# NoClassDefFoundError InternalLoggerFactory on tomcat start **URL:** \ **Category:** Elasticsearch\ **Created:** [September 28, 2018, 6:36am UTC](https://discuss.elastic.co/t/noclassdeffounderror-internalloggerfactory-on-tomcat-start/150296 "2018-09-28T06:36:41Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![Anjana\_Surendrababu](https://avatars.discourse-cdn.com/v4/letter/a/b19c9b/32.png) [@Anjana\_Surendrababu](https://discuss.elastic.co/u/Anjana_Surendrababu)\ **Post date:** [September 28, 2018, 6:36am UTC](https://discuss.elastic.co/t/noclassdeffounderror-internalloggerfactory-on-tomcat-start/150296/1 "2018-09-28T06:36:41Z")
My project was using a very old version of elasticsearch (1.7.1). I am trying to upgrade it to 6.4.0 Following are the jars I added newly. elasticsearch-6.4.0.jar elasticsearch-core-6.4.0.jar elasticsearch-x-content-6.4.0.jar transport-6.4.0.jar transport-netty4-client-6.4.0.jar log4j-api-2.11.0.jar log4j-core-2.11.0.jar lucene-core-7.4.0.jar reindex-client-6.4.0.jar percolator-client-6.4.0.jar lang-mustache-client-6.4.0.jar parent-join-client-6.4.0.jar rank-eval-client-6.4.0.jar hppc-0.8.1.jar During my tomcat start I am getting this exception java.lang.NoClassDefFoundError: io/netty/util/internal/logging/InternalLoggerFactory at org.elasticsearch.transport.Netty4Plugin.(Netty4Plugin.java:48) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.elasticsearch.plugins.PluginsService.loadPlugin(PluginsService.java:602) at org.elasticsearch.plugins.PluginsService.(PluginsService.java:112) at org.elasticsearch.client.transport.TransportClient.newPluginService(TransportClient.java:108) at org.elasticsearch.client.transport.TransportClient.buildTemplate(TransportClient.java:133) at org.elasticsearch.client.transport.TransportClient.(TransportClient.java:283) at org.elasticsearch.transport.client.PreBuiltTransportClient.(PreBuiltTransportClient.java:128) at org.elasticsearch.transport.client.PreBuiltTransportClient.(PreBuiltTransportClient.java:114) at org.elasticsearch.transport.client.PreBuiltTransportClient.(PreBuiltTransportClient.java:104) at com.virima.indexing.IndexUtils.initializeESConnection(IndexUtils.java:61) And my initilization code is as below Settings settings = Settings.builder() .put("cluster.name", "myClusterName").build(); TransportClient client = new PreBuiltTransportClient(settings) .addTransportAddress(new TransportAddress(InetAddress.getByName("host1"), 9300)) .addTransportAddress(new TransportAddress(InetAddress.getByName("host2"), 9300)); ---
**Author:** ![Mark\_Harwood](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mark_harwood/32/10538_2.png) [@Mark\_Harwood](https://discuss.elastic.co/u/Mark_Harwood)\ **Post date:** [September 28, 2018, 8:13am UTC](https://discuss.elastic.co/t/noclassdeffounderror-internalloggerfactory-on-tomcat-start/150296/2 "2018-09-28T08:13:40Z")
See [https://www.elastic.co/blog/elasticsearch-the-server](https://www.elastic.co/blog/elasticsearch-the-server) ---
**Author:** ![Anjana\_Surendrababu](https://avatars.discourse-cdn.com/v4/letter/a/b19c9b/32.png) [@Anjana\_Surendrababu](https://discuss.elastic.co/u/Anjana_Surendrababu)\ **Post date:** [September 28, 2018, 8:20am UTC](https://discuss.elastic.co/t/noclassdeffounderror-internalloggerfactory-on-tomcat-start/150296/3 "2018-09-28T08:20:00Z")
I went through the blog, I am sorry but I dint understand how it helps me in this ---
**Author:** ![Mark\_Harwood](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mark_harwood/32/10538_2.png) [@Mark\_Harwood](https://discuss.elastic.co/u/Mark_Harwood)\ **Post date:** [September 28, 2018, 8:41am UTC](https://discuss.elastic.co/t/noclassdeffounderror-internalloggerfactory-on-tomcat-start/150296/5 "2018-09-28T08:41:50Z")
> [@Anjana\_Surendrababu](#): > > I am sorry but I dint understand how it helps me in this Apologies, I assumed you were trying to start a full elasticsearch service inside Tomcat rather than just the elasticsearch client. We are evolving Java clients away from use of the TransportClient so that we can reduce these sorts of dependencies on core elasticsearch server classes. The High Level Rest Client is the new replacement for the TransportClient and the docs for managing dependencies are [here](https://www.elastic.co/guide/en/elasticsearch/client/java-rest/current/java-rest-high.html). ---
