This is the official port of Sun's Java™ Development Kit for FreeBSD. No known significant bugs exist at this time, but there are no guarantees of usability. However, many commercial companies rely on this port, so it should be safe to use.
The FreeBSD Foundation has negotiated a license with Sun Microsystems to distribute FreeBSD binaries for the Java Runtime Environment (JRE™) and Java Development Kit (JDK™).
The current release of the JDK and JRE available via the FreeBSD Foundation is 1.6.0-7. These binaries have been tested and certified to run with 6.3-RELEASE and 7.0-RELEASE (FreeBSD/i386 and FreeBSD/amd64) but may also work with other 6.X/7.X releases (FreeBSD/i386 and FreeBSD/amd64). Packages for JDK/JRE 1.5.0 are still available for download although they are not supported any longer.
For further information about downloading the JDK and JRE binaries for FreeBSD, please see the FreeBSD Foundation Java Downloads page.