# Exception while Connection **URL:** \ **Category:** Elasticsearch\ **Created:** [May 25, 2012, 7:37am UTC](https://discuss.elastic.co/t/exception-while-connection/7858 "2012-05-25T07:37:17Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![vijuitech](https://avatars.discourse-cdn.com/v4/letter/v/bcef8e/32.png) [@vijuitech](https://discuss.elastic.co/u/vijuitech)\ **Post date:** [May 25, 2012, 7:37am UTC](https://discuss.elastic.co/t/exception-while-connection/7858/1 "2012-05-25T07:37:17Z")
Hi, I am getting this exception while establishing the connection using Transport client. I have added all the Lucene jar files assoiated with it 2012-05-25 12:46:50.027 [WARN] org.elasticsearch.transport.netty:119 - [Lilandra Neramani] Exception caught on netty layer [[id: 0x01f78 541, /100.08.1.22:63804 =\> /100.08.1.22:9300]] java.lang.NoClassDefFoundError: org/apache/lucene/analysis/Analyzer at org.elasticsearch.search.internal.InternalSearchHit.readFrom(InternalSearchHit.java: 461) at org.elasticsearch.search.internal.InternalSearchHit.readSearchHit(InternalSearchHit.java: 442) at org.elasticsearch.search.internal.InternalSearchHits.readFrom(InternalSearchHits.java: 220) at org.elasticsearch.search.internal.InternalSearchHits.readFrom(InternalSearchHits.java: 200) at org.elasticsearch.search.internal.InternalSearchHits.readSearchHits(InternalSearchHits.java: 194) at org.elasticsearch.search.internal.InternalSearchResponse.readFrom(InternalSearchResponse.java: 86) at org.elasticsearch.search.internal.InternalSearchResponse.readInternalSearchResponse(InternalSearchResponse.java: 80) at org.elasticsearch.action.search.SearchResponse.readFrom(SearchResponse.java: 284) at org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java: 254) at org.elasticsearch.transport.netty.MessageChannelHandler.process(MessageChannelHandler.java: 233) at org.elasticsearch.transport.netty.MessageChannelHandler.callDecode(MessageChannelHandler.java: 141) at org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java: 95) at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java: 75) at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java: 558) at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java: 553) at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java: 268) at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java: 255) at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java: 343) at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java: 274) at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java: 194) at org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java: 102) at org.elasticsearch.common.netty.util.internal.DeadLockProofWorker $1.run(DeadLockProofWorker.java:42) at java.util.concurrent.ThreadPoolExecutor $Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.ClassNotFoundException: org.apache.lucene.analysis.Analyzer at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 25 more ---
**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\ **Post date:** [May 29, 2012, 6:25pm UTC](https://discuss.elastic.co/t/exception-while-connection/7858/2 "2012-05-29T18:25:48Z")
Which version are you using? If you added the Lucene jars, then they should be there... On Fri, May 25, 2012 at 9:37 AM, George Viju [vijuitech@gmail.com](mailto:vijuitech@gmail.com) wrote: > Hi, > I am getting this exception while establishing the connection > using Transport client. I have added all the Lucene jar files > assoiated with it > > 2012-05-25 12:46:50.027 [WARN] org.elasticsearch.transport.netty:119 - > [Lilandra Neramani] Exception caught on netty layer [[id: 0x01f78 > 541, /100.08.1.22:63804 =\> /100.08.1.22:9300]] > java.lang.NoClassDefFoundError: org/apache/lucene/analysis/Analyzer > at > > org.elasticsearch.search.internal.InternalSearchHit.readFrom(InternalSearchHit.java: > 461) > at > > org.elasticsearch.search.internal.InternalSearchHit.readSearchHit(InternalSearchHit.java: > 442) > at > > org.elasticsearch.search.internal.InternalSearchHits.readFrom(InternalSearchHits.java: > 220) > at > > org.elasticsearch.search.internal.InternalSearchHits.readFrom(InternalSearchHits.java: > 200) > at > > org.elasticsearch.search.internal.InternalSearchHits.readSearchHits(InternalSearchHits.java: > 194) > at > > org.elasticsearch.search.internal.InternalSearchResponse.readFrom(InternalSearchResponse.java: > 86) > at > > org.elasticsearch.search.internal.InternalSearchResponse.readInternalSearchResponse(InternalSearchResponse.java: > 80) > at > > org.elasticsearch.action.search.SearchResponse.readFrom(SearchResponse.java: > 284) > at > > org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java: > 254) > at > > org.elasticsearch.transport.netty.MessageChannelHandler.process(MessageChannelHandler.java: > 233) > at > > org.elasticsearch.transport.netty.MessageChannelHandler.callDecode(MessageChannelHandler.java: > 141) > at > > org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java: > 95) > at > > org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java: > 75) > at > > org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java: > 558) > at > > org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java: > 553) > at > > org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java: > 268) > at > > org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java: > 255) > at > > org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java: > 343) > at > > org.elasticsearch.common.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java: > 274) > at > > org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java: > 194) > at > > org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java: > 102) > at > org.elasticsearch.common.netty.util.internal.DeadLockProofWorker > $1.run(DeadLockProofWorker.java:42) > at java.util.concurrent.ThreadPoolExecutor > $Worker.runTask(Unknown Source) > at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown > Source) > at java.lang.Thread.run(Unknown Source) > Caused by: java.lang.ClassNotFoundException: > org.apache.lucene.analysis.Analyzer > at java.net.URLClassLoader$1.run(Unknown Source) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(Unknown Source) > at java.lang.ClassLoader.loadClass(Unknown Source) > at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) > at java.lang.ClassLoader.loadClass(Unknown Source) > ... 25 more ---
**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, 3:26am UTC](https://discuss.elastic.co/t/exception-while-connection/7858/3 "2017-07-06T03:26:32Z")