uiConfigBean is null or missing

[Preethi Pandian]

I am trying build a plugin for Bamboo and when I am using 

list=uiConfigBean.getExecutableLabels('maven') I get the error that uiConfigBean is null or missing in my ftl

I also have the following in my configurator class:

setUiConfigBean(final UIConfigSupport uiConfigBean){

this.uiConfigBean = uiConfigBean;

}

And also added it to context in create and edit.

what am I missing ?