The error here is that ./debian/build-final-ckeditor.sh fails with « can't locate java: No such file or directory »
This script is actually calling ckbuilder ( jexec /usr/bin/ckbuilder -- build ... ) However, the package correctly lists ckbuilder as a build-dep, and ckbuilder itself depends on java ( default-jre | java{7..11}-runtime) The full build log shows that java *was* installed, *and* that it provided the usual suspects: > update-alternatives: using /usr/lib/jvm/java-17-openjdk- > amd64/bin/java to provide /usr/bin/java (java) in auto mode > update-alternatives: using /usr/lib/jvm/java-17-openjdk- > amd64/bin/jpackage to provide /usr/bin/jpackage (jpackage) in auto > mode > update-alternatives: using /usr/lib/jvm/java-17-openjdk- > amd64/bin/keytool to provide /usr/bin/keytool (keytool) in auto mode > update-alternatives: using /usr/lib/jvm/java-17-openjdk- > amd64/bin/rmiregistry to provide /usr/bin/rmiregistry (rmiregistry) > in auto mode > update-alternatives: using /usr/lib/jvm/java-17-openjdk- > amd64/lib/jexec to provide /usr/bin/jexec (jexec) in auto mode