Packaging error (mvn shade)? EnvTDB context not initialized

[cfaeth]

I am currently encountering the following issue:

compile.sh works properly
run.sh with any class using Jena may result in the following error:

Exception in thread "Thread-0" java.lang.ExceptionInInitializerError
	at org.acoli.conll.rdf.Format2RDF.conll2model(Format2RDF.java:236)
	at org.acoli.conll.rdf.CoNLL2RDF.conll2model(CoNLL2RDF.java:37)
	at org.acoli.conll.rdf.CoNLLStreamExtractor.processSentenceStream(CoNLLStreamExtractor.java:108)
	at org.acoli.conll.rdf.CoNLLRDFComponent.run(CoNLLRDFComponent.java:41)
	at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: java.lang.NullPointerException
	at org.apache.jena.tdb.sys.EnvTDB.processGlobalSystemProperties(EnvTDB.java:33)
	at org.apache.jena.tdb.TDB.init(TDB.java:252)
	at org.apache.jena.tdb.sys.InitTDB.start(InitTDB.java:29)
	at org.apache.jena.sys.JenaSystem.lambda$init$2(JenaSystem.java:116)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
	at org.apache.jena.sys.JenaSystem.forEach(JenaSystem.java:191)
	at org.apache.jena.sys.JenaSystem.forEach(JenaSystem.java:168)
	at org.apache.jena.sys.JenaSystem.init(JenaSystem.java:114)
	at org.apache.jena.rdf.model.ModelFactory.<clinit>(ModelFactory.java:49)
	... 5 more

It seems, the TDB environment is not initialized resulting in a null context. This may be machine specific. When googling, I found the following thread which suggests that this may be caused by repackaging with maven shade: (https://stackoverflow.com/questions/42166073/a-simple-jena-example-not-working)

Curiously, when using fintan-backend, no such issue occurs, even when using the exact same pipeline, so it might be caused by a slightly different build process. So using Fintan directly is a valid workaround for those facing this issue

Please try to reproduce and fix.