Hi All,
I get the following error when running "sbt test" (scalatest with matchers) that helps with unit testing a method written in scala. The method creates an instance of Elasticsearch REST High-Level client followed by a SearchRequest query to the ES cluster. When I execute the unit test, I see the following error. To troubleshoot I did check for the jars in my classpath (sbt > show test:full-classpath) and have the following jars available. Yet the ES connection to the cluster cannot be established to execute the search query.
-
httpasyncclient-4.1.2.jar
-
httpclient-4.5.3.jar
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httpcore-nio-4.4.5.jar
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Elasticsearch version: 6.2.3 (elasticsearch-rest-high-level-client-6.2.3.jar)
Unhandled java.lang.NoClassDefFoundError: Could not initialize class org.apache.http.impl.nio.conn.ManagedNHttpClientConnectionFactory
java.lang.NoClassDefFoundError: Could not initialize class org.apache.http.impl.nio.conn.ManagedNHttpClientConnectionFactory
at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager$InternalConnectionFactory.<init>(PoolingNHttpClientConnectionManager.java:553)
at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.<init>(PoolingNHttpClientConnectionManager.java:163)
at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.<init>(PoolingNHttpClientConnectionManager.java:147)
at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.<init>(PoolingNHttpClientConnectionManager.java:119)
at org.apache.http.impl.nio.client.HttpAsyncClientBuilder.build(HttpAsyncClientBuilder.java:668)
at org.elasticsearch.client.RestClientBuilder$2.run(RestClientBuilder.java:218)
at org.elasticsearch.client.RestClientBuilder$2.run(RestClientBuilder.java:215)
at java.security.AccessController.doPrivileged(Native Method)
at org.elasticsearch.client.RestClientBuilder.createHttpClient(RestClientBuilder.java:215)
at org.elasticsearch.client.RestClientBuilder.access$000(RestClientBuilder.java:42)
at org.elasticsearch.client.RestClientBuilder$1.run(RestClientBuilder.java:187)
at org.elasticsearch.client.RestClientBuilder$1.run(RestClientBuilder.java:184)
at java.security.AccessController.doPrivileged(Native Method)
at org.elasticsearch.client.RestClientBuilder.build(RestClientBuilder.java:184)
at org.elasticsearch.client.RestHighLevelClient.<init>(RestHighLevelClient.java:200)
at org.elasticsearch.client.RestHighLevelClient.<init>(RestHighLevelClient.java:192)
at xxxxxx.RestManager.<init>(RestManager.scala:28)
My rest high-level client scala code looks like the following:
class RestManager extends Serializable {
val builder = RestClient.builder(
new HttpHost("node1", 9200, "http"))
builder.setRequestConfigCallback(new RequestConfigCallback() {
override def customizeRequestConfig(requestConfigBuilder: RequestConfig.Builder) : RequestConfig.Builder =
{
requestConfigBuilder.setConnectTimeout(10000).setSocketTimeout(60000)
}
})
.setMaxRetryTimeoutMillis(60000)
val client: RestHighLevelClient = new RestHighLevelClient(builder)
}
object restClient extends RestManager