[GridSim-users] query

[Lata K M. <lat...@ya...>]

hello,
i am using j2sdk1.4.2 on windows xp with gridsim4.2 beta when i compile example1.java, i am getting 
cannot access gridsim.GridResource
bad classfile: c:\gridsimtoolkit-4.2beta\jars\gridsim.jar<gridsim/gridResource.class>
class file has wrong version 49.0 should be 48.0
please remove or make sure it appears in the correctsubdirof te claspath
private staatic GridResource createGridResource<>

pl. help me out