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**Category:** Elasticsearch\
**Created:** [January 21, 2015, 4:24pm UTC](https://discuss.elastic.co/t/noclassdeffounderror-when-using-the-html-strip-char-filter/21754 "2015-01-21T16:24:26Z")\
**Posts on this page:** 2\
**Page:** 1
**Author:**  [@Christophe\_Coevoet](https://discuss.elastic.co/u/Christophe_Coevoet)\
**Post date:** [January 21, 2015, 4:24pm UTC](https://discuss.elastic.co/t/noclassdeffounderror-when-using-the-html-strip-char-filter/21754/1 "2015-01-21T16:24:26Z")
Hello,
I'm using the html\_strip char filter in my mapping, and this gives me a
NoClassDefFoundError when indexing documents. See
[https://gist.github.com/stof/fb8c0daa6dd7d6f2fae6](https://gist.github.com/stof/fb8c0daa6dd7d6f2fae6) for a reproducing script
(and the output I got)
The same config used to work on an older 1.3 version of ElasticSearch.
Environment:
ElasticSearch 1.3.7 (installed from the apt repository) with the
mapper-attachment and marvel plugins enabled
java: OpenJDK Runtime Environment (IcedTea 2.5.3)
(7u71-2.5.3-0ubuntu0.14.04.1)
OS: Ubuntu 14.04
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---
**Author:**  [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 12:37am UTC](https://discuss.elastic.co/t/noclassdeffounderror-when-using-the-html-strip-char-filter/21754/2 "2017-07-06T00:37:32Z")
Closed on July 6, 2017, 12:37am UTC