error checking jars with same content -- looking for user input

I am using the 0.2.5 script from here on an Ubuntu 10.04 (2.6.32-38 x86_64) machine to build the java6 package and I'm running into an error while building:

[x] Installing Java build requirements success
[x] Making build directories success
[x] Removing clones of https://github.com/rraptorr/sun-java6 success
[x] Cloning https://github.com/rraptorr/sun-java6 success
[x] Checking out v6.34-1 success
[x] Getting Java SE download page success
[x] Getting current release download page success
[x] Downloading jdk-6u34-linux-i586.bin : 68.43 MB success
[x] Symlinking jdk-6u34-linux-i586.bin success
[x] Downloading jdk-6u34-linux-x64.bin : 68.7 MB success
[x] Symlinking jdk-6u34-linux-x64.bin success
[x] Getting Java Cryptography Extension download page success
[x] Downloading jce_policy-6.zip : 8.89 KB success
[x] Symlinking jce_policy-6.zip success
[x] Updating the changelog success
[x] Building the packages success

ERROR! Packages failed to build.

The last few lines of the log file are:

: # check for jars with the same content
set -e; \
    for j in jre/lib/ext/dnsns.jar jre/lib/ext/localedata.jar jre/lib/im/indicim.jar jre/lib/im/thaiim.jar jre/lib/charsets.jar jre/lib/management-agent.jar jre/lib/plugin.jar jre/lib/resources.jar jre/lib/javaws.jar jre/lib/deploy.jar jre/lib/alt-rt.jar jre/lib/alt-string.jar ; do \
      echo "  Comparing $j ..."; \
      d=${j%*.jar}; \
      set -- i586 x64; a1=$1; shift; \
      mkdir -p tmp-$a1/$d; \
      unzip -q -d tmp-$a1/$d $a1-jdk/$j; \
      for a2; do \
        mkdir -p tmp-$a2/$d; \
        unzip -q -d tmp-$a2/$d $a2-jdk/$j; \
        if diff -ur tmp-$a1/$d tmp-$a2/$d; then \
          echo "    OK"; \
        else \
          echo "    differ"; \
          badjars="$badjars $j ($a1, $a2)"; \
        fi; \
      done; \
    done; \
    if [ -n "$badjars" ]; then \
      echo "Differing jar files: $badjars"; \
      exit 1; \
    fi
  Comparing jre/lib/ext/dnsns.jar ...
replace tmp-i586/jre/lib/ext/dnsns/META-INF/MANIFEST.MF? [y]es, [n]o, [A]ll, [N]one, [r]ename:  NULL
(EOF or read error, treating as "[N]one" ...)
make: *** [unpack-stamp] Error 1
dpkg-buildpackage: error: debian/rules binary gave error exit status 2 29834's retcode: 2
success

This was working for me a few days ago on a different machine. Is there something in my environment setup that is causing it to ask about replacing this file during the dpkg-buildpackage (version 1.15.5.6ubuntu2) execution? I'm happy to help debug/write patches/submit pull requests to get this fixed if someone that knows more can point me in the right direction.

flexiondotorg / oab-java6

error checking jars with same content -- looking for user input #53