Does the conversion of simple type values into XPath objects, as described for variables, apply for variable properties retrieved through bpel:getVariableProperty(...) in an XPath expression?

While I believe it is the intension to apply such a conversion, I cannot point out a requirement that enforces this -- did I miss it? However, the method signature returns “object”, suggesting that it may return an XPath object like Boolean for example. Also, an example in section 15.1.3 uses a boolean expression that expects an implicit conversion:

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In the specification, section 8.2.1 "Enclosing Elements", it says:

  Evaluation of a WS-BPEL expression or query will yield one of the following  ...:
  - a single XML infoset item ...
  - a collection of XML infoset items ...
  - a sequence of CIIs for simple type data ...
  - a variable reference: e.g. <from>$myFooVar</from>

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It is not clear to me, how to make the context node point to an XPath object, like Boolean for example.

XPath 1.0 only accept a single node as the "context node", and it does not support XML Schema types, thus, any node value is an XPath string object.

Section 8.2.6:
"When XPath 1.0 is used as Query Language [...] If the type is a simple type, the context node MUST point to the XPath object specified in section 8.2.2"

Section 8.2.2:

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