I am all of a sudden getting the below error (and things were working just fine – weird).  Works fine in 9.1.2 but not in 9.2.X.  Any guidance would be greatly appreciated.

Note:  I tried to send you an email with the full stack trace, but the moderator rejected it because the email was too long.  I’ve cut down the size, but you now no longer have the full stack trace.  If you need the full stack trace, please let me know how you’d like that shared with you.

Thanks,

Buddy

Error:

Improper use? Potential bug? Your feedback is welcome:

Contact: basex-talk@mailman.uni-konstanz.de

Version: BaseX 9.2

Java: AdoptOpenJdk, 1.8.0_202

OS: Windows 10, amd64

Stack Trace:

java.lang.ArrayIndexOutOfBoundsException: 1

               at org.basex.query.expr.Preds.simplify(Preds.java:215)

               at org.basex.query.expr.Filter.optimize(Filter.java:82)

               at org.basex.query.expr.Filter.inline(Filter.java:260)

               at org.basex.query.expr.gflwor.ForLet.inline(ForLet.java:66)

               at org.basex.query.expr.gflwor.GFLWOR.inline(GFLWOR.java:804)

               at org.basex.query.expr.gflwor.GFLWOR.inlineLets(GFLWOR.java:339)

               at org.basex.query.expr.gflwor.GFLWOR.optimize(GFLWOR.java:106)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:98)

               at org.basex.query.expr.If.compile(If.java:63)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.expr.gflwor.ForLet.compile(ForLet.java:43)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:88)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncCall.compile(StaticFuncCall.java:64)

               at org.basex.query.expr.gflwor.GFLWOR.compile(GFLWOR.java:94)

               at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69)

               at org.basex.query.func.StaticFuncs.compile(StaticFuncs.java:184)

               at org.basex.query.func.fn.FnFunctionLookup.opt(FnFunctionLookup.java:34)

               at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:77)

               at org.basex.query.expr.Arr.compile(Arr.java:43)