Test error

[loomlike]

mvn test gets following error:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-shade-plugin:3.2.1:shade (spark-shade-jar) on project accumulo-spark-datasource: Error creating shaded jar: /data/home/jumin/git/masc/connector/zipfs/target/classes (Is a directory) -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :accumulo-spark-datasource

[eisber]

from which directory did you execute this?

[loomlike]

connector, same as the build command.