# Error: Unable to find driver class via URLClassLoader in given driver jars

**URL:** <https://discuss.elastic.co/t/error-unable-to-find-driver-class-via-urlclassloader-in-given-driver-jars/215254>\
**Category:** Logstash\
**Created:** [January 16, 2020, 7:10am UTC](https://discuss.elastic.co/t/error-unable-to-find-driver-class-via-urlclassloader-in-given-driver-jars/215254 "2020-01-16T07:10:22Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![pyerunka](https://avatars.discourse-cdn.com/v4/letter/p/d6d6ee/32.png) [@pyerunka](https://discuss.elastic.co/u/pyerunka)\
**Post date:** [January 16, 2020, 7:10am UTC](https://discuss.elastic.co/t/error-unable-to-find-driver-class-via-urlclassloader-in-given-driver-jars/215254/1 "2020-01-16T07:10:22Z")

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Hello,  
I am trying run config file using logstash. It is giving below error:

> Error: Unable to find driver class via URLClassLoader in given driver jars:  
> Java::oracle.jdbc.driver.OracleDriver and Java::oracle.jdbc.driver.OracleDriver  
> Exception: LogStash::PluginLoadingError

My logstash config file look like:

> input {  
> jdbc {  
> jdbc\_driver\_library =\> "E:\oracle\product\12.2.0\client\_1\jdbc\ojdbc8.jar"  
> jdbc\_driver\_class =\> "Java::oracle.jdbc.driver.OracleDriver"  
> jdbc\_connection\_string =\> "connection\_string\_with\_hostname\_and\_password"  
> jdbc\_user =\> "username"  
> jdbc\_password =\> "\*\*\*\*\*\*"  
> jdbc\_fetch\_size =\> "10000"  
> statement\_filepath =\> "path for sql file statement"  
> last\_run\_metadata\_path =\> "E:/usr/share/logstash/last\_run\_metadata/.query.sql"  
> }  
> }  
> filter{  
> mutate{  
> convert=\> {  
> contentid=\>"string"  
> }  
> }  
> }  
> output{  
> elasticsearch {  
> hosts =\> "localhost:9200"  
> index =\> "new\_database"  
> }  
> }

Regards,  
Priyanka

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<div class="post-metadata">

**Author:** ![tennaen](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tennaen/32/87293_2.png) [@tennaen](https://discuss.elastic.co/u/tennaen)\
**Post date:** [January 16, 2020, 10:32am UTC](https://discuss.elastic.co/t/error-unable-to-find-driver-class-via-urlclassloader-in-given-driver-jars/215254/2 "2020-01-16T10:32:05Z")

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I had similar issue, but with postgres driver. I moved driver to $LOGSTASH\_HOME/logstash-core/lib/jars and commented out jdbc\_driver\_library

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [February 13, 2020, 10:32am UTC](https://discuss.elastic.co/t/error-unable-to-find-driver-class-via-urlclassloader-in-given-driver-jars/215254/3 "2020-02-13T10:32:10Z")

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