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Apache Lucene open-source search software
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Luca Cavanna 4eaebee686
Guard FieldExistsQuery against null pointers (#11794) 
FieldExistsQuery checks if there are points for a certain field, and then retrieves the
corresponding point values. When all documents that had points for a certain field have
been deleted from a certain segments, as well as merged away, field info may report
that there are points yet the corresponding point values are null.

With this change we add a null check in FieldExistsQuery. Long term, we will likely want
to prevent this situation from happening.

Relates #11393
 		2022-09-20 15:38:38 +02:00
.github GitHub Workflows security hardening (#11789) 2022-09-20 11:28:07 +02:00
buildSrc Retry gradle wrapper download on http 500 and 503. (#11766) 2022-09-13 10:30:20 +02:00
dev-docs a bit of clarification about GitHub Milestone 2022-08-28 13:52:58 +09:00
dev-tools LUCENE-10365 Wizard changes contributed from Solr (#591) 2022-09-20 12:07:42 +02:00
gradle GH-11172: remove WindowsDirectory and native subproject. (#11774) 2022-09-15 16:22:46 +02:00
help LUCENE-10532: remove @Slow annotation (#832) 2022-05-09 23:03:55 -04:00
lucene Guard FieldExistsQuery against null pointers (#11794) 2022-09-20 15:38:38 +02:00
.asf.yaml .asf.yaml 2022-08-16 20:02:47 +09:00
.dir-locals.el LUCENE-9322: Add Lucene90 codec, including VectorFormat 2020-10-18 07:49:36 -04:00
.git-blame-ignore-revs LUCENE-9570: code reformatting [record rev]. 2021-01-05 13:44:42 +01:00
.gitattributes LUCENE-10305: Ensure line endings of versions.props is LF 2021-12-11 10:10:44 +09:00
.gitignore LUCENE-9920: Remove binary gradle-wrapper.jar from the repository 2021-04-10 16:08:39 +02:00
.hgignore LUCENE-2792: add FST impl 2010-12-12 15:36:08 +00:00
.lift.toml Disable liftbot, we have our own tools 2022-05-05 22:27:57 +02:00
CONTRIBUTING.md update contributing guide for GH issue (#11716) 2022-08-25 04:06:09 +09:00
LICENSE.txt LUCENE-10163 Move LICENSE and NOTICE file to top level (#388) 2021-10-18 01:24:11 +02:00
NOTICE.txt LUCENE-10613: Clean up outdated NOTICE.txt information concerning morfologik 2022-06-13 19:50:54 +02:00
README.md remove a link to old Jira in README. 2022-09-01 00:41:56 +09:00
build.gradle GH-11172: remove WindowsDirectory and native subproject. (#11774) 2022-09-15 16:22:46 +02:00
gradlew fail clearly on too-new JDK (#819) 2022-04-21 09:22:26 -04:00
gradlew.bat Fix JVM error branch logic. (#835) 2022-04-25 14:33:56 +02:00
settings.gradle GH-11172: remove WindowsDirectory and native subproject. (#11774) 2022-09-15 16:22:46 +02:00
versions.lock #11720 Upgrade randomizedtesting to 2.8.1 (#11721) 2022-08-26 00:01:57 +02:00
versions.props #11720 Upgrade randomizedtesting to 2.8.1 (#11721) 2022-08-26 00:01:57 +02:00

README.md

Apache Lucene

Lucene Logo

Apache Lucene is a high-performance, full-featured text search engine library written in Java.

Build Status

Online Documentation

This README file only contains basic setup instructions. For more comprehensive documentation, visit:

Building

Basic steps:

  1. Install OpenJDK 17 (exactly this version).
  2. Clone Lucene's git repository (or download the source distribution).
  3. Run gradle launcher script (gradlew).

We'll assume that you know how to get and set up the JDK - if you don't, then we suggest starting at https://jdk.java.net/ and learning more about Java, before returning to this README.

See Contributing Guide for details.

Contributing

Bug fixes, improvements and new features are always welcome! Please review the Contributing to Lucene Guide for information on contributing.

Discussion and Support