(Java) XMP Array Property - Bag, Seq, or Alt

How to insert or update an XMP array property (bag, seq, or alt).

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // This requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkXmp xmp = new CkXmp();

    // Load a JPG or TIF image file.
    // Sample JPG's with XMP metadata may be found at:
    // http://www.chilkatsoft.com/testData/xmp/sample1.jpg
    // http://www.chilkatsoft.com/testData/xmp/sample2.jpg
    // http://www.chilkatsoft.com/testData/xmp/sample3.jpg
    boolean success = xmp.LoadAppFile("sample1.jpg");
    if (success != true) {
        System.out.println(xmp.lastErrorText());
        return;
        }

    System.out.println("Num embedded XMP docs: " + xmp.get_NumEmbedded());

    // Assuming there is at least one, get the 1st.
    // (There is typically never more than one, but theoretically it's possible.)
    CkXml xml;
    xml = xmp.GetEmbedded(0);
    if (xmp.get_LastMethodSuccess() == true) {

        // Create an object to hold one or more string values.
        CkStringArray sa = new CkStringArray();
        success = sa.Append("value_1");
        success = sa.Append("value_2");
        // ...

        success = xmp.AddArray(xml,"bag","Iptc4xmpCore:Chilkat",sa);
        if (success != true) {
            System.out.println(xmp.lastErrorText());
            }
        else {
            // Save the JPG.
            success = xmp.SaveAppFile("modified.jpg");
            if (success != true) {
                System.out.println(xmp.lastErrorText());
                }

            }

        }
    else {
        System.out.println(xmp.lastErrorText());
        }
  }
}