How to rewrite some old class

hi,
I need to rewrite some old class, but I'm not sure how...
this is old class ...
import com.sun.xml.tree.XmlDocument;
class xy {
public xy () {
XmlDocument doc = new XmlDocument();
and for example ....
Element main = doc.createElement("MAIN");
org.w3c.dom.Text name_ = doc.createTextNode(op.getName());
and so on ....
Now, I want to know which classes(packages) to use instead of com.sun.xml.tree.XmlDocument
It is an old application which I have to upgrade so I have to use this code, but I want to throw out this classes that are not used anymore in java
thanks ...

ever used 'Code guide' ? It can drop unused statements and also automatically import any used files the import statement for which were accidentally missed. But I think the software is not free..... check if the demo version is available.
if you don't want to go for the software then u have no other option than to develop your own code which can parse your files and trace the unused imported files and delete the irrelevant code lines. sounds like reinventing the wheel?

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