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https://issues.apache.org/jira/browse/DERBY-6932?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rick Hillegas updated DERBY-6932:
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Attachment: ClientConnection.patch
Attaching Peter Levart's solution for ClientConnection, also found at
http://cr.openjdk.java.net/~plevart/misc/Cleaner/derby/ClientConnection_finalize2cleaner.patch
> Migrate finalization to the new Cleaner-based pattern introduced by JDK 9
> build 167
> -----------------------------------------------------------------------------------
>
> Key: DERBY-6932
> URL: https://issues.apache.org/jira/browse/DERBY-6932
> Project: Derby
> Issue Type: Improvement
> Components: JDBC, Network Client, Network Server
> Affects Versions: 10.14.0.0
> Reporter: Rick Hillegas
> Attachments: ClientConnection.patch
>
>
> As of build 167, JDK 9 deprecated the finalize() method. This produces
> deprecation warnings when compiling several Derby classes. See
> https://issues.apache.org/jira/browse/DERBY-6856?focusedCommentId=15990011&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15990011
> . The recommended fix is a non-trivial mini-project, viz., to migrate to a
> new finalization pattern based on a newly added Java 9 class,
> java.lang.ref.Cleaner. Peter Levart kindly mocked up the fix for one affected
> Derby class (ClientConnection). See
> http://cr.openjdk.java.net/~plevart/misc/Cleaner/derby/ClientConnection_finalize2cleaner.patch
> Further discussion can be found on the following open-jdk email thread:
> http://mail.openjdk.java.net/pipermail/core-libs-dev/2017-May/047417.html
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