XQuery import statement fails in current development code, when run from the file system

[rvdb]

In eXist-3.0RC2 and the latest nightly build (d555767), XQuery import statements fail when executed from the file system.

Given following main XQuery file main.xq:

xquery version "3.0";
import module namespace x="x" at "imported.xq";
x:echo("main query")

...and following imported XQuery file imported.xq:

xquery version "3.0";
module namespace x="x";
declare function x:echo($string) {
  let $output := "imported query"
  return string-join(($string, $output), ' -- ')
};

When both files are stored in ${exist.home}/webapps/test-import, execution of the main XQuery file at http://localhost:8080/exist/test-import/main.xq fails with following error:

Illegal char <:> at index 4: file:///F:/devtools/eXist/eXist-nightly/webapp/test-import/imported.xq

This worked as expected in eXist-3.0RC1 and earlier. Yet, when the files are stored in and run from the db, the XQuery works as expected without errors.

I'll include the files in this file: test-import.zip

[wolfgangmm]

I stumbled across this as well and just started debugging. The issue somehow seems limited to windows.

[dizzzz]

related to #1041 ?

[wolfgangmm]

@dizzzz yes, both issues were caused by switching to Paths.get in SourceFactory.getSource (38dff53). The reason why this went unnoticed for so long probably is because the issue will only pop up on windows and none of us runs the test suite on windows. See SourceFactoryTest for the corresponding tests, which do pass on mac/linux.

[dizzzz]

@wolfgangmm hmmmmmm interesting. and annoying...

[adamretter]

@wolfgangmm There is nothing that you can't do with Path that we did with File. Perhaps I made a mistake when I modified the code, do you have an example file path for a test case that I can use to identify and fix the issue?

[wolfgangmm]

I already fixed the issue and am running the test suite now. The main problem is that Paths.get may throw an InvalidPathException which needs to get caught so the code continues probing.

[rvdb]

@wolfgangmm Thanks for the quick fix. This Windows user can confirm that XQuery imports of files on the file system are working now, as well as loading files from the file system with the doc() function (as reported in #1041).