Bug#1117438: umlet: FTBFS: cp: cannot overwrite non-directory 'debian/maven-repo/org/sourceforge/jlibeps/jlibeps/debian' with directory 'debian/org/sourceforge/jlibeps/jlibeps/debian'

[Santiago Vila]

Package: src:umlet
Version: 15.1+ds-1
Severity: serious
Tags: ftbfs forky sid

Dear maintainer:

During a rebuild of all packages in unstable, this package failed to build.

Below you will find the last part of the build log (probably the most
relevant part, but not necessarily). If required, the full build log
is available here:

https://people.debian.org/~sanvila/build-logs/202510/

About the archive rebuild: The build was made on virtual machines from AWS,
using sbuild and a reduced chroot with only build-essential packages.

If you cannot reproduce the bug please contact me privately, as I
am willing to provide ssh access to a virtual machine where the bug is
fully reproducible.

If this is really a bug in one of the build-depends, please use
reassign and add an affects on src:umlet, so that this is still
visible in the BTS web page for this package.

Thanks.

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[...]
 debian/rules clean
dh clean --with javahelper
   debian/rules execute_before_dh_auto_clean
make[1]: Entering directory '/<<PKGBUILDDIR>>'
rm -f -rf umlet-elements/src/main/java/com/baselet/element/sequence_aio/facet/specific
rm -f -rf umlet-elements/src/main/java/com/baselet/element/facet/customdrawings/gen
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
   dh_auto_clean
	bash -c "for dir in \$(find . -name target -type d); do if [ -f \$(echo \$dir | sed -e s/target\$/pom.xml/) ]; then rm -Rf \$dir; fi done"
	mh_unpatchpoms -pumlet
   jh_clean
Duplicate specification "u=s" for option "u"
   dh_clean
 debian/rules binary
dh binary --with javahelper
   dh_update_autotools_config
   dh_autoreconf
   dh_auto_configure
	mh_patchpoms -pumlet --debian-build --keep-pom-version --maven-repo=/<<BUILDDIR>>/umlet-15.1\+ds/debian/maven-repo
   debian/rules execute_after_dh_auto_configure
make[1]: Entering directory '/<<PKGBUILDDIR>>'
mkdir -p debian/maven-repo/org/sourceforge/jlibeps/
cp -a debian/org/sourceforge/jlibeps/jlibeps debian/maven-repo/org/sourceforge/jlibeps/
cp: cannot overwrite non-directory 'debian/maven-repo/org/sourceforge/jlibeps/jlibeps/debian' with directory 'debian/org/sourceforge/jlibeps/jlibeps/debian'
make[1]: *** [debian/rules:10: execute_after_dh_auto_configure] Error 1
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:5: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
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