# \[Elasticsearch Filter Plugin\] index\_not\_found\_exception java.lang.NullPointerException: null

**URL:** https://discuss.elastic.co/t/elasticsearch-filter-plugin-index-not-found-exception-java-lang-nullpointerexception-null/235358
**Category:** Logstash
**Created:** [June 2, 2020, 2:58pm UTC](https://discuss.elastic.co/t/elasticsearch-filter-plugin-index-not-found-exception-java-lang-nullpointerexception-null/235358 "2020-06-02T14:58:09Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)
#### Post date: [June 2, 2020, 3:23pm UTC](https://discuss.elastic.co/t/elasticsearch-filter-plugin-index-not-found-exception-java-lang-nullpointerexception-null/235358/2 "2020-06-02T15:23:34Z")

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I believe the NPE is due to a conditional trying to compare a non-existent field with a number. See [here](https://discuss.elastic.co/t/comparing-number-in-conditionnal-event-treatement/217043/5).

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