# NPE in SignificanceHeuristicStreams.read while deserializing response (SearchResponse)

**URL:** <https://discuss.elastic.co/t/npe-in-significanceheuristicstreams-read-while-deserializing-response-searchresponse/19891>\
**Category:** Elasticsearch\
**Created:** [September 19, 2014, 8:58pm UTC](https://discuss.elastic.co/t/npe-in-significanceheuristicstreams-read-while-deserializing-response-searchresponse/19891 "2014-09-19T20:58:14Z")\
**Posts on this page:** 14\
**Page:** 1

<div class="post-metadata">

**Author:** ![Felipe\_Hummel](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/felipe_hummel/32/1263_2.png) [@Felipe\_Hummel](https://discuss.elastic.co/u/Felipe_Hummel)\
**Post date:** [September 19, 2014, 8:58pm UTC](https://discuss.elastic.co/t/npe-in-significanceheuristicstreams-read-while-deserializing-response-searchresponse/19891/1 "2014-09-19T20:58:14Z")

</div>

Hey guys, I’m getting NullPointerException while using a _significant\_terms_  
aggregation. It happens in this line:

org.elasticsearch.search.aggregations.bucket.significant.heuristics.SignificanceHeuristicStreams.read(SignificanceHeuristicStreams.java:38)

The error is in the deserialization: _Failed to deserialize response of  
type [org.elasticsearch.action.search.SearchResponse]_  
I’m using the Java API. I just printed the request and manually did it  
through the REST API and everything went fine. It happens only when using  
the Java API.

I'm using ES 1.3.2.

_The printed search request:_

> {  
> "from" : 0,  
> "size" : 6,  
> "timeout" : 30000,  
> "query" : {  
> "filtered" : {  
> "query" : {  
> "query\_string" : {  
> "query" : "ayrton senna",  
> "fields" : ["title^2.0", "description"],  
> "default\_operator" : "and"  
> }  
> },  
> "filter" : {  
> "bool" : {  
> "must" : [ {  
> "range" : {  
> "created\_at" : {  
> "from" : null,  
> "to" : "2014-09-19T20:28:30.000Z",  
> "include\_lower" : true,  
> "include\_upper" : true  
> },  
> "\_cache" : true  
> }  
> }, {  
> "range" : {  
> "published\_at" : {  
> "from" : null,  
> "to" : "2014-09-19T20:28:30.000Z",  
> "include\_lower" : true,  
> "include\_upper" : true  
> },  
> "\_cache" : true  
> }  
> }, {  
> "range" : {  
> "published\_at" : {  
> "from" : "2014-08-20T20:28:30.000Z",  
> "to" : "2014-09-19T20:28:30.000Z",  
> "include\_lower" : true,  
> "include\_upper" : true  
> },  
> "\_cache" : false  
> }  
> } ]  
> }  
> }  
> }  
> },  
> "fields" : ,  
> "aggregations" : {  
> "topics" : {  
> "significant\_terms" : {  
> "field" : "topic\_ids",  
> "size" : 20  
> }  
> }  
> }  
> }

_The complete error stacktrace:_

[ERROR] 2014-09-19 20:29:13.177 c.b.s.SearchServlet -  
org.elasticsearch.transport.TransportSerializationException: Failed to  
deserialize response of type  
[org.elasticsearch.action.search.SearchResponse]  
org.elasticsearch.transport.TransportSerializationException: Failed to  
deserialize response of type  
[org.elasticsearch.action.search.SearchResponse]  
at  
org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java:152)  
at  
org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:127)  
at  
org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)  
at  
org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)  
at  
org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)  
at  
org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:296)  
at  
org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462)  
at  
org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443)  
at  
org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303)  
at  
org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)  
at  
org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)  
at  
org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)  
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:88)  
at  
org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)  
at  
org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)  
at  
org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)  
at  
org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)  
at  
org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)  
at  
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)  
at  
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)  
at java.lang.Thread.run(Thread.java:745)  
Caused by: java.lang.NullPointerException  
at  
org.elasticsearch.search.aggregations.bucket.significant.heuristics.SignificanceHeuristicStreams.read(SignificanceHeuristicStreams.java:38)  
at  
org.elasticsearch.search.aggregations.bucket.significant.SignificantLongTerms.readFrom(SignificantLongTerms.java:126)  
at  
org.elasticsearch.search.aggregations.bucket.significant.SignificantLongTerms$1.readResult(SignificantLongTerms.java:50)  
at  
org.elasticsearch.search.aggregations.bucket.significant.SignificantLongTerms$1.readResult(SignificantLongTerms.java:46)  
at  
org.elasticsearch.search.aggregations.InternalAggregations.readFrom(InternalAggregations.java:190)  
at  
org.elasticsearch.search.aggregations.InternalAggregations.readAggregations(InternalAggregations.java:172)  
at  
org.elasticsearch.search.internal.InternalSearchResponse.readFrom(InternalSearchResponse.java:116)  
at  
org.elasticsearch.search.internal.InternalSearchResponse.readInternalSearchResponse(InternalSearchResponse.java:105)  
at  
org.elasticsearch.action.search.SearchResponse.readFrom(SearchResponse.java:227)  
at  
org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java:150)  
... 23 more

