Can't access one managed bean from another

Question

I'm a beginner in JSF and I'm having problems accessing data stored in one session scoped bean from another bean. I've read similar questions here, but they didn't help.

Anyway, here's one bean:

import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
@ManagedBean(name = "loginBean")
@SessionScoped
public class loginBean
{

    private String username;
    private String password;
/*etc*/

I want to access the username and password from that bean in this second bean:

import javax.faces.bean.ManagedBean;
import javax.faces.bean.ManagedProperty;
import javax.faces.bean.SessionScoped;
import javax.faces.context.FacesContext;
/*rest of the imports*/
@ManagedBean
@SessionScoped
public class glavnaStrBean 
{
@ManagedProperty(value="#{loginBean}")
    loginBean logBin;


    public loginBean getLogBin() {
        return logBin;
    }

    public void setLogBin(loginBean logBin) {
        this.logBin = logBin;
    }

Problem is that variable logBin is always null.

Any ideas what I'm doing wrong here?