Hi Tommy,
Please run your program with JVM option `--illegal-access=debug` added,
then more detail warning message will be shown. Also, it would be good to
submit a JIRA issue and attach a standalone runnable sample code, which can
help us to verify whether our fix works or not.
At last, thanks for your reporting the issue ;-)
Cheers,
Daniel.Sun
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Apache Groovy committer & PMC member
Blog: http://blog.sunlan.me
Twitter: @daniel_sun
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