Saxon

The query:

for $i in (<_>1</_>, 2)
return 'x'[$i]

The expected result: x x

The returned result:

java.lang.ClassCastException: class net.sf.saxon.tree.tiny.TinyElementImpl cannot be cast to class net.sf.saxon.value.NumericValue (net.sf.saxon.tree.tiny.TinyElementImpl and net.sf.saxon.value.NumericValue are in unnamed module of loader 'app')
        at net.sf.saxon.expr.SubscriptExpression.evaluateItem(SubscriptExpression.java:151)
        at net.sf.saxon.expr.Expression.process(Expression.java:940)
        at com.saxonica.ee.bytecode.ByteCodeCandidate.process(ByteCodeCandidate.java:146)
        at net.sf.saxon.expr.ForExpression.lambda$process$0(ForExpression.java:399)
        at net.sf.saxon.om.SequenceIterator.forEachOrFail(SequenceIterator.java:135)
        at net.sf.saxon.expr.ForExpression.process(ForExpression.java:397)
        at com.saxonica.ee.bytecode.ByteCodeCandidate.process(ByteCodeCandidate.java:146)
        at net.sf.saxon.query.XQueryExpression.run(XQueryExpression.java:453)
        at net.sf.saxon.s9api.XQueryEvaluator.run(XQueryEvaluator.java:369)
        at net.sf.saxon.Query.runQuery(Query.java:895)
        at net.sf.saxon.Query.doQuery(Query.java:423)
        at net.sf.saxon.Query.main(Query.java:97)
java.lang.RuntimeException: Internal error evaluating template rule  at line 2 in module file:/c:/Users/user/Desktop/x.xq
        at com.saxonica.ee.bytecode.ByteCodeCandidate.process(ByteCodeCandidate.java:159)
        at net.sf.saxon.expr.ForExpression.lambda$process$0(ForExpression.java:399)
        at net.sf.saxon.om.SequenceIterator.forEachOrFail(SequenceIterator.java:135)
        at net.sf.saxon.expr.ForExpression.process(ForExpression.java:397)
        at com.saxonica.ee.bytecode.ByteCodeCandidate.process(ByteCodeCandidate.java:146)
        at net.sf.saxon.query.XQueryExpression.run(XQueryExpression.java:453)
        at net.sf.saxon.s9api.XQueryEvaluator.run(XQueryEvaluator.java:369)
        at net.sf.saxon.Query.runQuery(Query.java:895)
        at net.sf.saxon.Query.doQuery(Query.java:423)
        at net.sf.saxon.Query.main(Query.java:97)

Hope this helps.