Where is the p:fileUpload uploaded file saved and how do I change it?

I use the simple File upload of Primefaces in development with Netbeans. My test example is similar to to the Primefaces manual.
My question: where does the file get uploaded on my local computer? How can I change the path for it? Thx!

The jsf file:

<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:p="http://primefaces.org/ui">
    <h:head>
        <title>Page test</title>
    </h:head>
    <h:body>
        Hello! My first JSF generated page!
        <h:form enctype="multipart/form-data">
            <p:fileUpload value="#{fileBean.file}" mode="simple" />
            <p:commandButton value="Submit" ajax="false"/>
        </h:form>

    </h:body>
</html>

and the managed bean:

import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
import org.primefaces.event.FileUploadEvent;
import org.primefaces.model.UploadedFile;


    @ManagedBean

@RequestScoped
public class FileBean {

    private UploadedFile file;

    public FileBean() {
    }

    public UploadedFile getFile() {
        return file;
    }

    public void setFile(UploadedFile file) {
        this.file = file;

    }
}

Where is the p:fileUpload uploaded file saved and how do I change it?

2 Answers