Hi, is there any reason why the bundled zlib is patched to make zlib's "uLong" type a 32-bit int on 64-bit platforms ? This change to the original zlib is there since the very first drop of OpenJDK 6  (which still had version 1.1.3 of zlib). Maybe it was required at that time when it was still possible to create images with both, 32- and 64-bit versions of the JDK and choose the one you want with -d64/-d32?
However, as of today, I can't imagine why this patch should be still required? Especially taking into account that when the jdk is built with "--with-zlib=system", it will use the systems version of "zconf.h" anyway, which doesn't have this change. Nevertheless, jdk's using the system zlib are being build and are in use since many years on all major Linux distributions without any known zlib problems. So if nobody objects, I'll file a RFE to remove this zlib patch. Thank you and best regards, Volker  http://hg.openjdk.java.net/jdk/jdk/file/tip/src/java.base/share/native/libzip/zlib/patches/ChangeLog_java#l4  http://hg.openjdk.java.net/jdk6/jdk6/jdk/annotate/d7039bceb849/src/share/native/java/util/zip/zlib-1.1.3/zconf.h#l250 Amazon Development Center Germany GmbH Krausenstr. 38 10117 Berlin Geschaeftsfuehrung: Christian Schlaeger, Jonathan Weiss Eingetragen am Amtsgericht Charlottenburg unter HRB 149173 B Sitz: Berlin Ust-ID: DE 289 237 879