_The (Scala) code I used to generate the request :_

```
  val request = ....

```

> val topicsAggregation =  
> significantTerms("topics").field("topic\_ids").size(20)  
> request.addAggregation(topicsAggregation)

_The code to retrieve the aggregation (although it seems it never reaches  
here):_

> val terms: SignificantTerms = response.getAggregations.get("topics")

Any ideas?

Thanks!

Felipe Hummel

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<div class="post-metadata">

**Author:** ![Felipe\_Hummel](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/felipe_hummel/32/1263_2.png) [@Felipe\_Hummel](https://discuss.elastic.co/u/Felipe_Hummel)\
**Post date:** [September 19, 2014, 9:21pm UTC](https://discuss.elastic.co/t/npe-in-significanceheuristicstreams-read-while-deserializing-response-searchresponse/19891/2 "2014-09-19T21:21:06Z")

</div>

I missed a part of the error message:

[WARN] 2014-09-19 20:29:13.176 o.e.t.netty - [Sigyn] Message not fully read

> (response) for [61] handler  
> org.elasticsearch.action.TransportActionNodeProxy$1@2e6201d0, error  
> [false], resetting

On Friday, September 19, 2014 5:58:15 PM UTC-3, Felipe Hummel wrote:

> Hey guys, I’m getting NullPointerException while using a  
> _significant\_terms_ aggregation. It happens in this line:
> 
> org.elasticsearch.search.aggregations.bucket.significant.heuristics.SignificanceHeuristicStreams.read(SignificanceHeuristicStreams.java:38)
> 
> The error is in the deserialization: _Failed to deserialize response of  
> type [org.elasticsearch.action.search.SearchResponse]_  
> I’m using the Java API. I just printed the request and manually did it  
> through the REST API and everything went fine. It happens only when using  
> the Java API.
> 
> I'm using ES 1.3.2.
> 
> _The printed search request:_
> 
> > {  
> > "from" : 0,  
> > "size" : 6,  
> > "timeout" : 30000,  
> > "query" : {  
> > "filtered" : {  
> > "query" : {  
> > "query\_string" : {  
> > "query" : "ayrton senna",  
> > "fields" : ["title^2.0", "description"],  
> > "default\_operator" : "and"  
> > }  
> > },  
> > "filter" : {  
> > "bool" : {  
> > "must" : [ {  
> > "range" : {  
> > "created\_at" : {  
> > "from" : null,  
> > "to" : "2014-09-19T20:28:30.000Z",  
> > "include\_lower" : true,  
> > "include\_upper" : true  
> > },  
> > "\_cache" : true  
> > }  
> > }, {  
> > "range" : {  
> > "published\_at" : {  
> > "from" : null,  
> > "to" : "2014-09-19T20:28:30.000Z",  
> > "include\_lower" : true,  
> > "include\_upper" : true  
> > },  
> > "\_cache" : true  
> > }  
> > }, {  
> > "range" : {  
> > "published\_at" : {  
> > "from" : "2014-08-20T20:28:30.000Z",  
> > "to" : "2014-09-19T20:28:30.000Z",  
> > "include\_lower" : true,  
> > "include\_upper" : true  
> > },  
> > "\_cache" : false  
> > }  
> > } ]  
> > }  
> > }  
> > }  
> > },  
> > "fields" : ,  
> > "aggregations" : {  
> > "topics" : {  
> > "significant\_terms" : {  
> > "field" : "topic\_ids",  
> > "size" : 20  
> > }  
> > }  
> > }  
> > }
> 
> _The complete error stacktrace:_
> 
> [ERROR] 2014-09-19 20:29:13.177 c.b.s.SearchServlet -  
> org.elasticsearch.transport.TransportSerializationException: Failed to  
> deserialize response of type  
> [org.elasticsearch.action.search.SearchResponse]  
> org.elasticsearch.transport.TransportSerializationException: Failed to  
> deserialize response of type  
> [org.elasticsearch.action.search.SearchResponse]  
> at  
> org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java:152)  
> at  
> org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:127)  
> at  
