# Is the transport Java API open source too? **URL:** \ **Category:** Elasticsearch\ **Created:** [December 7, 2016, 2:36pm UTC](https://discuss.elastic.co/t/is-the-transport-java-api-open-source-too/68312 "2016-12-07T14:36:49Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![JonathanAaron](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jonathanaaron/32/24405_2.png) [@JonathanAaron](https://discuss.elastic.co/u/JonathanAaron)\ **Post date:** [December 7, 2016, 2:36pm UTC](https://discuss.elastic.co/t/is-the-transport-java-api-open-source-too/68312/1 "2016-12-07T14:36:49Z")
I'm trying to find the source for the transport client I use in my java app. Where is it located in github? Edit: Looks like when I'm pulling in TransportClient from maven I'm really pulling down, Elasticsearch.jar from the client project, PrebultTransportClient from the client project, transport-netty3-client and transport-netty4-client from the modules project, lang-mustache-client and percolator-client. If I wanted to modify the TransportClient I would have to build out the elasticserach-core project to pull it into my project. ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [December 7, 2016, 2:48pm UTC](https://discuss.elastic.co/t/is-the-transport-java-api-open-source-too/68312/2 "2016-12-07T14:48:24Z")
Here: [https://github.com/elastic/elasticsearch](https://github.com/elastic/elasticsearch) And you can start here: [https://github.com/elastic/elasticsearch/tree/master/client/transport](https://github.com/elastic/elasticsearch/tree/master/client/transport) ---
**Author:** ![JonathanAaron](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jonathanaaron/32/24405_2.png) [@JonathanAaron](https://discuss.elastic.co/u/JonathanAaron)\ **Post date:** [December 7, 2016, 3:27pm UTC](https://discuss.elastic.co/t/is-the-transport-java-api-open-source-too/68312/3 "2016-12-07T15:27:49Z")
Ah, that's great. I just built it. Thank you! ---
**Author:** ![nik9000](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/nik9000/32/44947_2.png) [@nik9000](https://discuss.elastic.co/u/nik9000)\ **Post date:** [December 8, 2016, 2:42pm UTC](https://discuss.elastic.co/t/is-the-transport-java-api-open-source-too/68312/4 "2016-12-08T14:42:48Z")
The trouble with the transport client is that it is the same code as the elasticsearch server. This means that it makes decisions that aren't really right for a library. For instance, it uses log4j2. Not slf4j or some other logigng abstraction. It uses log4j2 directly. Anyway, that is why we're so keen to make a useable java client. Or, at least, we've been keen on it in the past few months. ---
**Author:** ![JonathanAaron](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jonathanaaron/32/24405_2.png) [@JonathanAaron](https://discuss.elastic.co/u/JonathanAaron)\ **Post date:** [December 8, 2016, 8:45pm UTC](https://discuss.elastic.co/t/is-the-transport-java-api-open-source-too/68312/5 "2016-12-08T20:45:17Z")
I see. That explains why I had to add log4j to my test project. Thanks! ---
**Author:** ![JonathanAaron](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jonathanaaron/32/24405_2.png) [@JonathanAaron](https://discuss.elastic.co/u/JonathanAaron)\ **Post date:** [December 12, 2016, 7:12pm UTC](https://discuss.elastic.co/t/is-the-transport-java-api-open-source-too/68312/6 "2016-12-12T19:12:59Z")
Is this the same TransportClient that I have in my Java Project. It looks like it's just the pre-built Transport client. ---
**Author:** ![JonathanAaron](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jonathanaaron/32/24405_2.png) [@JonathanAaron](https://discuss.elastic.co/u/JonathanAaron)\ **Post date:** [December 12, 2016, 8:22pm UTC](https://discuss.elastic.co/t/is-the-transport-java-api-open-source-too/68312/7 "2016-12-12T20:22:22Z")
So If I modified the TransportClient in elasticsearch/core, how would I build it use in my Java Project? Does any of these projects build out a jar that I get from maven repo? ie: org.elasticsearch.client:transport:5.0.2' ---
**Author:** ![jprante](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jprante/32/44941_2.png) [@jprante](https://discuss.elastic.co/u/jprante)\ **Post date:** [December 13, 2016, 10:21am UTC](https://discuss.elastic.co/t/is-the-transport-java-api-open-source-too/68312/8 "2016-12-13T10:21:07Z")
> [@JonathanAaron](#): > > So If I modified the TransportClient in elasticsearch/core The answer depends on your modification. What did you modify and why? Just out of curiosity. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [January 10, 2017, 10:21am UTC](https://discuss.elastic.co/t/is-the-transport-java-api-open-source-too/68312/9 "2017-01-10T10:21:27Z")
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