FusekiMainCMD

Version

4.6.1

Question

I use Maven to compile the source code and no error, but run FusekiMainCmd error, related information is as follows.

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/jena/ext/com/google/common/cache/RemovalNotification
	at org.apache.jena.atlas.lib.cache.CacheGuava.<init>(CacheGuava.java:41)
	at org.apache.jena.atlas.lib.CacheFactory.createCache(CacheFactory.java:31)
	at org.apache.jena.enhanced.EnhGraph.<init>(EnhGraph.java:41)
	at org.apache.jena.rdf.model.impl.ModelCom.<init>(ModelCom.java:76)
	at org.apache.jena.rdf.model.impl.ModelCom.<init>(ModelCom.java:73)
	at org.apache.jena.rdf.model.ModelFactory.createDefaultModel(ModelFactory.java:91)
	at org.apache.jena.vocabulary.DC_11.<clinit>(DC_11.java:29)
	at org.apache.jena.shared.PrefixMapping.<clinit>(PrefixMapping.java:221)
	at org.apache.jena.sparql.ARQConstants.<clinit>(ARQConstants.java:114)
	at org.apache.jena.query.ARQ.init(ARQ.java:627)
	at org.apache.jena.sparql.system.InitARQ.start(InitARQ.java:29)
	at org.apache.jena.base.module.Subsystem.lambda$initialize$2(Subsystem.java:117)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
	at org.apache.jena.base.module.Subsystem.forEach(Subsystem.java:193)
	at org.apache.jena.base.module.Subsystem.forEach(Subsystem.java:169)
	at org.apache.jena.base.module.Subsystem.initialize(Subsystem.java:115)
	at org.apache.jena.sys.JenaSystem.init(JenaSystem.java:88)
	at arq.cmdline.CmdARQ.<clinit>(CmdARQ.java:30)
	at org.apache.jena.fuseki.main.cmds.FusekiMainCmd.main(FusekiMainCmd.java:47)

My environment is

mvn 3.8.6, jdk 11-16

I tried to search for “org/apache/jena/ext/com/google/common/cache/RemovalNotification” in idea and only found import in AsyncClaimingCacheImplGuava, I can confirm that it was loaded properly

Can you help me determine what the problem is

[LorenzBuehmann]

With IntelliJ IDE you can just disable the jena-shaded-guava module and it will use the dependency from public Maven repo.

[afs]

Sorry it’s not working cleanly first time.

As well as excluding jena-shaded-guava as @kinow now notes, close or don’t import, the top level project. It ends up with two routes to everything which can confuse IDEs.

Which IDE do you use? We can expand the build instructions for the next person who encounters these issues.