> org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)  
> at  
> org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)  
> at  
> org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)  
> at  
> org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:296)  
> at  
> org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462)  
> at  
> org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443)  
> at  
> org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303)  
> at  
> org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)  
> at  
> org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)  
> at  
> org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)  
> 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:88)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)  
> at  
> org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)  
> at  
> org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)  
> at  
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)  
> at  
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)  
> at java.lang.Thread.run(Thread.java:745)  
> Caused by: java.lang.NullPointerException  
> at  
> org.elasticsearch.search.aggregations.bucket.significant.heuristics.SignificanceHeuristicStreams.read(SignificanceHeuristicStreams.java:38)  
> at  
> org.elasticsearch.search.aggregations.bucket.significant.SignificantLongTerms.readFrom(SignificantLongTerms.java:126)  
> at  
> org.elasticsearch.search.aggregations.bucket.significant.SignificantLongTerms$1.readResult(SignificantLongTerms.java:50)  
> at  
> org.elasticsearch.search.aggregations.bucket.significant.SignificantLongTerms$1.readResult(SignificantLongTerms.java:46)  
> at  
> org.elasticsearch.search.aggregations.InternalAggregations.readFrom(InternalAggregations.java:190)  
> at  
> org.elasticsearch.search.aggregations.InternalAggregations.readAggregations(InternalAggregations.java:172)  
> at  
> org.elasticsearch.search.internal.InternalSearchResponse.readFrom(InternalSearchResponse.java:116)  
> at  
> org.elasticsearch.search.internal.InternalSearchResponse.readInternalSearchResponse(InternalSearchResponse.java:105)  
> at  
> org.elasticsearch.action.search.SearchResponse.readFrom(SearchResponse.java:227)  
> at  
> org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java:150)  
> ... 23 more
> 
> _The (Scala) code I used to generate the request :_
> 
> ```
> val request = ....
> 
> ```
> 
> > val topicsAggregation =  
> > significantTerms("topics").field("topic\_ids").size(20)  
> > request.addAggregation(topicsAggregation)
> 
> _The code to retrieve the aggregation (although it seems it never reaches  
> here):_
> 
> > val terms: SignificantTerms = response.getAggregations.get("topics")
> 
> Any ideas?
> 
> Thanks!
> 
> Felipe Hummel

--  
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For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout).

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<div class="post-metadata">

**Author:** ![Felipe\_Hummel](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/felipe_hummel/32/1263_2.png) [@Felipe\_Hummel](https://discuss.elastic.co/u/Felipe_Hummel)\
**Post date:** [September 19, 2014, 9:34pm UTC](https://discuss.elastic.co/t/npe-in-significanceheuristicstreams-read-while-deserializing-response-searchresponse/19891/3 "2014-09-19T21:34:03Z")

</div>

More information. All 5 ES nodes are on 1.3.2 (checked with curl  
localhost:9200/) with java 1.7.0\_65. Client machine is also on 1.3.2  
and 1.7.0\_65

On Friday, September 19, 2014 6:21:06 PM UTC-3, Felipe Hummel wrote:

