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JHOVE doesn't handle chained command line flags properly #412
referenced this issue
Mar 21, 2019
JCommander seems indeed a well-supported library to do that. It has no extra-dependencies, is Apache 2-0 license, requires Java 8.
Another library that appears when searching is picocli: no extra-dependencies, Apache 2.0 license, works with Java 5. The comparison , made by the author itself, insists in the fact that it can be integrated as source (no dependency at all) and it Supports for clustered POSIX short options, which is what this issue is about...