===>  jdk16-doc-1.6.0.30 you must manually fetch jdk-6u30-apidocs.zip from http://www.oracle.com/technetwork/java/javase/downloads/index.html by selecting the "Download" link for the "Java SE 6 Documentation", place it in /scratch/horde and then run make again.
*** Error code 1

Stop.
make: stopped in /buildshare/ports/355755/java/jdk16-doc