8000 Illegal Reflective Access in Hotspot.scala · Issue #235 · twitter/util · GitHub
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Illegal Reflective Access in Hotspot.scala #235

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ryanb93 opened this issue Nov 5, 2018 · 3 comments
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Illegal Reflective Access in Hotspot.scala #235

ryanb93 opened this issue Nov 5, 2018 · 3 comments

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@ryanb93
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ryanb93 commented Nov 5, 2018 •
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The following warning is produced when run in a JRE > 9.

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.twitter.jvm.Hotspot (file:/hcom/servers/pros/pros.jar) to field sun.management.ManagementFactoryHelper.jvm
WARNING: Please consider reporting this to the maintainers of com.twitter.jvm.Hotspot
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

util/util-jvm/src/main/scala/com/twitter/jvm/Hotspot.scala

Line 38 in 6f587b3

Class.forName("sun.management.ManagementFactoryHelper").getDeclaredField("jvm")

@kevinoliver
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Thanks. I believe we don't officially support JDK 9+ yet. I think our next version will be JDK 11 which is an LTS release. We have not begun this effort.

@villazon villazon mentioned this issue Apr 23, 2019
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@luciferous
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We'll be forced to tackle this issue when we target JDK 11.

@sjoerd-vogel sjoerd-vogel mentioned this issue Feb 21, 2020
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@hartmut27
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side note: as a work-around - to suppress the warnings in the log, comatible with OpenJDK 14 JVM: Gist

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@luciferous @kevinoliver @ryanb93 @hartmut27
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