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https://issues.apache.org/jira/browse/CASSANDRA-14752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17520738#comment-17520738
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Ekaterina Dimitrova commented on CASSANDRA-14752:
-------------------------------------------------
So Jenkins failed with some weird rpm errors. I realized I didn't use the image
used for CI but one built more recently so there might be some differences
causing troubles. Pushed with the right image, nightlies connection issues but
those errors I saw before are gone. I wanted to be sure about them as CircleCI
does not test our packaging, only Jenkins.
I pushed CircleCI runs for all three branches, still running:
[3.11
CircleCI|https://app.circleci.com/pipelines/github/ekaterinadimitrova2/cassandra/1525/workflows/86e5bb0d-2e14-472e-a9f3-312b24ac1a38]
4.0
[j8|https://app.circleci.com/pipelines/github/ekaterinadimitrova2/cassandra/1526/workflows/9855f9f5-4543-4fa6-a2a9-11ec0718f1e4],
[j11|https://app.circleci.com/pipelines/github/ekaterinadimitrova2/cassandra/1526/workflows/e4dbf043-aaf3-471a-bae6-931676df893c]
trunk
[j8|https://app.circleci.com/pipelines/github/ekaterinadimitrova2/cassandra/1527/workflows/81685d1c-5349-4f44-b39b-d655ccb00cee],
[j11|https://app.circleci.com/pipelines/github/ekaterinadimitrova2/cassandra/1527/workflows/efbb02f0-f6fd-4d8f-92d1-404f1699d7b0]
> serializers/BooleanSerializer.java is using static bytebuffers which may
> cause problem for subsequent operations
> ----------------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-14752
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14752
> Project: Cassandra
> Issue Type: Bug
> Components: Legacy/Core
> Reporter: Varun Barala
> Assignee: Ekaterina Dimitrova
> Priority: Normal
> Fix For: 3.11.x, 4.0.x, 4.x
>
> Attachments: patch, patch-modified
>
>
> [https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/serializers/BooleanSerializer.java#L26]
> It has two static Bytebuffer variables:-
> {code:java}
> private static final ByteBuffer TRUE = ByteBuffer.wrap(new byte[]{1});
> private static final ByteBuffer FALSE = ByteBuffer.wrap(new byte[]{0});{code}
> What will happen if the position of these Bytebuffers is being changed by
> some other operations? It'll affect other subsequent operations. -IMO Using
> static is not a good idea here.-
> A potential place where it can become problematic:
> [https://github.com/apache/cassandra/blob/cassandra-2.1.13/src/java/org/apache/cassandra/db/marshal/AbstractCompositeType.java#L243]
> Since we are calling *`.remaining()`* It may give wrong results _i.e 0_ if
> these Bytebuffers have been used previously.
> Solution:
>
> [https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/serializers/BooleanSerializer.java#L42]
> Every time we return new bytebuffer object. Please do let me know If there
> is a better way. I'd like to contribute. Thanks!!
> {code:java}
> public ByteBuffer serialize(Boolean value)
> {
> return (value == null) ? ByteBufferUtil.EMPTY_BYTE_BUFFER
> : value ? ByteBuffer.wrap(new byte[] {1}) : ByteBuffer.wrap(new byte[] {0});
> // false
> }
> {code}
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