Hi, On Wed, Mar 9, 2022 at 12:34 PM Andy Seaborne <a...@apache.org> wrote: > > > > On 09/03/2022 11:16, Martynas Jusevičius wrote: > > Hi, > > > > This appeared after Java upgrade from 11 to 17: > > > > WARN LocationMapper:188 - Error in configuration file: Cannot invoke > > "org.apache.jena.rdf.model.Property.asNode()" because > > "org.apache.jena.vocabulary.RDF.type" is null > > May be init related ... depends when it happened in the app.
Most likely is as it happens very early in the startup. I haven't noticed it with Java 11 though, pretty sure it wasn't there. > > Always good to call > JenaSystem.init > before any Jena code is touched if you can. It makes the whole thing > deterministic. > JenaSystem.init() is called in a ServletContextListener. > > I was looking at the LocationMapper code, but line 188 does not > > contain anything like that: > > https://github.com/apache/jena/blob/main/jena-core/src/main/java/org/apache/jena/util/LocationMapper.java#L188 > > Wrong location manager? We have a custom PrefixMapper, but from the first look line #188 doesn't look related either: https://github.com/AtomGraph/Web-Client/blob/master/src/main/java/com/atomgraph/client/locator/PrefixMapper.java#L188 Or is it? > > Look at any stacktraces. There is no stack trace. > > Run 4.4.0. Will do soon :) > > > > > What is the cause and does this need to be addressed? > > > > Martynas
