Problem compiling 1.2 source

I'm a Newbie, and am experiencing an error compiling from CVS. I have
used both ant and ozoneAnt commands with the same result. I'm using Sun
jdk 1.4.2.04 on Linux. Here is the relevant portion of my compilation
output. Any guidance would be appreciated.

Thanks,
Kurt

compile.tools:
 
compile:
    [javac] Compiling 9 source files to
/home/kurtm/cvs/ozone/server/build/classes
    [javac]
/home/kurtm/cvs/ozone/server/build/src/org/ozoneDB/tools/OO1BenchmarkApp.java:283: warning: stop() in java.lang.Thread has been deprecated
    [javac]             benchmarkThread.stop();
    [javac]                            ^
    [javac] 1 warning
 
compile.server:
 
compile:
    [javac] Compiling 105 source files to
/home/kurtm/cvs/ozone/server/build/classes
    [javac]
/home/kurtm/cvs/ozone/server/build/src/org/ozoneDB/core/storage/gammaStore/GammaLock.java:15: cannot inherit from final org.ozoneDB.core.MROWLock
    [javac] public class GammaLock extends MROWLock {
    [javac]                                ^
    [javac] 1 error
 
BUILD FAILED
file:/home/kurtm/cvs/ozone/server/build.xml:167: Compile failed; see the
compiler error output for details.
 
Total time: 15 seconds
xp333r ozone #