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Title: [Java] DenseUnionWriter#setPosition fails with NullPointerException · Issue #399 · apache/arrow-java · GitHub

Open Graph Title: [Java] DenseUnionWriter#setPosition fails with NullPointerException · Issue #399 · apache/arrow-java

X Title: [Java] DenseUnionWriter#setPosition fails with NullPointerException · Issue #399 · apache/arrow-java

Description: The writer always iterates through all BaseWriters, and an array of 128 BaseWriters is allocated. So if you do not have 128 typeIds and do not touch all of them, setPosition will give you an exception. Reporter: David Li / @lidavidm Note...

Open Graph Description: The writer always iterates through all BaseWriters, and an array of 128 BaseWriters is allocated. So if you do not have 128 typeIds and do not touch all of them, setPosition will give you an except...

X Description: The writer always iterates through all BaseWriters, and an array of 128 BaseWriters is allocated. So if you do not have 128 typeIds and do not touch all of them, setPosition will give you an except...

Opengraph URL: https://github.com/apache/arrow-java/issues/399

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#938https://github.com/apache/arrow-java/pull/938
[Java] DenseUnionWriter#setPosition fails with NullPointerExceptionhttps://github.com/apache/arrow-java/issues/399#top
#938https://github.com/apache/arrow-java/pull/938
Type: bugSomething isn't workinghttps://github.com/apache/arrow-java/issues?q=state%3Aopen%20label%3A%22Type%3A%20bug%22
good first issueGood for newcomershttps://github.com/apache/arrow-java/issues?q=state%3Aopen%20label%3A%22good%20first%20issue%22
help wantedExtra attention is neededhttps://github.com/apache/arrow-java/issues?q=state%3Aopen%20label%3A%22help%20wanted%22
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on May 1, 2020https://github.com/apache/arrow-java/issues/399#issue-2697987957
David Lihttps://issues.apache.org/jira/browse/ARROW-8665
@lidavidmhttps://github.com/lidavidm
ARROW-8665https://issues.apache.org/jira/browse/ARROW-8665
migration documentationhttps://github.com/apache/arrow/issues/14542
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