Saxon

Legacy ID: #4725336 Legacy Poster: popol (mrjeje)

Hi, I am currently using saxon 8.8B with external Java functions in XQueries. I have a problem when using a list containing only one item. My first query is: let $var1 := variable:new('name1','value1') let $var2 := variable:new('name2','value2') return test:run(($var1, $var2)) My second query is: let $var1 := variable:new('name1','value1') return test:run(($var1)) My run method is: public class Test { public static String run(List<Variable> aVAr) { return "Hello"; } } My Variable class is quite simple: public Variable(final String aName, final String aValue) { name = aName; value = aValue; } The execution of return test:run(($var1, $var2)) is ok, but when I try return test:run(($var1)) I get the following exception: Error on line 1 of module with no systemId: Error in call to extension function {public static java.lang.String com.airbus.ics.settings.query.Test.run(java.util.List)}: Conversion of external object to java.util.List is not supported Exception in thread "main" ; SystemID: module with no systemId; Line#: 1; Column#: -1 net.sf.saxon.trans.DynamicError: Error in call to extension function {public static java.lang.String com.airbus.ics.settings.query.Test.run(java.util.List)}: Conversion of external object to java.util.List is not supported I assumed that test:run(($var1)) is equivalent to a list containing only one item. Having a look at this stack and at the saxon method convertToJava, I have the impression that Saxon converts the one item list into an Atomic value that doesnot fit the run method. If I try the same queries with var1 and var2 containing String intances, both tests are exceuted sucessfully. Is there a known bug on problems handling list with one or more instance of user external java class ? Thanks