# Is Elastic 2.2 Java Client Backward compatible? **URL:** \ **Category:** Elasticsearch\ **Created:** [February 22, 2016, 8:24pm UTC](https://discuss.elastic.co/t/is-elastic-2-2-java-client-backward-compatible/42427 "2016-02-22T20:24:17Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![yana2301](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/yana2301/32/133248_2.png) [@yana2301](https://discuss.elastic.co/u/yana2301)\ **Post date:** [February 22, 2016, 8:24pm UTC](https://discuss.elastic.co/t/is-elastic-2-2-java-client-backward-compatible/42427/1 "2016-02-22T20:24:17Z")
Hi All, I've upgraded to elastic 2.2 java client and got following problems when try to connect to Elastic 1.7: 1.transport client doesn't start. I create transport client as: Settings settings = settingsBuilder() .put("[cluster.name](http://cluster.name)", clusterName) .build(); transportClient = TransportClient.builder().settings(settings).build(); stream(InetAddress.getAllByName(host)) .forEach(address -\> transportClient.addTransportAddress(new InetSocketTransportAddress(address, port))); client seems to be created with no errors, but I get exception when send request: 2016-02-22 20:16:29 DEBUG (NettyUtils.java:104) - using gathering [true] 2016-02-22 20:16:29 DEBUG (TransportClientNodesService.java:120) - [Rock Python] node\_sampler\_interval[5s] 2016-02-22 20:16:29 DEBUG (NettyInternalESLogger.java:58) - Using select timeout of 500 2016-02-22 20:16:29 DEBUG (NettyInternalESLogger.java:58) - Epoll-bug workaround enabled = false 2016-02-22 20:16:30 DEBUG (TransportClientNodesService.java:177) - [Rock Python] adding address [{#transport#-1}{10.2.2.141}{10.2.2.141:9300}] 2016-02-22 20:16:30 DEBUG (NettyTransport.java:914) - [Rock Python] connected to node [{#transport#-1}{10.2.2.141}{10.2.2.141:9300}] 2016-02-22 20:16:30 WARN (NettyTransport.java:771) - [Rock Python] exception caught on transport layer [[id: 0x9eba5b38, /10.10.0.4:64748 =\> /10.2.2.141:9300]], closing connection java.lang.NullPointerException at org.elasticsearch.transport.netty.MessageChannelHandler.handleException(MessageChannelHandler.java:206) at org.elasticsearch.transport.netty.MessageChannelHandler.handlerResponseError(MessageChannelHandler.java:201) at org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:136) at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296) at org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462) at org.jboss.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443) at org.jboss.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303) at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255) at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108) at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:337) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89) at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) 2016-02-22 20:16:30 DEBUG (NettyTransport.java:1078) - [Rock Python] disconnecting from [{#transport#-1}{10.2.2.141}{10.2.2.141:9300}], channel closed event In debug status code is 3 in MessageChannelHandler. Should I pass additional parameters or java client is not compatible with older versions? 1. I cannot send nested or filter, filter aggregation like this fails with parse error: "filter" : { "filter" : { "bool" : { "must" : { "nested" : { "query" : { "or" : { "filters" : [ { "term" : { "nested\_array.double\_full" : "125.89935" } }, { "term" : { "nested\_array.double\_full" : "466.30414" } } ] } }, "path" : "nested\_array" } } } } if I change query to filter -- it works,but there is no way to build such query in java. If I use or query outside of nested -- it works too. 3.I see that or and and filters are deprecated and I should use boolQuery instead. How can I build or filter with boolQuery? ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [February 22, 2016, 8:40pm UTC](https://discuss.elastic.co/t/is-elastic-2-2-java-client-backward-compatible/42427/2 "2016-02-22T20:40:34Z")
No. It's not compatible. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 5, 2017, 11:13pm UTC](https://discuss.elastic.co/t/is-elastic-2-2-java-client-backward-compatible/42427/4 "2017-07-05T23:13:51Z")