1) removed check for obsolete property sun.boot.class.path
which caused an npe
2) system classes must not be reported as not found via DEPEND
so doing a check whether the class is loadable from the current
class loader (not doing this check for java-dep-check deps,
that is for commons-cli and asm)
Package-Manager: Portage-3.0.17, Repoman-3.0.2
Signed-off-by: Miroslav Šulc <fordfrog@gentoo.org>
