Is there an option to fall back to the older v.1.2.8 implementation if
necessary ? It would certainly alleviate issues for any applications
that might run into issues with the latest and greatest zlib libraries.
JDK-8133206 would be one such example.
Regards,
Sean.
On 05/02/2016 18:55, Xueming Shen wrote:
Hi
Please help codereview the change to build the jdk9 runtime to use the
system zlib on
Solaris and Linux platforms by default.
Issue: https://bugs.openjdk.java.net/browse/JDK-8031767
Webrev: http://cr.openjdk.java.net/~sherman/8031767/webrev/
Background info:
Compression is heavily used in Java based big data/middle-ware
applications.
There are many products in market today that help compression performance
either through software or hardware acceleration and most likely these
products
support the zlib interface as API, for example Intel's IPP library has
a faster
version of compression libraries. To configure the Java runtime to use
the system
zlib would make these acceleration capabilities available to java
users through
java.util.zip package directly. The jdk already has a build
configuration option
to build the jdk to use the system zlib via "--with-zlib=system" and
the OSX is
by default built to use the system zlib. This proposal is to propose
to build
the jdk to use the system zlib library (the zlib bundled by the
underlying Solaris/
Linuxplatforms), instead of the binary built from source code jdk
repository
(current 1.2.8 from the open source zlib.org)
Thanks,
Sherman
btw, attached is the similar change in the closed repo:
autoconf/generated-configure.sh
-------------------------------------------------------------
# Do not change or remove the following line, it is needed for
consistency checks:
-DATE_WHEN_GENERATED=1454436146
+DATE_WHEN_GENERATED=1454626552
###############################################################################
#
# Initialization / Boot-strapping
#
------------------------------------------------------------------------
@@ -58839,14 +58839,14 @@
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for which zlib to
use" >&5
$as_echo_n "checking for which zlib to use... " >&6; }
- DEFAULT_ZLIB=bundled
- if test "x$OPENJDK_TARGET_OS" = xmacosx; then
- # On macosx default is system...on others default is bundled
DEFAULT_ZLIB=system
+ if test "x$OPENJDK_TARGET_OS" = xwindows; then
+ # On windows default is bundled...on others default is system
+ DEFAULT_ZLIB=bundled
fi
if test "x${ZLIB_FOUND}" != "xyes"; then
# If we don't find any system...set default to bundled
DEFAULT_ZLIB=bundled
