Since 2.0.7 system.swap.size is reporting wrong values for total and free.
A sol11 x86 server with 4 GB of swap is reporting it has 48 GB
A sol11 sparc server with 256 swap is reporting 340 GB
a sol10 sparc server with 24 GB swap is reporting 1.4 GB
a sol10 x86 server with 144 GB swap is reporting 190 GB