> I missed a part of the error message:
> 
> [WARN] 2014-09-19 20:29:13.176 o.e.t.netty - [Sigyn] Message not fully
> 
> > read (response) for [61] handler  
> > org.elasticsearch.action.TransportActionNodeProxy$1@2e6201d0, error  
> > [false], resetting
> 
> On Friday, September 19, 2014 5:58:15 PM UTC-3, Felipe Hummel wrote:
> 
> > Hey guys, I’m getting NullPointerException while using a  
> > _significant\_terms_ aggregation. It happens in this line:
> > 
> > org.elasticsearch.search.aggregations.bucket.significant.heuristics.SignificanceHeuristicStreams.read(SignificanceHeuristicStreams.java:38)
> > 
> > The error is in the deserialization: _Failed to deserialize response of  
> > type [org.elasticsearch.action.search.SearchResponse]_  
> > I’m using the Java API. I just printed the request and manually did it  
> > through the REST API and everything went fine. It happens only when using  
> > the Java API.
> > 
> > I'm using ES 1.3.2.
> > 
> > _The printed search request:_
> > 
> > > {  
> > > "from" : 0,  
> > > "size" : 6,  
> > > "timeout" : 30000,  
> > > "query" : {  
> > > "filtered" : {  
> > > "query" : {  
> > > "query\_string" : {  
> > > "query" : "ayrton senna",  
> > > "fields" : ["title^2.0", "description"],  
> > > "default\_operator" : "and"  
> > > }  
> > > },  
> > > "filter" : {  
> > > "bool" : {  
> > > "must" : [ {  
> > > "range" : {  
> > > "created\_at" : {  
> > > "from" : null,  
> > > "to" : "2014-09-19T20:28:30.000Z",  
> > > "include\_lower" : true,  
> > > "include\_upper" : true  
> > > },  
> > > "\_cache" : true  
> > > }  
> > > }, {  
> > > "range" : {  
> > > "published\_at" : {  
> > > "from" : null,  
> > > "to" : "2014-09-19T20:28:30.000Z",  
> > > "include\_lower" : true,  
> > > "include\_upper" : true  
> > > },  
> > > "\_cache" : true  
> > > }  
> > > }, {  
> > > "range" : {  
> > > "published\_at" : {  
> > > "from" : "2014-08-20T20:28:30.000Z",  
> > > "to" : "2014-09-19T20:28:30.000Z",  
> > > "include\_lower" : true,  
> > > "include\_upper" : true  
> > > },  
> > > "\_cache" : false  
> > > }  
> > > } ]  
> > > }  
> > > }  
> > > }  
> > > },  
> > > "fields" : ,  
> > > "aggregations" : {  
> > > "topics" : {  
> > > "significant\_terms" : {  
> > > "field" : "topic\_ids",  
> > > "size" : 20  
> > > }  
> > > }  
> > > }  
> > > }
> > 
> > _The complete error stacktrace:_
> > 
> > [ERROR] 2014-09-19 20:29:13.177 c.b.s.SearchServlet -  
> > org.elasticsearch.transport.TransportSerializationException: Failed to  
> > deserialize response of type  
> > [org.elasticsearch.action.search.SearchResponse]  
> > org.elasticsearch.transport.TransportSerializationException: Failed to  
> > deserialize response of type  
> > [org.elasticsearch.action.search.SearchResponse]  
> > at  
> > org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java:152)  
> > at  
> > org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:127)  
> > at  
> > org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)  
> > at  
> > org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)  
> > at  
> > org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)  
> > at  
> > org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:296)  
> > at  
> > org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462)  
> > at  
> > org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443)  
> > at  
> > org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303)  
> > at  
> > org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)  
> > at  
> > org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)  
> > at  
> > org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)  
> > 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:88)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)  
> > at  
> > org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)  
> > at  
> > org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)  
> > at  
> > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)  
> > at  
> > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)  
> > at java.lang.Thread.run(Thread.java:745)  
> > Caused by: java.lang.NullPointerException  
> > at  
> > org.elasticsearch.search.aggregations.bucket.significant.heuristics.SignificanceHeuristicStreams.read(SignificanceHeuristicStreams.java:38)  
> > at  
> > org.elasticsearch.search.aggregations.bucket.significant.SignificantLongTerms.readFrom(SignificantLongTerms.java:126)  
> > at  
> > org.elasticsearch.search.aggregations.bucket.significant.SignificantLongTerms$1.readResult(SignificantLongTerms.java:50)  
> > at  
> > org.elasticsearch.search.aggregations.bucket.significant.SignificantLongTerms$1.readResult(SignificantLongTerms.java:46)  
> > at  
> > org.elasticsearch.search.aggregations.InternalAggregations.readFrom(InternalAggregations.java:190)  
> > at  
> > org.elasticsearch.search.aggregations.InternalAggregations.readAggregations(InternalAggregations.java:172)  
> > at  
> > org.elasticsearch.search.internal.InternalSearchResponse.readFrom(InternalSearchResponse.java:116)  
> > at  
> > org.elasticsearch.search.internal.InternalSearchResponse.readInternalSearchResponse(InternalSearchResponse.java:105)  
> > at  
> > org.elasticsearch.action.search.SearchResponse.readFrom(SearchResponse.java:227)  
> > at  
> > org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java:150)  
> > ... 23 more
> > 
> > _The (Scala) code I used to generate the request :_
> > 
> > ```
> > val request = ....
> > 
> > ```
> > 
> > > val topicsAggregation =  
> > > significantTerms("topics").field("topic\_ids").size(20)  
> > > request.addAggregation(topicsAggregation)
> > 
> > _The code to retrieve the aggregation (although it seems it never reaches  
> > here):_
> > 
> > > val terms: SignificantTerms = response.getAggregations.get("topics")
> > 
> > Any ideas?
> > 
> > Thanks!
> > 
> > Felipe Hummel

