NullPointerException when running from command line

[bpross-52n]

Describe the bug
When running test suites (e.g. ets-wfs02) from the command line and adding <entry key="acceptMediaType">application/zip</entry> to the test-run-props.xml to generate HTML reports, a NullPointerException happens in the HTMLReporter class. This happens because it is tried to copy resources from a jar file to the file system, see here.

To Reproduce
Steps to reproduce the behavior:

1. Run a test suite (e.g. ets-wfs02) from the command line, add <entry key="acceptMediaType">application/zip</entry> to the test-run-props.xml
2. HTML reports are generated, but not zipped, a NullPointerException happens

Expected behavior
HTML reports are generated and zipped, no exception happens.

Additional context
See also this issue. The HTML generation works when running the test suite from within a servlet container, as the resources folder exists physically in the TEAM Engine webapp folder.