How to use

getMessageDigest

method

in

com.android.apksig.DefaultApkSignerEngine$GetJarEntryDataDigestRequest

@Override
public void done() {
  synchronized (mLock) {
    if (mDone) {
      return;
    }
    mDone = true;
    mDigest = getMessageDigest().digest();
    mMessageDigest = null;
    mDataSink = null;
  }
}

@Override
public DataSink getDataSink() {
  synchronized (mLock) {
    checkNotDone();
    if (mDataSink == null) {
      mDataSink = new MessageDigestSink(new MessageDigest[] {getMessageDigest()});
    }
    return mDataSink;
  }
}