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The icefaces/lib/versions-licenses.html file states that the backport-util-concurrent.jar file is at version 2.2. Since Liferay was using version 2.1, I figured I would upgrade Liferay to version 2.2 as well in order to keep our products in sync.
Just to be sure, I downloaded version 2.2 of backport-util-concurrent.jar from http://dcl.mathcs.emory.edu/util/backport-util-concurrent/dist and to my surprise, the one I downloaded "diff"ered from the one that comes bundled with ICEfaces. I further examined the issue by doing a "jar tvf" on both the downloaded file and the ICEfaces file, and the files within the ICEfaces one were dated "Nov 25 2005" and the downloaded one was "Jun 04 2006". Since version 2.1 has files dated "Jan 28 2005" I think that the one that comes bundled with ICEfaces may indeed be older than version 2.1, and therefore not at version 2.2, as stated in the versions-licenses.txt file.
The latest version is 3.1, but that might be too much of an upgrade in order to maintain binary compatibility for Liferay.
Therefore I would recommend that ICEsoft download 2.2, and keep it at version 2.2 if possible.
Thank you,
Neil Griffin
Liferay, Inc.
Just to be sure, I downloaded version 2.2 of backport-util-concurrent.jar from http://dcl.mathcs.emory.edu/util/backport-util-concurrent/dist and to my surprise, the one I downloaded "diff"ered from the one that comes bundled with ICEfaces. I further examined the issue by doing a "jar tvf" on both the downloaded file and the ICEfaces file, and the files within the ICEfaces one were dated "Nov 25 2005" and the downloaded one was "Jun 04 2006". Since version 2.1 has files dated "Jan 28 2005" I think that the one that comes bundled with ICEfaces may indeed be older than version 2.1, and therefore not at version 2.2, as stated in the versions-licenses.txt file.
The latest version is 3.1, but that might be too much of an upgrade in order to maintain binary compatibility for Liferay.
Therefore I would recommend that ICEsoft download 2.2, and keep it at version 2.2 if possible.
Thank you,
Neil Griffin
Liferay, Inc.
dcl.mathcs.emory.edu is offline at the moment due to a disk crash, thereby complicating the updating of this library.