private static void configureInternal() throws IOException {
System.setProperty("openjpa.Log", "log4j");
SystemInstance system = SystemInstance.get();
FileUtils base = system.getBase();
File confDir = base.getDirectory("conf");
File loggingPropertiesFile = new File(confDir, LOGGING_PROPERTIES_FILE);
if (confDir.exists()) {
if (loggingPropertiesFile.exists()) {
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(loggingPropertiesFile));
Properties props = new Properties();