I agree with Stefan, at the moment I recommend ignoring those warnings. There isn't anything else we can do (other than removing support for pack200, which isn't a good option).
-Jaikiran On 10/10/18 9:56 AM, Stefan Bodewig wrote: > Hi Krzysztof > > I'm not actively working on Ivy so take my response with a grain of > salt. > > On 2018-10-09, Dragan, Krzysztof wrote: > >> Hi, >> scanning latest version of Apache Ivy(2.5.0-rc-1) using jdeprscan on >> jdk11 I noticed two problems with this jar. >> These two methods using internal jdk marked for removal and will be deleted: >> * class org/apache/ivy/util/FileUtil uses deprecated class >> java/util/jar/Pack200$Unpacker (forRemoval=true) >> * class org/apache/ivy/util/FileUtil uses deprecated class >> java/util/jar/Pack200 (forRemoval=true) > For background see https://openjdk.java.net/jeps/336 > > The Java community has decided to eventually remove support for the > pack200 format, but it still is there in Java11. Right now this is only > a warning, it will only become a real problem once the classes actually > get removed. They do not offer any alternative implementation right now, > and may never do (unlike the JAXB case, which is available as an > external library now). > > I am aware of an alternative based on the former Apache Harmony code in > https://github.com/pfirmstone/pack200 but am unsure about its state - > both technically and legally - I very vaguely recall the Pack200 spec > was encumbered with Oracle patents but may be totally wrong. > > In Ivy's case the only save option right now was to remove support for > pack200 archives and break existing setups that consume such archives > which seems to be excessive just in order to get rid of a warning. > > If yu ask me I'd recommend to live with the warning for now and wait for > an alternative to the class library's pack200 classes to become > available - which hopefully happens before the Java version removing > support gets released. > > Stefan > > --------------------------------------------------------------------- > To unsubscribe, e-mail: dev-unsubscr...@ant.apache.org > For additional commands, e-mail: dev-h...@ant.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@ant.apache.org For additional commands, e-mail: dev-h...@ant.apache.org
