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https://issues.apache.org/jira/browse/CASSANDRA-18877?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stefan Miklosovic updated CASSANDRA-18877:
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Status: In Progress (was: Patch Available)
> remove bytebuddy / byteman from production classpath and remove compress-lzf
> dependency from build deps
> -------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-18877
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18877
> Project: Cassandra
> Issue Type: Task
> Components: Build
> Reporter: Stefan Miklosovic
> Assignee: Stefan Miklosovic
> Priority: Normal
> Fix For: 5.x
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> I was digging in the project deps and if you compare all libs in "libs" dir
> and all libs in "build/lib/jars", there are indeed some differences which are
> OK however in build/lib/jars there are also libraries for byteman and
> byte-buddy. This is clearly wrong as these dependecies should not be
> accessible from the production code, only from tests.
> The reason they are accessible in prod code is that there is the class
> TestRateLimiter (1). I do not have a clue why that class is in the prod code
> in the first place. The only place it is referenced in is here (2) but that
> byteman script is not loaded anywhere in tests. I was also checking Python
> dtests.
> I think this is some leftover or something like "I will keep it here when I
> need it", but as nobody seems to do, I strongly advocate for removing it and
> making bytebuddy and byteman only test scoped dependencies as it should be.
> A reader who pays attention notices that these dependencies are of provided
> scope which is a trick to have it compilable but not among the libraries in
> the production runtime and it does not do any harm as it is never invoked
> from the production code (if it was, it would fail on missing imports)
> neverthless this is still an issue which should be addressed. We were doing
> something similar with assertj dependency recently.
> The second issue is that there is a dependency on compress-lzf in build
> dependencies. This is not necessary either as that library was removed from
> the repository in (3) but it still somehow leaked to the build process again.
> (1)
> https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/utils/TestRateLimiter.java
> (2)
> https://github.com/apache/cassandra/blob/trunk/test/resources/byteman/mutation_limiter.btm
> (3)
> https://github.com/apache/cassandra/commit/fc92db2b9b56c143516026ba29cecdec37e286bb
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