetLibDir = new File(targetDir, "fess" + File.separator + "WEB-INF" + File.separator + "lib");