failed to install db46 (for git-core)

[Kevin Layer]

4 days ago this worked.  2 days ago I got this.  Same hardware,
different Mac OS X installs, which are idential (fully up to date,
etc).

Mac OS X Server 10.6.5, Intel.  Latest Xcode.  Macports 1.9.2.

bash-3.2# port install git-core
--->  Computing dependencies for git-core
--->  Dependencies to be installed: python26 db46 gdbm readline sqlite3 rsync popt
--->  Configuring db46
Error: db46 requires the Java for Mac OS X development headers.
Error: Download the Java Developer Package from: <https://connect.apple.com/cgi-bin/WebObjects/MemberSite.woa/wa/getSoftware?bundleID=20719>
Error: Target org.macports.configure returned: missing Java headers
Error: Failed to install db46
Log for db46 is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_databases_db46/main.log
Error: The following dependencies were not installed: python26 db46 gdbm readline sqlite3 rsync popt
Error: Status 1 encountered during processing.
To report a bug, see <http://guide.macports.org/#project.tickets>
bash-3.2#