java.lang.VerifyError: Bad type on operand stack

[UriShohet]

Hello,

I'm using esclient_2.10-1.3.0, Scala 2.10.4, Java 1.7.0_65-b17, elasticsearch 1.2.2

I'm new to ElasticSearch and I don't know whether I'm doing something wrong or not, but I got this error:

Exception in thread "main" java.lang.VerifyError: Bad type on operand stack
Exception Details:
  Location:
    org/scalastuff/esclient/ActionMagnet$$anon$3.execute(Lorg/elasticsearch/client/Client;Lorg/elasticsearch/action/ActionRequest;)Lscala/concurrent/Future; @30: invokeinterface
  Reason:
    Type 'org/elasticsearch/action/admin/cluster/ClusterAction' (current frame, stack[1]) is not assignable to 'org/elasticsearch/action/Action'
  Current Frame:
    bci: @30
    flags: { }
    locals: { 'org/scalastuff/esclient/ActionMagnet$$anon$3', 'org/elasticsearch/client/Client', 'org/elasticsearch/action/ActionRequest', 'scala/concurrent/Promise' }
    stack: { 'org/elasticsearch/client/ClusterAdminClient', 'org/elasticsearch/action/admin/cluster/ClusterAction', 'org/elasticsearch/action/ActionRequest', 'org/elasticsearch/action/ActionListener' }
  Bytecode:
    0000000: b200 17b6 001b 4e2b b900 2101 00b9 0027
    0000010: 0100 2ab4 0029 2cb2 002c 2db6 0030 b900
    0000020: 3504 002d b900 3b01 00b0               

    at org.scalastuff.esclient.ActionMagnet$.magnet(ActionMagnet.scala:155)
    at org.scalastuff.esclient.ActionMagnet$.<init>(ActionMagnet.scala:98)
    at org.scalastuff.esclient.ActionMagnet$.<clinit>(ActionMagnet.scala)
    at ....
    at ....

My code looks like

import org.scalastuff.esclient.ESClient
....
  val esClient = nodeBuilder.clusterName("myClusterName").client(true).node.client
....
....
    val bulkRequest = esClient.prepareBulk.setListenerThreaded(true)
    val builders = companies.map(c => esClient.prepareIndex(indexName, typeName, c.getId).setSource(c.toJSON.toString))
    builders.toList.foreach(bulkRequest.add)
    val bulkResponse: Future[BulkResponse] =
        esClient.execute(bulkRequest.request())

Please tell me if you need more details from me.

Thanks in advance for your help.

Uri