# JAVA API connection issues

**URL:** <https://discuss.elastic.co/t/java-api-connection-issues/11783>\
**Category:** Elasticsearch\
**Created:** [May 2, 2013, 5:04pm UTC](https://discuss.elastic.co/t/java-api-connection-issues/11783 "2013-05-02T17:04:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Randylle](https://avatars.discourse-cdn.com/v4/letter/r/d2c977/32.png) [@Randylle](https://discuss.elastic.co/u/Randylle)\
**Post date:** [May 2, 2013, 5:04pm UTC](https://discuss.elastic.co/t/java-api-connection-issues/11783/1 "2013-05-02T17:04:00Z")

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have tried several times to connect to Elasticsearch via the JAVA API on NetBeans and get an EventsDispatchThread exception. Any ideas.

I have used the below methods and my program hangs:

Node node = nBuilder.build().start();

OR

Builder settings = ImmutableSettings.settingsBuilder();  
settings.build();  
NodeBuilder nBuilder = nodeBuilder().settings(settings);  
if (testing)  
nBuilder.local(true);  
//start it!  
Node node = nBuilder.build().start();

OR

Node node = nodeBuilder().clusterName("Node Test").client(true).node();

OR

```
    Node node = nodeBuilder().local(true).
           settings(ImmutableSettings.settingsBuilder(). 
           put("network.host", "127.0.0.1").
           put("index.number_of_shards", 4). 
           put("index.number_of_replicas", 1). 
            build()).build().start(); 

```

Any ideas?

---

<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:** [July 6, 2017, 2:38am UTC](https://discuss.elastic.co/t/java-api-connection-issues/11783/2 "2017-07-06T02:38:38Z")

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