What about Java 23-25? Haadoop not playing along with it?
Ralf On Wed, Feb 4, 2026 at 3:53 PM Isabelle Giguere <[email protected]> wrote: > Hi; > I'm trying to understand exactly what the issue is. > > I've had occasion to run a few small crawls using the default embedded > Hadoop, both with JVM 17 and 21. Actually, at my former employer, Nutch is > running on Java 21, last I saw. > > In a full production environment, if Nutch is using an external > Hadoop, and if Hadoop has difficulties with Java 17+ at runtime, then, > Nutch and Hadoop can each run on their own JVM. > > Otherwise, if it's compile-time, we don't have to wait for Hadoop to > compile with Java 17. > > Or am I completely off-track ? > > Isabelle Giguère > > > Le mar. 3 févr. 2026 à 16:52, Sebastian Nagel <[email protected]> > a écrit : > >> Hi everybody, >> >> the current Nutch development is ready for Java 17 >> with NUTCH-2971 fixed - thanks Isabelle! >> >> By now Nutch does not require Java 17 at compile or >> run time. Java 11 is still sufficient. >> >> This is good because Hadoop still does not guarantee >> full support of Java 17 [1]. >> >> However, staying compatible with Java 11 becomes a burden >> because more and more dependencies require an upgrade to Java 17. >> We have already two PRs open which are great improvements >> (thanks to Lewis!) but would require Java 17: >> - index-geoip NUTCH-3064 / PR #825 [2] >> - JUnit 6 NUTCH-3145 / PR #883 [3] >> >> We now have the following options for the next release (1.22): >> >> 1. stay on Java 11 >> >> 2. require Java 17 at compile time, but compile using "-target 11" >> to stay compatible with Java 11 at runtime >> >> 3. drop support for Java 11 and switch to Java 17 >> >> >> I'm leaning in favor of option 1 and try to release Nutch 1.22 >> during the next weeks. After the release go to option 3. >> >> >> Please share your thoughts and opinions! >> >> >> ~Sebastian >> >> >> [1] https://issues.apache.org/jira/browse/HADOOP-17177 >> [2] https://github.com/apache/nutch/pull/825 >> [3] https://github.com/apache/nutch/pull/883 >> >
