That error means that Jasper is not injecting the parameter value into the XMLA request correctly. So SSAS can see that you have a parameter in the query, but it has not been given a value to use. I don't know anything about Jasper so I don't
know if there is any way of fixing that. In SSRS you could work around an issue like that by using an expression in the query and concatenating the parameter value in manually.
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