Spring Integration Smb upload fails to create missing remote directory when running on Windows

[pfosser]

spring-integration/spring-integration-smb/src/main/java/org/springframework/integration/smb/session/SmbSession.java

Line 341 in 775bfd6

int idxPath = _path.lastIndexOf(FILE_SEPARATOR);

Hi, the method linked above checks the remote path (which is a smb path) for FILE_SEPARATOR which is initialized as

private static final String FILE_SEPARATOR = FileSystems.getDefault().getSeparator();

Clearly on Windows that is "\" which is never found in a smb path. So the need to create possibly missing remote dirs is never detected.

[artembilan]

Yeah...
I don't see a reason in that FILE_SEPARATOR constant at all.
We really deal with remote SMB paths over there, so, the separator is supposed to be that simple /.

Feel free to contribute the fix: https://github.com/spring-projects/spring-integration/blob/main/CONTRIBUTING.adoc!