Buildfarm compile failure

My buildfarm member
(http://www.pgbuildfarm.org/cgi-bin/show_status.pl?member=piapiac) started
reporting the following error yesterday which is related to the commit
https://github.com/pgjdbc/pgjdbc/commit/f20437b2a7f8140c81215bc104b0f1109be8263a

compile:
[javac] /mnt/data/buildarea/REL9_3_STABLE/pgjdbc/build.xml:243:
warning: 'includeantruntime' was not set, defaulting to
build.sysclasspath=last; set to false for repeatable builds
[javac] Compiling 174 source files to
/mnt/data/buildarea/REL9_3_STABLE/pgjdbc/build
[javac]
/mnt/data/buildarea/REL9_3_STABLE/pgjdbc/org/postgresql/jdbc4/Jdbc4Connection.java:21:
org.postgresql.jdbc4.Jdbc4Connection is not abstract and does not
override abstract method haveMinimumServerVersion(int) in
org.postgresql.core.BaseConnection
[javac] public class Jdbc4Connection extends AbstractJdbc4Connection
implements java.sql.Connection
[javac] ^
[javac] Note: Some input files use or override a deprecated API.
[javac] Note: Recompile with -Xlint:deprecation for details.
[javac] Note: Some input files use unchecked or unsafe operations.
[javac] Note: Recompile with -Xlint:unchecked for details.
[javac] 1 error

I've attached a patch to implement the missing method.
--
Mike Fowler
Registered Linux user: 379787