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https://issues.apache.org/jira/browse/ARROW-16129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17518232#comment-17518232
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helmi commented on ARROW-16129:
-------------------------------
Thanks [~lidavidm]
> [Java] Illegal reflective access operation on JDK 11
> ----------------------------------------------------
>
> Key: ARROW-16129
> URL: https://issues.apache.org/jira/browse/ARROW-16129
> Project: Apache Arrow
> Issue Type: Sub-task
> Components: Java
> Affects Versions: 7.0.0
> Environment: Distributor ID: Ubuntu
> Description: Ubuntu 20.04.4 LTS
> Release: 20.04
> Codename: focal
> Reporter: helmi
> Priority: Blocker
>
> I'm parsing an arrow stream using the apache arrow java library 7.0.0 and I'm
> seeing this warning:
> {code:java}
> WARNING: An illegal reflective access operation has occurred
> WARNING: Illegal reflective access by org.apache.arrow.memory.util.MemoryUtil
> (file:/home/ubuntu/.m2/repository/org/apache/arrow/arrow-memory-core/7.0.0/arrow-memory-core-7.0.0.jar)
> to field java.nio.Buffer.address
> WARNING: Please consider reporting this to the maintainers of
> org.apache.arrow.memory.util.MemoryUtil
> 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}
> I'm running java from openjdk 11
> {code:java}
> java --version
> openjdk 11.0.12 2021-07-20
> OpenJDK Runtime Environment (build 11.0.12+0-adhoc..source)
> OpenJDK 64-Bit Server VM (build 11.0.12+0-adhoc..source, mixed mode)
> {code}
> When moving to openjdk 17 I'm no longer able to run my code and I'm seeing
> this error
> {code:java}
> Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make
> field long java.nio.Buffer.address accessible: module java.base does not
> "opens java.nio" to unnamed module @315ea6a7
> at java.lang.reflect.AccessibleObject.checkCanSetAccessible
> (AccessibleObject.java:354)
> at java.lang.reflect.AccessibleObject.checkCanSetAccessible
> (AccessibleObject.java:297)
> at java.lang.reflect.Field.checkCanSetAccessible (Field.java:178)
> at java.lang.reflect.Field.setAccessible (Field.java:172)
> at org.apache.arrow.memory.util.MemoryUtil.<clinit> (MemoryUtil.java:84)
> at org.apache.arrow.memory.ArrowBuf.getDirectBuffer (ArrowBuf.java:228)
> at org.apache.arrow.memory.ArrowBuf.nioBuffer (ArrowBuf.java:223)
> at org.apache.arrow.vector.ipc.ReadChannel.readFully (ReadChannel.java:87)
> at org.apache.arrow.vector.ipc.message.MessageSerializer.readMessageBody
> (MessageSerializer.java:727)
> at org.apache.arrow.vector.ipc.message.MessageChannelReader.readNext
> (MessageChannelReader.java:67)
> at org.apache.arrow.vector.ipc.ArrowStreamReader.loadNextBatch
> (ArrowStreamReader.java:145)
> ... {code}
>
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