将setParameter与节点集一起使用时，会引发异常“从java.lang.String到节点集的无效转换”

I am trying to transform an XML by invoking an XSLT from my java code. I am facing an issue in passing a XML string as parameter to the XSLT. This causes an exception: Invalid conversion from 'java.lang.String' to 'node-set'.I am trying to transform an XML by invoking an