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**Author:** ![m\_stockerl](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/m_stockerl/32/1271_2.png) [@m\_stockerl](https://discuss.elastic.co/u/m_stockerl)\
**Post date:** [September 20, 2014, 1:11pm UTC](https://discuss.elastic.co/t/npe-in-significanceheuristicstreams-read-while-deserializing-response-searchresponse/19891/4 "2014-09-20T13:11:43Z")

</div>

I'm facing the same Problem... I tried the Aggregations using the REST-API  
and everything went fine.

It looks like the \*registerStream \*Method in the  
_SignificanceHeuristicStreams_ Class gets never called.  
Therefore, the _STREAMS_-List remains empty...

Cheers,  
Michael

Am Freitag, 19. September 2014 22:58:15 UTC+2 schrieb Felipe Hummel:

> Hey guys, I’m getting NullPointerException while using a  
> _significant\_terms_ aggregation. It happens in this line:
> 
> org.elasticsearch.search.aggregations.bucket.significant.heuristics.SignificanceHeuristicStreams.read(SignificanceHeuristicStreams.java:38)
> 
> The error is in the deserialization: _Failed to deserialize response of  
> type [org.elasticsearch.action.search.SearchResponse]_  
> I’m using the Java API. I just printed the request and manually did it  
> through the REST API and everything went fine. It happens only when using  
> the Java API.
> 
> I'm using ES 1.3.2.
> 
> _The printed search request:_
> 
> > {  
> > "from" : 0,  
> > "size" : 6,  
> > "timeout" : 30000,  
> > "query" : {  
> > "filtered" : {  
> > "query" : {  
> > "query\_string" : {  
> > "query" : "ayrton senna",  
> > "fields" : ["title^2.0", "description"],  
> > "default\_operator" : "and"  
> > }  
> > },  
> > "filter" : {  
> > "bool" : {  
> > "must" : [ {  
> > "range" : {  
> > "created\_at" : {  
> > "from" : null,  
> > "to" : "2014-09-19T20:28:30.000Z",  
> > "include\_lower" : true,  
> > "include\_upper" : true  
> > },  
> > "\_cache" : true  
> > }  
> > }, {  
> > "range" : {  
> > "published\_at" : {  
> > "from" : null,  
> > "to" : "2014-09-19T20:28:30.000Z",  
> > "include\_lower" : true,  
> > "include\_upper" : true  
> > },  
> > "\_cache" : true  
> > }  
> > }, {  
> > "range" : {  
> > "published\_at" : {  
> > "from" : "2014-08-20T20:28:30.000Z",  
> > "to" : "2014-09-19T20:28:30.000Z",  
> > "include\_lower" : true,  
> > "include\_upper" : true  
> > },  
> > "\_cache" : false  
> > }  
> > } ]  
> > }  
> > }  
> > }  
> > },  
> > "fields" : ,  
> > "aggregations" : {  
> > "topics" : {  
> > "significant\_terms" : {  
> > "field" : "topic\_ids",  
> > "size" : 20  
> > }  
> > }  
> > }  
> > }
> 
> _The complete error stacktrace:_
> 
> [ERROR] 2014-09-19 20:29:13.177 c.b.s.SearchServlet -  
> org.elasticsearch.transport.TransportSerializationException: Failed to  
> deserialize response of type  
> [org.elasticsearch.action.search.SearchResponse]  
> org.elasticsearch.transport.TransportSerializationException: Failed to  
> deserialize response of type  
> [org.elasticsearch.action.search.SearchResponse]  
> at  
> org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java:152)  
> at  
> org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:127)  
> at  
> org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)  
