Java Development Tools

Hello,

I have implemented PagePhaseListener and Following is the beforePhase() method.

public void beforePhase(PagePhaseEvent pagePhaseEvent) {
        if (pagePhaseEvent.getPhaseId() == Lifecycle.PREPARE_MODEL_ID) {             
            if (!isPostback()) {                
               System.out.println("beforePhase() is called.");
            }            
        }
    }
private boolean isPostback() {
    FacesContext facesContext = FacesContext.getCurrentInstance();
    Application app = facesContext.getApplication();
    ExpressionFactory elFactory = app.getExpressionFactory();
    ELContext elContext = facesContext.getELContext();
    ValueExpression valueExp =
        elFactory.createValueExpression(elContext, "#{adfFacesContext.postback}", Object.class);
    return Boolean.TRUE.equals(valueExp.getValue(elContext));
}  

but on page load I got this output in console.

beforePhase() is called.
beforePhase() is called.

as it is called twice.

I checked that I have not declared context parameter for faces-config.xml in deployment descriptor.

I have also checked by removing the af:resources which includes resource files in order to check absolute path problem but still beforePhase() is called twice.

I am using jDeveloper 11g.

Please advice on the same.

Thanks.