portage-ng / portage / dev-java / c3p0 / 0.9.5.5-r3
pmerge --pretend --verbose
!!! resolution failed
!!! request ( ( ('repo.livefs',) EqualityMatch: =False || ( ('category',) == virtual && ('package_is_real',) EqualityMatch: =False ) ) && =dev-java/c3p0-0.9.5.5-r3 ), mode none
!!! trying dev-java/c3p0-0.9.5.5-r3
!!!   request >=dev-java/log4j-12-api-2.25.2:0, mode depend
!!!   trying dev-java/log4j-12-api-2.26.0
!!!     request ~dev-java/log4j-api-2.26.0:0, mode depend
!!!     trying dev-java/log4j-api-2.26.0
!!!       request dev-java/bnd-annotation:0, mode depend
!!!       trying dev-java/bnd-annotation-7.4.0
!!!         request dev-java/osgi-cmpn:8, mode depend
!!!         removing choices involving dev-java/osgi-cmpn:8
!!!       removing choices involving dev-java/bnd-annotation:0
!!!     removing choices involving ~dev-java/log4j-api-2.26.0:0
!!!   removing choices involving >=dev-java/log4j-12-api-2.25.2:0

Failures encountered:
!!! failed '( ( ('repo.livefs',) EqualityMatch: =False || ( ('category',) == virtual && ('package_is_real',) EqualityMatch: =False ) ) && =dev-java/c3p0-0.9.5.5-r3 )'
potentials:
repo gentoo: [ ebuild src: dev-java/c3p0-0.9.5.5-r3 ]

Wall time
0.558 s vs. 1.402 s for portage-ng