title: javax.el.PropertyNotFoundException: Target Unreachable, 'ManagedBean' returned null
body: <p>I am new in ADF JSF please assist,
  I am trying to map my Managed bean scope like request ,pageFlow and backingBean .
  but getting following errors,</p>
  
  <pre>
  ManagedBean -- Scope =  request 
  Error -- javax.el.PropertyNotFoundException: Target Unreachable, 'ManagedBean' returned null 
  
  ManagedBean --- scope = backingBean or pageFlow
  Error --- An invalid object operation was invoked on type View Object with name EmployeeViewImpl_0
  </pre>
  
  <p>This is the exception:</p>
  
  <pre>
  javax.el.ELException: oracle.jbo.InvalidObjAccessException: JBO-25036: An invalid object operation was invoked on type View Object with name EmployeeViewImpl_0
    at javax.el.BeanELResolver.getValue(BeanELResolver.java:266)
    at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:143)
    at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java­:72)
    at com.sun.el.parser.AstValue.getValue(AstValue.java:118)</pre>