jena-elephas-io does not pass its test suite with maven-surefire-plugin
v2.20 or v2.20.1. The latest version of the plugin is 2.20.1. we have
been using 2.19.1 until now.
jena-elephas-io uses <parallel>classes</parallel>
This is not specific to Java9 - this is using using java8 to build with
updated plugins [1] - however, v2.20.1+ is required for Java9 [2]
The first error is:
[INFO] Running
org.apache.jena.hadoop.rdf.io.output.trig.TriGBlankNodeOutputTests
[ERROR] Tests run: 16, Failures: 12, Errors: 0, Skipped: 0, Time
elapsed: 1.896 s <<< FAILURE! - in
org.apache.jena.hadoop.rdf.io.output.trig.TriGBlankNodeOutputTests
[ERROR]
output_02[2](org.apache.jena.hadoop.rdf.io.output.trig.TriGBlankNodeOutputTests)
Time elapsed: 0.054 s <<< FAILURE!
java.lang.AssertionError: expected:<1> but was:<0>
at
org.apache.jena.hadoop.rdf.io.output.trig.TriGBlankNodeOutputTests.checkTuples(TriGBlankNodeOutputTests.java:115)
and then several the same for a total of 12 for TriGBlankNodeOutputTests.
Temporarily, we can specifically set the plugin in 2.19.1 but this is
masking the problem, not removing it.
Andy
[1] PR#350
[2] https://cwiki.apache.org/confluence/display/MAVEN/Java+9+-+Jigsaw
