Caused by: java.lang.NullPointerException
at java.util.Hashtable$Entry.setValue (Hashtable.java:1286)
at org.apache.maven.model.interpolation.StringVisitorModelInterpolator$ModelVisitor.visit (StringVisitorModelInterpolator.java:1429)
Seems to be resolved in 3.8.4. I'm now seeing a proper error message:
Resolving expression: '${project.version}': Detected the following recursive expression cycle in 'project.version': [version, revision] @ org.example:foo:${revision}, /experiment/pom.xml -> [Help 2]
S. Cohen, K. Stratos, M. Collins, D. Foster, and L. Ungar. Proceedings of the 50th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), page 223--231. Jeju Island, Korea, Association for Computational Linguistics, (July 2012)
H. Poon, and P. Domingos. Proceedings of the 2009 Conference on Empirical Methods in Natural Language Processing: Volume 1 - Volume 1, page 1--10. Stroudsburg, PA, USA, Association for Computational Linguistics, (2009)
A. Hotho, R. Jäschke, C. Schmitz, and G. Stumme. Proceedings of the 3rd European Semantic Web Conference, volume 4011 of LNCS, page 411-426. Budva, Montenegro, Springer, (June 2006)