**Author:** ![Anjana\_Surendrababu](https://avatars.discourse-cdn.com/v4/letter/a/b19c9b/32.png) [@Anjana\_Surendrababu](https://discuss.elastic.co/u/Anjana_Surendrababu)\ **Post date:** [September 28, 2018, 10:14am UTC](https://discuss.elastic.co/t/noclassdeffounderror-internalloggerfactory-on-tomcat-start/150296/6 "2018-09-28T10:14:09Z")
Thanks for the response. So you are suggesting me using REST Client will be better than debugging this with TransportClient? ---
**Author:** ![Mark\_Harwood](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mark_harwood/32/10538_2.png) [@Mark\_Harwood](https://discuss.elastic.co/u/Mark_Harwood)\ **Post date:** [September 28, 2018, 10:51am UTC](https://discuss.elastic.co/t/noclassdeffounderror-internalloggerfactory-on-tomcat-start/150296/7 "2018-09-28T10:51:37Z")
It will put you on the right path. Transport client will be [deprecated in 7.0](https://www.elastic.co/guide/en/elasticsearch/client/java-api/master/transport-client.html) ---
**Author:** ![Anjana\_Surendrababu](https://avatars.discourse-cdn.com/v4/letter/a/b19c9b/32.png) [@Anjana\_Surendrababu](https://discuss.elastic.co/u/Anjana_Surendrababu)\ **Post date:** [October 3, 2018, 10:12am UTC](https://discuss.elastic.co/t/noclassdeffounderror-internalloggerfactory-on-tomcat-start/150296/8 "2018-10-03T10:12:50Z")
I am using high level rest client now, I have lucene 7.1 in my classpath, but I am getting the following error Exception in thread "main" java.lang.NoSuchFieldError: LUCENE\_6\_0\_0 at org.elasticsearch.Version.(Version.java:47) at org.elasticsearch.common.io.stream.StreamInput.(StreamInput.java:111) at org.elasticsearch.common.bytes.BytesReference$MarkSupportingStreamInputWrapper.(BytesReference.java:242) at org.elasticsearch.common.bytes.BytesReference$MarkSupportingStreamInputWrapper.(BytesReference.java:236) at org.elasticsearch.common.bytes.BytesReference.streamInput(BytesReference.java:76) at org.elasticsearch.action.admin.indices.create.CreateIndexRequest.innerToXContent(CreateIndexRequest.java:554) at org.elasticsearch.action.admin.indices.create.CreateIndexRequest.toXContent(CreateIndexRequest.java:542) ---
**Author:** ![Mark\_Harwood](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mark_harwood/32/10538_2.png) [@Mark\_Harwood](https://discuss.elastic.co/u/Mark_Harwood)\ **Post date:** [October 3, 2018, 10:16am UTC](https://discuss.elastic.co/t/noclassdeffounderror-internalloggerfactory-on-tomcat-start/150296/9 "2018-10-03T10:16:20Z")
> [@Anjana\_Surendrababu](#): > > UCENE\_6\_0\_0 Looks like your Lucene version is incorrect. ---
**Author:** ![Anjana\_Surendrababu](https://avatars.discourse-cdn.com/v4/letter/a/b19c9b/32.png) [@Anjana\_Surendrababu](https://discuss.elastic.co/u/Anjana_Surendrababu)\ **Post date:** [October 3, 2018, 10:25am UTC](https://discuss.elastic.co/t/noclassdeffounderror-internalloggerfactory-on-tomcat-start/150296/10 "2018-10-03T10:25:14Z")
Dependecy file says Lucene-core 7.4.0, that only I added ---
**Author:** ![Mark\_Harwood](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mark_harwood/32/10538_2.png) [@Mark\_Harwood](https://discuss.elastic.co/u/Mark_Harwood)\ **Post date:** [October 3, 2018, 10:29am UTC](https://discuss.elastic.co/t/noclassdeffounderror-internalloggerfactory-on-tomcat-start/150296/11 "2018-10-03T10:29:15Z")
> [@Anjana\_Surendrababu](#): > > java.lang.NoSuchFieldError: LUCENE\_6\_0\_0 > at org.elasticsearch.Version.(Version.java:47) If your classpath is setup correctly and you don't have other Lucene versions floating around then the above error should not happen because you should see [this](https://github.com/apache/lucene-solr/blob/branch_7_4/lucene/core/src/java/org/apache/lucene/util/Version.java#L39) ---
**Author:** ![Anjana\_Surendrababu](https://avatars.discourse-cdn.com/v4/letter/a/b19c9b/32.png) [@Anjana\_Surendrababu](https://discuss.elastic.co/u/Anjana_Surendrababu)\ **Post date:** [October 4, 2018, 10:52am UTC](https://discuss.elastic.co/t/noclassdeffounderror-internalloggerfactory-on-tomcat-start/150296/12 "2018-10-04T10:52:48Z")
Hi, that issue seems to be fine, Any help on this [How to add multiple types to an index Elasticsearch 6.4](https://discuss.elastic.co/t/how-to-add-multiple-types-to-an-index-elasticsearch-6-4/151032) ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [November 1, 2018, 10:52am UTC](https://discuss.elastic.co/t/noclassdeffounderror-internalloggerfactory-on-tomcat-start/150296/13 "2018-11-01T10:52:50Z")
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