> at  
> org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)  
> at  
> org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)  
> at  
> org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:296)  
> at  
> org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462)  
> at  
> org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443)  
> at  
> org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303)  
> at  
> org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)  
> at  
> org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)  
> at  
> org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)  
> 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:88)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)  
> at  
> org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)  
> at  
> org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)  
> at  
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)  
> at  
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)  
> at java.lang.Thread.run(Thread.java:745)  
> Caused by: java.lang.NullPointerException  
> at  
> org.elasticsearch.search.aggregations.bucket.significant.heuristics.SignificanceHeuristicStreams.read(SignificanceHeuristicStreams.java:38)  
> at  
> org.elasticsearch.search.aggregations.bucket.significant.SignificantLongTerms.readFrom(SignificantLongTerms.java:126)  
> at  
> org.elasticsearch.search.aggregations.bucket.significant.SignificantLongTerms$1.readResult(SignificantLongTerms.java:50)  
> at  
> org.elasticsearch.search.aggregations.bucket.significant.SignificantLongTerms$1.readResult(SignificantLongTerms.java:46)  
> at  
> org.elasticsearch.search.aggregations.InternalAggregations.readFrom(InternalAggregations.java:190)  
> at  
> org.elasticsearch.search.aggregations.InternalAggregations.readAggregations(InternalAggregations.java:172)  
> at  
> org.elasticsearch.search.internal.InternalSearchResponse.readFrom(InternalSearchResponse.java:116)  
> at  
> org.elasticsearch.search.internal.InternalSearchResponse.readInternalSearchResponse(InternalSearchResponse.java:105)  
> at  
> org.elasticsearch.action.search.SearchResponse.readFrom(SearchResponse.java:227)  
> at  
> org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java:150)  
> ... 23 more
> 
> _The (Scala) code I used to generate the request :_
> 
> ```
> val request = ....
> 
> ```
> 
> > val topicsAggregation =  
> > significantTerms("topics").field("topic\_ids").size(20)  
> > request.addAggregation(topicsAggregation)
> 
> _The code to retrieve the aggregation (although it seems it never reaches  
> here):_
> 
> > val terms: SignificantTerms = response.getAggregations.get("topics")
> 
> Any ideas?
> 
> Thanks!
> 
> Felipe Hummel

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<div class="post-metadata">

**Author:** ![Felipe\_Hummel](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/felipe_hummel/32/1263_2.png) [@Felipe\_Hummel](https://discuss.elastic.co/u/Felipe_Hummel)\
**Post date:** [September 22, 2014, 12:26am UTC](https://discuss.elastic.co/t/npe-in-significanceheuristicstreams-read-while-deserializing-response-searchresponse/19891/5 "2014-09-22T00:26:44Z")

</div>

Maybe it's a bug? Anyone from ES has an idea?

