Career Related (JAVA or DATASTAGE) [on hold]

I am a fresher, I have learnt JAVA/J2EE(core-java,JDBC,servlets,JSP,Hibernate,Spring). Recently I got job, but they have given the position as BI developer.

I am in confusion what to select either go with that profile or try for the java profile.

Is it possible to shift from BI to JAVA in future, please help me choose the better one.

Please help me to choose right path for better future.

Thanks..