Java Development Tools

on Adf Studio Edition Version 12.2.1.2.0

I'm getting this Error Message on Application compile

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<value n="description" v="Error(15,91): [Static type checking] - Cannot find matching method java.lang.Object#multiply(java.math.BigDecimal). Please check if the declared type is right and if the method exists. @ line 15, column 91."/>

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When I add Groovy Expression tested on Adf 11g.1.2.3.0

in a transient VO Attribute

the groovy expression is

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if (DmDiscountRate==null & DmDiscountAmount != null) {(DmDiscountAmount==null ? 0 :DmDiscountAmount ) ;}

else {if (DmDiscountRate != null & DmDiscountAmount == null)

{ DocumentEntry.sum("ProductNetAmount") == null ? 0:DocumentEntry.sum("ProductNetAmount") * ((DmDiscountRate== null ? 0 : DmDiscountRate)/100)};

else {0}; }

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I set the Transient excretion trustmode : trusted but I get the following Error

I add the same exact groovy Exprition inside the VO Source after I remove the check mark of Enable Groovy file Generation

and the application works fine and the value is calculated correct

is there any hint about that??

Thanks !!