[Jython-bugs] [issue2679] Illegal reflective access by org.python.modules.gc

[Jeff A. <re...@bu...>]

New submission from Jeff Allen <ja...@fa...>:

test_gc_jy produces warnings in Java 9

WARNING: Illegal reflective access by org.python.modules.gc (file:.../jython-dev.jar) to field java.util.ArrayList.elementData

A cut-down version of the test only running GCTests_Jy_TraverseByReflection is a good basis for debugging. Launching the test as:
dist\bin\jython -J--illegal-access=debug -m test.regrtest -v test_gc_jy
will show where the illegal access happens, at the call to setAccessible in org.python.modules.gc.traverseByReflectionIntern.

I'm peeling this off from #2656 in order to park it. I don't consider this a blocker for 2.7.2, but it is a long-term Java roadmap issue. Before the available JVMs prohibit access to private fields (at the moment they just produce an ugly message), our implementation of gc will need a re-think. The ugly message is not encountered unless the optional gc module is invoked, which must mean the user is prepared for a tussle with JVM internals.

----------
components: Library
keywords: Java Roadmap, test failure causes
messages: 11950
nosy: jeff.allen
priority: normal
severity: minor
status: open
title: Illegal reflective access by org.python.modules.gc
type: behaviour
versions: Jython 2.7

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Jython tracker <re...@bu...>
<http://bugs.jython.org/issue2679>
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