# Logstash 1.5.3 file plugin over JDK1.6

**URL:** <https://discuss.elastic.co/t/logstash-1-5-3-file-plugin-over-jdk1-6/62147>\
**Category:** Logstash\
**Created:** [October 4, 2016, 10:52am UTC](https://discuss.elastic.co/t/logstash-1-5-3-file-plugin-over-jdk1-6/62147 "2016-10-04T10:52:03Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![pons](https://avatars.discourse-cdn.com/v4/letter/p/f475e1/32.png) [@pons](https://discuss.elastic.co/u/pons)\
**Post date:** [October 4, 2016, 10:52am UTC](https://discuss.elastic.co/t/logstash-1-5-3-file-plugin-over-jdk1-6/62147/1 "2016-10-04T10:52:03Z")

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I am getting following error when i try to start in Windows 7

←[33mfailed to open C:\temp\AuditTest.log: cannot link Java class RubyFileExt {:level=\>:warn}←[0m

_config entry_

input {  
file {  
path =\> "C:\temp\AuditTest.log"  
start\_position =\> beginning  
}  
}

output {  
stdout { }  
}

_command to invoke logstash :_ **logstash -f logstash-catalina.config**

## Any one had faced this issue

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [October 6, 2016, 7:27am UTC](https://discuss.elastic.co/t/logstash-1-5-3-file-plugin-over-jdk1-6/62147/2 "2016-10-06T07:27:37Z")

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Any reason you are using such an old LS version with an old JVM?

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<div class="post-metadata">

**Author:** ![pons](https://avatars.discourse-cdn.com/v4/letter/p/f475e1/32.png) [@pons](https://discuss.elastic.co/u/pons)\
**Post date:** [October 6, 2016, 9:52am UTC](https://discuss.elastic.co/t/logstash-1-5-3-file-plugin-over-jdk1-6/62147/3 "2016-10-06T09:52:13Z")

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We are trying to implement logstash for an existing application which runs on JDK1.6.

JDK 1.5.3 is the latest version runs on JDK1.6

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 4:35am UTC](https://discuss.elastic.co/t/logstash-1-5-3-file-plugin-over-jdk1-6/62147/4 "2017-07-06T04:35:27Z")

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