How to use

collectJars

method

in

net.java.btrace.api.extensions.ExtensionsRepository

private List<File> getExtensionFiles() {
  extensionJarsLock.readLock().lock();
  List<File> jars = extensionJarsRef.get();
  if (jars == null) {
    try {
      extensionJarsLock.readLock().unlock();
      extensionJarsLock.writeLock().lock();
      jars = extensionJarsRef.get();
      if (jars == null) {
        jars = new ArrayList<File>();
        String extPath = getExtensionsPath();
        if (extPath != null) {
          StringTokenizer st = new StringTokenizer(extPath, File.pathSeparator);
          while (st.hasMoreTokens()) {
            collectJars(new File(st.nextToken()), jars);
          }
        }
        extensionJarsRef.set(jars);
        return jars;
      }
    } finally {
      extensionJarsLock.writeLock().unlock();
    }
  } else {
    extensionJarsLock.readLock().unlock();
  }
  return jars;
}

private List<File> getExtensionFiles() {
  extensionJarsLock.readLock().lock();
  List<File> jars = extensionJarsRef.get();
  if (jars == null) {
    try {
      extensionJarsLock.readLock().unlock();
      extensionJarsLock.writeLock().lock();
      jars = extensionJarsRef.get();
      if (jars == null) {
        jars = new ArrayList<File>();
        String extPath = getExtensionsPath();
        if (extPath != null) {
          StringTokenizer st = new StringTokenizer(extPath, File.pathSeparator);
          while (st.hasMoreTokens()) {
            collectJars(new File(st.nextToken()), jars);
          }
        }
        extensionJarsRef.set(jars);
        return jars;
      }
    } finally {
      extensionJarsLock.writeLock().unlock();
    }
  } else {
    extensionJarsLock.readLock().unlock();
  }
  return jars;
}

if (files != null) {
  for(File f : files) {
    collectJars(f, jars);

if (files != null) {
  for(File f : files) {
    collectJars(f, jars);