Hi,

this error helps. It looks like the lucene-core.jar file does not have the 
META-INF/services. I wonder how Solr works!

It would be good to figure out what's going on and why the JAR files in your 
local repository do not have the required META-INF/services subfolder.

Uwe

-----
Uwe Schindler
Achterdiek 19, D-28357 Bremen
https://www.thetaphi.de
eMail: [email protected]

> -----Original Message-----
> From: Michael Gibney <[email protected]>
> Sent: Wednesday, June 2, 2021 6:05 AM
> To: [email protected]
> Subject: Re: Solr/Lucene joint development workflow?
> 
> Uwe,
> Thanks for this advice! I followed this as closely as I could
> (including the gradle `--refresh-dependencies` flag), and was again
> able to compile (and compileTest) against mavenLocal. But on actually
> running tests, afaict all tests fail with the same stacktrace (copied
> below). iirc this was the same error I was getting previously with the
> SNAPSHOT build (before the introduction of the prerelease dependency).
> I'd be grateful for any advice on addressing this remaining error (and
> having encountered the error, I continue to be curious whether anyone
> has this workflow or something similar working in practice).
> 
> David, your suggestion to add "mavenLocalI()" to Gradle's repo list
> seems reasonable -- perhaps a more viable option now that the main
> branch is pegged to specific builds (as opposed to a SNAPSHOT)? I'm
> happy to help contribute to documentation of this process (once I have
> it working!).
> 
> One other challenge I encountered was determining which commit the
> current prerelease build is based on. The desired workflow would be to
> update the Lucene feature branch by merging upstream changes as far as
> the commit of the prerelease build (for use as a dependency of the
> Solr-side feature branch).
> 
> The exception I'm getting on running tests is:
> 
>     java.lang.ExceptionInInitializerError
>         at org.apache.lucene.codecs.Codec.getDefault(Codec.java:141)
>         at
> org.apache.lucene.util.TestRuleSetupAndRestoreClassEnv.before(TestRuleSetup
> AndRestoreClassEnv.java:133)
>         at
> org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfter
> Rule.java:42)
>         at
> com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(Stateme
> ntAdapter.java:36)
>         at
> org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClass
> Name.java:38)
>         at
> com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethod
> sRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
>         at
> com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethod
> sRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
>         at
> com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(Stateme
> ntAdapter.java:36)
>         at
> com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(Stateme
> ntAdapter.java:36)
>         at
> org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertio
> nsRequired.java:53)
>         at
> org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfter
> Rule.java:43)
>         at
> org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.ja
> va:44)
>         at
> org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgn
> oreAfterMaxFailures.java:60)
>         at
> org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTest
> Suites.java:47)
>         at org.junit.rules.RunRules.evaluate(RunRules.java:20)
>         at
> com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(Stateme
> ntAdapter.java:36)
>         at
> com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(
> ThreadLeakControl.java:370)
>         at
> com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutin
> gTask$0(ThreadLeakControl.java:826)
>         at java.base/java.lang.Thread.run(Thread.java:834)
> 
>         Caused by:
>         java.lang.IllegalArgumentException: An SPI class of type
> org.apache.lucene.codecs.Codec with name 'Lucene90' does not exist.
> You need to add the corresponding JAR file supporting this SPI to your
> classpath.  The current classpath supports the following names: []
>             at
> org.apache.lucene.util.NamedSPILoader.lookup(NamedSPILoader.java:113)
>             at org.apache.lucene.codecs.Codec$Holder.<clinit>(Codec.java:58)
>             ... 19 more
> 
> 
> On Fri, May 28, 2021 at 4:03 PM David Smiley <[email protected]> wrote:
> >
> > To whomever does this first, it would be great if the steps could be written
> down carefully in more detail so that it can be shared for its eventual 