On Saturday, September 20, 2014 10:11:44 AM UTC-3, [m.sto...@gini.net](mailto:m.sto...@gini.net) wrote:

> I'm facing the same Problem... I tried the Aggregations using the REST-API  
> and everything went fine.
> 
> It looks like the \*registerStream \*Method in the  
> _SignificanceHeuristicStreams_ Class gets never called.  
> Therefore, the _STREAMS_-List remains empty...
> 
> Cheers,  
> Michael
> 
> Am Freitag, 19. September 2014 22:58:15 UTC+2 schrieb Felipe Hummel:
> 
> > Hey guys, I’m getting NullPointerException while using a  
> > _significant\_terms_ aggregation. It happens in this line:
> > 
> > org.elasticsearch.search.aggregations.bucket.significant.heuristics.SignificanceHeuristicStreams.read(SignificanceHeuristicStreams.java:38)
> > 
> > The error is in the deserialization: _Failed to deserialize response of  
> > type [org.elasticsearch.action.search.SearchResponse]_  
> > I’m using the Java API. I just printed the request and manually did it  
> > through the REST API and everything went fine. It happens only when using  
> > the Java API.
> > 
> > I'm using ES 1.3.2.
> > 
> > _The printed search request:_
> > 
> > > {  
> > > "from" : 0,  
> > > "size" : 6,  
> > > "timeout" : 30000,  
> > > "query" : {  
> > > "filtered" : {  
> > > "query" : {  
> > > "query\_string" : {  
> > > "query" : "ayrton senna",  
> > > "fields" : ["title^2.0", "description"],  
> > > "default\_operator" : "and"  
> > > }  
> > > },  
> > > "filter" : {  
> > > "bool" : {  
> > > "must" : [ {  
> > > "range" : {  
> > > "created\_at" : {  
> > > "from" : null,  
> > > "to" : "2014-09-19T20:28:30.000Z",  
> > > "include\_lower" : true,  
> > > "include\_upper" : true  
> > > },  
> > > "\_cache" : true  
> > > }  
> > > }, {  
> > > "range" : {  
> > > "published\_at" : {  
> > > "from" : null,  
> > > "to" : "2014-09-19T20:28:30.000Z",  
> > > "include\_lower" : true,  
> > > "include\_upper" : true  
> > > },  
> > > "\_cache" : true  
> > > }  
> > > }, {  
> > > "range" : {  
> > > "published\_at" : {  
> > > "from" : "2014-08-20T20:28:30.000Z",  
> > > "to" : "2014-09-19T20:28:30.000Z",  
> > > "include\_lower" : true,  
> > > "include\_upper" : true  
> > > },  
> > > "\_cache" : false  
> > > }  
> > > } ]  
> > > }  
> > > }  
> > > }  
> > > },  
> > > "fields" : ,  
> > > "aggregations" : {  
> > > "topics" : {  
> > > "significant\_terms" : {  
> > > "field" : "topic\_ids",  
> > > "size" : 20  
> > > }  
> > > }  
> > > }  
> > > }
> > 
> > _The complete error stacktrace:_
> > 
> > [ERROR] 2014-09-19 20:29:13.177 c.b.s.SearchServlet -  
> > org.elasticsearch.transport.TransportSerializationException: Failed to  
> > deserialize response of type  
> > [org.elasticsearch.action.search.SearchResponse]  
> > org.elasticsearch.transport.TransportSerializationException: Failed to  
> > deserialize response of type  
> > [org.elasticsearch.action.search.SearchResponse]  
> > at  
> > org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java:152)  
> > at  
> > org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:127)  
> > at  
> > org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)  
> > at  
> > org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)  
> > at  
> > org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)  
> > at  
> > org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:296)  
> > at  
> > org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462)  
> > at  
> > org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443)  
> > at  
> > org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303)  
> > at  
> > org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)  
> > at  
> > org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)  
> > at  
> > org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)  
> > 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:88)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)  
> > at  
> > org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)  
> > at  
> > org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)  
> > at  
> > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)  
> > at  
> > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)  
> > at java.lang.Thread.run(Thread.java:745)  
> > Caused by: java.lang.NullPointerException  
> > at  
> > org.elasticsearch.search.aggregations.bucket.significant.heuristics.SignificanceHeuristicStreams.read(SignificanceHeuristicStreams.java:38)  
> > at  
> > org.elasticsearch.search.aggregations.bucket.significant.SignificantLongTerms.readFrom(SignificantLongTerms.java:126)  
> > at  
> > org.elasticsearch.search.aggregations.bucket.significant.SignificantLongTerms$1.readResult(SignificantLongTerms.java:50)  
> > at  
> > org.elasticsearch.search.aggregations.bucket.significant.SignificantLongTerms$1.readResult(SignificantLongTerms.java:46)  
> > at  
> > org.elasticsearch.search.aggregations.InternalAggregations.readFrom(InternalAggregations.java:190)  
> > at  
> > org.elasticsearch.search.aggregations.InternalAggregations.readAggregations(InternalAggregations.java:172)  
> > at  
> > org.elasticsearch.search.internal.InternalSearchResponse.readFrom(InternalSearchResponse.java:116)  
> > at  
> > org.elasticsearch.search.internal.InternalSearchResponse.readInternalSearchResponse(InternalSearchResponse.java:105)  
> > at  
> > org.elasticsearch.action.search.SearchResponse.readFrom(SearchResponse.java:227)  
> > at  
> > org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java:150)  
> > ... 23 more
> > 
> > _The (Scala) code I used to generate the request :_
> > 
> > ```
> > val request = ....
> > 
> > ```
> > 
> > > val topicsAggregation =  
> > > significantTerms("topics").field("topic\_ids").size(20)  
> > > request.addAggregation(topicsAggregation)
> > 
> > _The code to retrieve the aggregation (although it seems it never reaches  
> > here):_
> > 
> > > val terms: SignificantTerms = response.getAggregations.get("topics")
> > 
> > Any ideas?
> > 
> > Thanks!
> > 
> > Felipe Hummel

