# JMX CompositeDataSupport and Map values

**URL:** <https://discuss.elastic.co/t/jmx-compositedatasupport-and-map-values/95680>\
**Category:** Logstash\
**Created:** [August 3, 2017, 9:26am UTC](https://discuss.elastic.co/t/jmx-compositedatasupport-and-map-values/95680 "2017-08-03T09:26:32Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![karunakarsingh](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/karunakarsingh/32/46822_2.png) [@karunakarsingh](https://discuss.elastic.co/u/karunakarsingh)\
**Post date:** [August 3, 2017, 9:26am UTC](https://discuss.elastic.co/t/jmx-compositedatasupport-and-map-values/95680/1 "2017-08-03T09:26:32Z")

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Hi,

Using the logstash jmx plugin, I'm retrieving a CompositeDataSupport Object which is then pushed to Elasticsearch. The problem is that the value pushed is not an array converted as a String but more something which looks like the address of the object in memory.

I was wondering how will it be possible to map this as an ArrayType in ElasticSearch.

Details:  
This is the value of the metric\_value\_string field which ends up in the repository

Java::JavaxManagementOpenmbean::CompositeDataSupport:0x3d17bc85, \<Java::JavaUtil::Collections::UnmodifiableRandomAccessList:1869951550 ["Compressed Class Space"]\>=\>#Java::JavaxManagementOpenmbean::CompositeDataSupport:0x7da3c749, \<Java::JavaUtil::Collections::UnmodifiableRandomAccessList:953021984 ["Metaspace"]\>=\>#Java::JavaxManagementOpenmbean::CompositeDataSupport:0xf1f5ccf, \<Java::JavaUtil::Collections::UnmodifiableRandomAccessList:780515424 ["G1 Old Gen"]\>=\>#Java::JavaxManagementOpenmbean::CompositeDataSupport:0x31a989f5, \<Java::JavaUtil::Collections::UnmodifiableRandomAccessList:-258349661 ["G1 Eden Space"]\>=\>#Java::JavaxManagementOpenmbean::CompositeDataSupport:0x14f91950, \<Java::JavaUtil::Collections::UnmodifiableRandomAccessList:-433555538 ["Code Cache"]\>=\>#Java::JavaxManagementOpenmbean::CompositeDataSupport:0x630358a5

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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:** [August 31, 2017, 9:26am UTC](https://discuss.elastic.co/t/jmx-compositedatasupport-and-map-values/95680/2 "2017-08-31T09:26:51Z")

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Closed on August 31, 2017, 9:26am UTC

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