Hi again, > There are two things to take into account: > > Building with Java 8: > - Lucene 2.9 is based on Java 1.4, so the build system passes "-source / - > target 1.4" to the compiler, which is no longer supported in Java 8. So you > cannot compile and test it without changing the build system. You have to > build it with earlier versions.
I just checked, Java 8 still supports building Java 1.4 code: warning: [options] source value 1.4 is obsolete and will be removed in a future release warning: [options] target value 1.4 is obsolete and will be removed in a future release But Java 9 already dropped support completely (1.4 and 1.5). So you may be able to compile, but running tests is harder... (see previous mail). > Running with Java 8 (with precompiled binaries from Maven Central or the > binary downloads): > It should work with Java 8, but you should in any case test it. One example > that uses Lucene 3.3.0 (a bit newer, based on Java 5) is "Atlassian JIRA". > This > one works perfectly fine with Java 8! > > Uwe > > ----- > Uwe Schindler > H.-H.-Meier-Allee 63, D-28213 Bremen > http://www.thetaphi.de > eMail: u...@thetaphi.de > > > > -----Original Message----- > > From: Erick Erickson [mailto:erickerick...@gmail.com] > > Sent: Thursday, May 07, 2015 4:59 AM > > To: java-user > > Subject: Re: Java8 and lucene version > > > > I'd just grab the source, build it and run the tests. WARNING: this is > > so old that I don't have much experience with it... > > > > Short form: > > Check out the code, something like: svn checkout > > https://svn.apache.org/repos/asf/lucene/java/tags/lucene_2_9_4 > > lucene_2_9_4 > > build it by going to the directory lucene_2_9_4 (or thereabouts) and > > execute the target "ant test". See what happens. > > > > But this is largely uncharted waters, so you're mostly on your own. > > > > Best, > > Erick > > > > > > On Wed, May 6, 2015 at 7:47 PM, Jason Wee <peich...@gmail.com> wrote: > > > The difficult way is to go through lucene code and read if is work > > > with java 8. If you can duplicate the index created with lucene > > > 2.9.4, perhaps you can try to upgrade java in test environment, it > > > should give some direct indication or result (for example, > > > exception, index cannot write/read, etc) immediately. > > > > > > hth > > > > > > jason > > > > > > On Thu, May 7, 2015 at 4:19 AM, Pushyami Gundala > > <pushy...@umich.edu> wrote: > > > > > >> Hi, We are using lucene 2.9.4 version for our application that has > > >> search. > > >> We are planning on upgrading our application to run on java 8. My > > >> Question is when we move to java 8 does the lucene-2.9.4 version > > >> still work? or i need to upgrade to new version of lucene to > > >> support java > > 8. > > >> Regards, > > >> Pushyami > > >> > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > > For additional commands, e-mail: java-user-h...@lucene.apache.org > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
