jill/src/main/java/io/github/agentsoz/jill/struct/GoalPlanType.java
public byte[] getParents() {
    if (parents == null) {
      return null;
    }
    byte[] arr = new byte[parents.length];
    System.arraycopy(parents, 0, arr, 0, arr.length);
    return arr;
  }
public byte[] getParents() {
    if (parents == null) {
      return null;
    }
    byte[] arr = new byte[parents.length];
    System.arraycopy(parents, 0, arr, 0, arr.length);
    return arr;
  }
Gets the parents of this object in the Goal-Plan tree.

@return array of parent IDs, or null if this object has no parents