Throwing Invalid Expression for EL to action attribute of Command Link

 Hi all,

Im tring to redirect to different pages based on role

   <af:commandLink text="Home" id="hom1" immediate="true"

                            inlineStyle="color:white; height:24px; font-size:12.5px; vertical-align:bottom;"

                                clientComponent="true" action="#{(securityContext.userInRole['Prosecutor'])?'toPD':'toCD'}"/>

#{(securityContext.userInRole['Prosecutor'])?'toPD':'toCD}  this is the condition i am using

but it always throws Invalid expression

i have tested it by using EL as a value for outputtext component and its printing proper value.

my JDev ver: 11.1.1.7

is this some kind of bug in 11.1.1.7

Thanks & Regards,

Shakir