Did you try to do this?

Then, install it using the command:
  mvn install:install-file -DgroupId=com.sun -DartifactId=tools \
     -Dversion=1.5.0 -Dpackaging=jar -Dfile=/path/to/file

where the path/to/file is the path to the file that maven cannot find, in
your case, ${java.home}/../lib/tools.jar.

Regards,

--
Carlos Curotto