> inclusion
> in /dev-docs
> >
> > Maybe "mavenLocalI()" should simply be added to Gradle's repo list by
> default?  This will speed up some first-time builds in some environments who
> already have lots of local Maven dependencies.
> >
> > ~ David Smiley
> > Apache Lucene/Solr Search Developer
> > http://www.linkedin.com/in/davidwsmiley
> >
> >
> > On Thu, May 27, 2021 at 12:09 PM Uwe Schindler <[email protected]>
> wrote:
> >>
> >> Hi Michael,
> >>
> >> since yesterday, the Lucene dependency is no longer a snapshot one, so
> parts of your mail are no longer valid. But the worksflow is very similar.
> >>
> >> If the Solr team wants to use a newer preview build of Lucene, there is a
> workflow using ASF Jenkins that can build a new "prerelease" release of the
> Lucene main branch and deploy it on some ASF data dump server as maven
> repository.
> >>
> >> The Gradle build of Solr is referring to the recent repository and picks a
> specific version (the build number of ASF jenkins).
> >>
> >> For joint development, I'd suggest to work like this:
> >> - Change the dependency in the gradle versions.props file to SNAPSHOT
> (only local, don't submit this as PR)
> >> - Add mavenLocal() as suggested in your mail (only local, don't submit 
> >> this as
> PR)
> >> - develop changes in lucene and install them in local repo
> >> - use them from solr through the snapshot dependency. BUT: make sure the
> snapshot is updated, this can be enforced by passing a gradlew command line
> parameter to redownload all dependencies.
> >> - once you are done with joint development create pull requests in both
> repositories
> >> - Lucene's change should be merged first. Once this is done and all tests
> pass, ask a committer to trigger the Jenkins job to build a new prerelease
> >> - Update the Solr pull request and enter the new repository coordinates
> created by Jenkins (needs to be done in 2 files, see below).
> >>
> >> For more details how to update Lucene dependencies in Solr, run:
> >> $ gradlew :helpDeps
> >>
> >> Uwe
> >>
> >> -----
> >> Uwe Schindler
> >> Achterdiek 19, D-28357 Bremen
> >> https://www.thetaphi.de
> >> eMail: [email protected]
> >>
> >> > -----Original Message-----
> >> > From: Michael Gibney <[email protected]>
> >> > Sent: Wednesday, May 26, 2021 8:02 PM
> >> > To: [email protected]
> >> > Subject: Solr/Lucene joint development workflow?
> >> >
> >> > I'm working on some features that involve changes to both Lucene and
> >> > Solr. Post-TLP-split, I'm wondering whether anyone has recommended
> >> > techniques to handle this kind of situation.
> >> >
> >> > Ideally one would work on Lucene changes, get them merged, and then
> >> > proceed with Solr development; but realistically even if this were as
> >> > straightforward in practice as it sounds in principal, there are cases
> >> > where one would still want to develop in parallel.
> >> >
> >> > I haven't been able to find any documented recommendation on this
> >> > subject. It's possible to have a locally built Lucene snapshot (via
> >> > `gradlew mavenToLocalRepo`); but I was only able to actually _build_
> >> > Solr against the local Lucene artifact by adding `mavenLocal()` to the
> >> > `allprojects/repositories` block in `gradle/defaults.gradle` -- and I
> >> > have yet to figure a way get the local Lucene artifact on the test
> >> > classpath (so I'm as yet unable to run Solr tests that depend on
> >> > unmerged upstream changes to Lucene).
> >> >
> >> > It's also possible that the partially-functional approach described
> >> > above will have to change now that Solr main depends on a specific
> >> > Lucene snapshot version.
> >> >
> >> > Is anybody doing something like this? Or perhaps I'm asking the wrong
> >> > question? I can think of solutions that involve setting up my own
> >> > maven repository, to which I publish my own pinned versions of Lucene,
> >> > and refer to such pinned versions/repo as part of a given Solr
> >> > "patch". But that feels both half-baked _and_ bloated, so I don't want
> >> > to go down that road unless I feel convinced there's no better
> >> > alternative.
> >> >
> >> > Michael
> >> >
> >> > ---------------------------------------------------------------------
> >> > To unsubscribe, e-mail: [email protected]
> >> > For additional commands, e-mail: [email protected]
> >>
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: [email protected]
> >> For additional commands, e-mail: [email protected]
> >>
> 
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