Many exceptions occur in SSRF.fromXml()

[hosokawatakeshi]

I'm evaluating the openssrf.
My code is below.

public class Test extends HttpServlet {
    private static final long serialVersionUID = 1L;
 
    public void doGet(HttpServletRequest req, HttpServletResponse res)
    throws ServletException, IOException {
    PrintWriter out;
    SSRF ssrf = new SSRF()
      .withProperty("cls", "UNCLASSIFIED")
      .withContact(new Contact()
      .withEMail(new EMail()
      .withAddress("john.doe@internet.com"))
      .withLastName("Doe")
      .withFirstName("John")
      .withTelephoneFax(new TelephoneFax()
      .withNumber("(123)456.7890")));
    res.setContentType("text/html; charset=utf-8");
    out = res.getWriter();
    out.println("<html><body>");
    String xml;
    try {
      xml = ssrf.toXML();
      System.out.println(xml);
      SSRF ssrf2 = SSRF.fromXml(xml);
    } catch (Exception e) {
      e.printStackTrace();
    }
    out.println("</body></html>");
  }
}

The results are as follows.
toXML() is good, but fromXml is bad.
How should I resolve the following exception?

[apache-tomcat-8.5.71-2]: <?xml version="1.0" encoding="UTF-8"?>
<s:SSRF xmlns:s="urn:us:gov:dod:standard:ssrf:3.1.0" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
   <s:Contact cls="U">
      <s:Serial cls="U">USA::CN:9af76d4e9d2449</s:Serial>
      <s:EntryDateTime cls="U">2021-09-27T01:23:34.020Z</s:EntryDateTime>
      <s:FirstName cls="U">John</s:FirstName>
      <s:LastName cls="U">Doe</s:LastName>
      <s:TelephoneFax>
         <s:Number cls="U">(123)456.7890</s:Number>
      </s:TelephoneFax>
      <s:EMail>
         <s:Address cls="U">john.doe@internet.com</s:Address>
      </s:EMail>
   </s:Contact>
</s:SSRF>

[apache-tomcat-8.5.71-2]: com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationsException: 132 counts of IllegalAnnotationExceptions
@XmlValue is not allowed on a class that derives another class.
	this problem is related to the following location:
		at protected java.util.Calendar us.gov.dod.standard.ssrf._3_1.metadata.domains.D.value
		at us.gov.dod.standard.ssrf._3_1.metadata.domains.D
		at private us.gov.dod.standard.ssrf._3_1.metadata.domains.D us.gov.dod.standard.ssrf._3_1.Contact.effectiveDate
		at us.gov.dod.standard.ssrf._3_1.Contact
		at protected java.util.Set us.gov.dod.standard.ssrf._3_1.SchemaRoot.contact
		at us.gov.dod.standard.ssrf._3_1.SchemaRoot
		at us.gov.dod.standard.ssrf.SSRF
@XmlValue is not allowed on a class that derives another class.
	this problem is related to the following location:
		at protected java.lang.String us.gov.dod.standard.ssrf._3_1.metadata.domains.S10.value
		at us.gov.dod.standard.ssrf._3_1.metadata.domains.S10
		at private us.gov.dod.standard.ssrf._3_1.metadata.domains.S10 us.gov.dod.standard.ssrf._3_1.Contact.titleRank
		at us.gov.dod.standard.ssrf._3_1.Contact
		at protected java.util.Set us.gov.dod.standard.ssrf._3_1.SchemaRoot.contact
		at us.gov.dod.standard.ssrf._3_1.SchemaRoot
		at us.gov.dod.standard.ssrf.SSRF
...

[hosokawatakeshi]

I was able to fix it with the following code.
Please could you confirm?

diff --git a/src/main/java/us/gov/dod/standard/ssrf/_3_1/metadata/AMetadata.java b/src/main/java/us/gov/dod/standard/ssrf/_3_1/metadata/AMetadata.java
index c0e7dfe..e98a96f 100644
--- a/src/main/java/us/gov/dod/standard/ssrf/_3_1/metadata/AMetadata.java
+++ b/src/main/java/us/gov/dod/standard/ssrf/_3_1/metadata/AMetadata.java
@@ -65,6 +65,7 @@ import us.gov.dod.standard.ssrf._3_1.metadata.lists.ListCCL;
 @XmlAccessorType(XmlAccessType.FIELD)
 @XmlType(name = "AMetadata", propOrder = {"cls"})
 @SuppressWarnings("unchecked")
+@javax.xml.bind.annotation.XmlTransient
 public abstract class AMetadata<T> {
 
   /**