We've run into something similar here. We needed Sun Java 1.4.2 to run on amd64 machines, but Sun didn't provide amd64 builds before Java 5.<br>
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We hacked /usr/share/java-package/sun-j2re.sh to "detect" 32-bit Java builds as usable for amd64, and installed the 32-bit compatibility libraries that Java needed (so that dh_shlibdeps worked).<br>
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For the record, that's these ones:<br>
$ aptitude install lib32gcc1 lib32asound2 and ia32libs<br>
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The attached patch adds a "Suggests:" line for those pacakges (probably not the best way to handle it) and allows 32-bit Java builds to be built on amd64.<br clear="all"><br>-- <br>Rob Hunter<br>Ninja for Hire