Darrel Schneider created GEODE-9475:
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Summary: ObjectSizer will fail on java 16 and later
Key: GEODE-9475
URL: https://issues.apache.org/jira/browse/GEODE-9475
Project: Geode
Issue Type: Bug
Components: core
Reporter: Darrel Schneider
The instances of org.apache.geode.cache.util.ObjectSizer, SIZE_CLASS_ONCE,
REFLECTION_SIZE, and DEFAULT will not work on java 16 and later because they
call Field.setAccessible which is not allowed under normal conditions starting
with java 16 (see:
https://softwaregarden.dev/en/posts/new-java/illegal-access-in-java-16 ).
To workaround this failure set the JVM command line option:
--illegal-access=permit
These ObjectSizer instances are used in a number of places internally by geode
and can also explicitly be configured by users. Internally they are used by
default for eviction (heap or mem), the wan gateway, and tombstone gc. Most all
regions produce tombstones so that is the most likely point of failure.
The code that calls setAccessible is:
org.apache.geode.internal.size.ObjectTraverser#buildFieldSet and it is not
clear how this code can be changed to do its job without using setAccessible.
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