Joe White wrote:
The drl test case below illustrates a problem with math inside of
drools when using the mvel dialect. When using autoboxing the order of
operations (and parens) are not respected. This is using drools 5.0M1
and mvel-2.0-dp4.jar. The correct answer is 80 and the answer provided
with autoboxing in the mvel dialect is 100.
I'm uncertain of how to create a viable test case in pure mvel to add
it to their jira. Any help is appreciated,
Drop in the newer MVEL, I believe this is fixed - if it's not open a
JIRA over at MVEL.
http://mvel.codehaus.org/
Thanks,
Joe
*package* test;
*dialect* "mvel"
*rule* "TestRule"
*when*
*then*
*double* value=(2**new* Double("50"))-10-10;
System.out.println(value);
*double* valueTwo=(2*50)-10-10;
System.out.println(valueTwo);
*End*
* *
*RESULTS*
Wrong = 100.0
Right = 80.0
------------------------------------------------------------------------
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