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Posted to issues@hbase.apache.org by "Duo Zhang (Jira)" <ji...@apache.org> on 2022/04/10 14:36:00 UTC
[jira] [Commented] (HBASE-22172) Suppress Java 11 reflective access warnings
[ https://issues.apache.org/jira/browse/HBASE-22172?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17520178#comment-17520178 ]
Duo Zhang commented on HBASE-22172:
-----------------------------------
We have already upgrade to netty 4.1.73.Final, but AFAICT, I've seen these warnings everywhere after I upgrade to java11 for most of the projects, so maybe it is not a big deal?
> Suppress Java 11 reflective access warnings
> -------------------------------------------
>
> Key: HBASE-22172
> URL: https://issues.apache.org/jira/browse/HBASE-22172
> Project: HBase
> Issue Type: Sub-task
> Components: java, scripts
> Reporter: Sakthi
> Assignee: Sakthi
> Priority: Minor
> Labels: jdk11
> Attachments: hbase-22172.master.001.patch
>
>
> While running a Java 8 compiled hbase on Java 11 system, I found the following warnings being thrown. I think we can add the "--add-opens" flag to HBASE_OPTS (if the jdk version is 11) to suppress this warning.
> {code:java}
> WARNING: An illegal reflective access operation has occurred
> WARNING: Illegal reflective access by org.apache.hadoop.hbase.util.UnsafeAvailChecker (file:/Users/jatsakthi/test/HBASE_TEST_AREA/hbase-3.0.0-SNAPSHOT/lib/hbase-common-3.0.0-SNAPSHOT.jar) to method java.nio.Bits.unaligned()
> WARNING: Please consider reporting this to the maintainers of org.apache.hadoop.hbase.util.UnsafeAvailChecker
> WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
> WARNING: All illegal access operations will be denied in a future release
> {code}
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