Update current doc in Java agent

I’m new to Java and I am trying to update several documents from a button on a form.The button is in LScript and calls a Java agent.

I can write and update several other documents, but I cannot write into the current document, which I retrieve in the Java agent.

Here is the simplified code in the Java agent:

import lotus.domino.*;

public class JavaAgent extends AgentBase {

public void NotesMain() {



	try {

		Session session = getSession();

		AgentContext agentContext = session.getAgentContext();



		// (Your code goes here) 

	

	Agent agent = agentContext.getCurrentAgent();



		Database db = agentContext.getCurrentDatabase();

	Document oldDoc = db.getDocumentByID(agent.getParameterDocID()); 

	if (oldDoc == null) 

  		{      			System.out.println("Current Doc Not Found");

  		} else {			System.out.println("Current doc found !");	    			

}

	oldDoc.replaceItemValue("Field", "Field Value");

if (oldDoc.save())

{

System.out.println(“Doc Saved”);

} else {

System.out.println(“Doc Not Saved”);

} catch(Exception e) {

		e.printStackTrace();

	}

}

}

Java console displays: “Current doc found !” and “Doc Saved”. However, the current documents doesn’t get updated. The field I am trying to update is text type.

What do I do wrong ?

Thank you.