Stack dump? Version?<br>Is $gb.row and $gu.row not null? <br>Is upcharge in all selected GroupUpcharges not null?<br>-W<br><br><br><div class="gmail_quote">On 20 July 2011 18:20, mjohansen <span dir="ltr"><<a href="mailto:mjohansen@lazboy.com">mjohansen@lazboy.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">I'm trying to create an accumulator to sum a BigDecimal. Here's what I wrote:<br>
<br>
$upcharge : BigDecimal( )<br>
from accumulate( GroupUpcharges( row>$gb.row && row<=$gu.row, $value :<br>
upcharge),<br>
init( BigDecimal total = BigDecimal.ZERO; ),<br>
action( total=total.add($value); ),<br>
reverse( total=total.subtract($value); ),<br>
result( total ) )<br>
<br>
$gb and $gu are set earlier in the WHEN clause.<br>
<br>
When I run this, it compiles successfully, but then flows up at run time<br>
with a null pointer exception. What am I doing wrong?<br>
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