I till have trouble to miograte to rdf4j 4.*

[naturzukunft]

There are some 3.7.2 artifacts, that are very sticky! i cannot find a problem in my dependencies, again searching for more than one hour ;-(

[hmottestad]

Can you try to remove the cached dependencies from your .m2 directory? Try removing .m2/repository/org/eclipse

https://www.baeldung.com/maven-local-repository

And then run mvn clean install -U

If this doesn’t help then you could try looking at the effective pom: mvn org.apache.maven.plugins:maven-help-plugin:3.2.0:effective-pom -Dverbose=true

[hmottestad]

I removed one item at a time from your pom file while running mvn clean; mvn dependency:tree | grep 3.7.2 to see if it made a difference. When I saw that removing the import of the camel-spring-boot-dependencies bom fixed the issue I suspected that they were using an old version of RDF4J.

[naturzukunft]

these boms are the devil! as long as it works, everything is very convenient. in the past, you could find such errors without try&error.
do you know a way to insert exclusions ?

[hmottestad]

You can try changing the order of your imports. Ultimately though you should probably stick to 3.7.2 since that is what camel-spring-boot-dependencies is using, or you will risk some other issues down the line where code from there calls into a method that doesn't exist in RDF4J 4.0.4.

[naturzukunft]

oh my god, now i make my first contribution and can't use it ;-)
I'll see, what i'm doing. thank you very much!
I am a little surprised that camel depends on rdf4j.

[abrokenjester]

I had a quick look and it seems they use Apache Any23, which in turn uses RDF4J's Model API and Rio parsers. Their latest release is still dependent on RDF4J 3.7.4.

To make matters more complicated, Any23 has a dependency on OWLAPI, which also hasn't upgraded to RDF4J 4 yet, and which blocks this Any23 PR from being merged.

This, therefore, is a textbook example of why major releases are a Big Deal, and why doing things like removing even long-deprecated code can have serious downstream consequences.