When running with Java 9 I get the following warning: WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.bulenkov.darcula.DarculaLaf (file:/home/td/coding/jmeter/lib/darcula.jar) to field javax.swing.text.html.HTMLEditorKit.DEFAULT_STYLES_KEY WARNING: Please consider reporting this to the maintainers of com.bulenkov.darcula.DarculaLaf WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release
https://github.com/bulenkov/Darcula/issues/41
This issue has been migrated to GitHub: https://github.com/apache/jmeter/issues/4640