Error in getter method while running the appplication ?

HI,

Experts,

I have downloaded the WD Java appplication from url

( Web Dynpro Java Tutorials and Samples NW 2004 [original link is broken])

While the running the application i am getting this error

java.lang.NoSuchMethodError: java.math.BigDecimal.<init>(I)V

at com.sap.tut.wd.tutwd_table.tablecomp.TableComp.getProductsTOTAL_PER_ARTICLE(TableComp.java:237)

at com.sap.tut.wd.tutwd_table.tablecomp.wdp.InternalTableComp.getProductsTOTAL_PER_ARTICLE(InternalTableComp.java:176)

at com.sap.tut.wd.tutwd_table.tablecomp.wdp.IPublicTableComp$IProductsElement.wdGetObject(IPublicTableComp.java:437)

at com.sap.tc.webdynpro.progmodel.context.MappedNodeElement.wdGetObject(MappedNodeElement.java:351)

at com.sap.tc.webdynpro.progmodel.context.AttributePointer.getObject(AttributePointer.java:158)

... 81 more

How to over come this

Thanks in advance,

Shabeer ahmed.