These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.25 s (backtrack: 0/20).


The following USE changes are necessary to proceed:
 (see "package.use" in the portage(5) man page for more details)
# required by dev-java/jackcess-4.0.10::gentoo
# required by =dev-java/jackcess-4.0.10 (argument)
>=dev-java/commons-logging-1.3.6 log4j

 * In order to avoid wasting time, backtracking has terminated early
 * due to the above autounmask change(s). The --autounmask-backtrack=y
 * option can be used to force further backtracking, but there is no
 * guarantee that it will produce a solution.

!!! All ebuilds that could satisfy "dev-java/osgi-cmpn:8" have been masked.
!!! One of the following masked packages is required to complete your request:
- dev-java/osgi-cmpn-8.0.0-r1::gentoo (masked by: OSGi-Specification-2.0 license(s))
A copy of the 'OSGi-Specification-2.0' license is located at '/Volumes/Disk 1/Repository/portage-git/licenses/OSGi-Specification-2.0'.


(dependency required by "dev-java/bnd-annotation-7.4.0::gentoo" [ebuild])
(dependency required by "dev-java/log4j-core-2.26.0::gentoo" [ebuild])
(dependency required by "dev-java/commons-logging-1.3.6::gentoo[log4j]" [ebuild])
(dependency required by "dev-java/jackcess-4.0.10::gentoo" [ebuild])
(dependency required by "=dev-java/jackcess-4.0.10" [argument])
For more information, see the MASKED PACKAGES section in the emerge
man page or refer to the Gentoo Handbook.