[BUG] - Oml2OwlTask fails silently if input files are missing.

[NicolasRouquette]

Description

A clear and concise description of what the bug is.

If an IRI cannot be resolved to a file, Oml2OwlTask should fail with an error about the unresolved IRI.

Steps to Reproduce

See this Travis-CI build log: https://travis-ci.org/github/opencaesar/jpl-vocabularies/builds/735884111

> Task :omlToOwl
Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.5/userguide/command_line_interface.html#sec:command_line_warnings
BUILD SUCCESSFUL in 2m 8s
2 actionable tasks: 2 executed
The command "./gradlew omlToOwl" exited with 0.
0.00s$ echo `pwd`
/home/travis/build/opencaesar/jpl-vocabularies
The command "echo `pwd`" exited with 0.
0.01s$ find . -name 'mission.*'
./src/oml/imce.jpl.nasa.gov/foundation/mission.oml
./build/owl/src/oml/imce.jpl.nasa.gov/foundation/mission.owl
The command "find . -name 'mission.*'" exited with 0.
0.01s$ find . -name '80000-6-kindsOfQuantities.*'
The command "find . -name '80000-6-kindsOfQuantities.*'" exited with 0.
0.01s$ find . -name 'bundle.*'
./src/oml/imce.jpl.nasa.gov/foundation/bundle.oml
The command "find . -name 'bundle.*'" exited with 0.
3.81s$ ./gradlew owlReason
...
> Task :owlReason FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':owlReason'.
> OWLOntologyCreationIOException: java.io.FileNotFoundException: /home/travis/build/opencaesar/jpl-vocabularies/build/owl/src/oml/imce.jpl.nasa.gov/foundation/bundle.owl (No such file or directory)

The source file, ./src/oml/imce.jpl.nasa.gov/foundation/bundle.oml, contained:

vocabulary bundle <http://imce.jpl.nasa.gov/foundation/bundle> with # as foundation-bundle {
    includes <http://imce.jpl.nasa.gov/foundation/project>
    includes <http://iso.org/80000-6-kindsOfQuantities>
}

Unfortunately, due to Travis' build cache, the dependency was not refreshed and consequently there was a missing file as evidenced by the find command above:

$ find . -name '80000-6-kindsOfQuantities.*'
The command "find . -name '80000-6-kindsOfQuantities.*'" exited with 0.

The Oml2OwlTask should have reported a failure, i.e., the IRI <http://iso.org/80000-6-kindsOfQuantities> failed to resolve to a file. Instead, it ignored the error and did not map the OML source, ./src/oml/imce.jpl.nasa.gov/foundation/bundle.oml to OWL.

Steps to reproduce the behavior:

• [ ] Step 1
• [ ] Step 2
• [ ] Step 3

Expected Behavior

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Additional Context

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Relevant screenshots

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[melaasar]

I think this problem would be caught now by the OmlValidator tool which is invoked internally by the Owl Adapter. Can you please retry this scenario and close if unreproducible?

[NicolasRouquette]

I agree that the oml validator will detect this problem.