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**Author:** ![Mark\_Harwood\_2](https://avatars.discourse-cdn.com/v4/letter/m/c77e96/32.png) [@Mark\_Harwood\_2](https://discuss.elastic.co/u/Mark_Harwood_2)\
**Post date:** [September 22, 2014, 10:29am UTC](https://discuss.elastic.co/t/npe-in-significanceheuristicstreams-read-while-deserializing-response-searchresponse/19891/6 "2014-09-22T10:29:05Z")

</div>

Does this problem occur with the regular Java client?

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**Author:** ![m\_stockerl](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/m_stockerl/32/1271_2.png) [@m\_stockerl](https://discuss.elastic.co/u/m_stockerl)\
**Post date:** [September 22, 2014, 10:48am UTC](https://discuss.elastic.co/t/npe-in-significanceheuristicstreams-read-while-deserializing-response-searchresponse/19891/7 "2014-09-22T10:48:11Z")

</div>

Yes, I was using the Java Client of Version 1.3.2.

Am Montag, 22. September 2014 12:29:06 UTC+2 schrieb Mark Harwood:

> Does this problem occur with the regular Java client?

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<div class="post-metadata">

**Author:** ![Mark\_Harwood\_2](https://avatars.discourse-cdn.com/v4/letter/m/c77e96/32.png) [@Mark\_Harwood\_2](https://discuss.elastic.co/u/Mark_Harwood_2)\
**Post date:** [September 22, 2014, 11:16am UTC](https://discuss.elastic.co/t/npe-in-significanceheuristicstreams-read-while-deserializing-response-searchresponse/19891/8 "2014-09-22T11:16:08Z")

</div>

..from a Scala app?

The current line of enquiry being that there's something about the way  
Scala env behaves that might change the way dependency injection system we  
rely on in our Java client is working.

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**Author:** ![Felipe\_Hummel](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/felipe_hummel/32/1263_2.png) [@Felipe\_Hummel](https://discuss.elastic.co/u/Felipe_Hummel)\
**Post date:** [September 22, 2014, 8:59pm UTC](https://discuss.elastic.co/t/npe-in-significanceheuristicstreams-read-while-deserializing-response-searchresponse/19891/9 "2014-09-22T20:59:49Z")

</div>

Hi Mark, I've created isolated "mains" for Java and Scala:

> <https://gist.github.com/felipehummel/fbd005e6964ba546582d>

Both give the same exactly errors and stacktraces (also in the gist) when  
using my indices.  
So it can't be a Scala (using the Java Client) problem.

Both are run by SBT (with run-main) but it shouldn't matter, at the end SBT  
just calls "java -cp ...."

On Monday, September 22, 2014 8:16:08 AM UTC-3, Mark Harwood wrote:

> ..from a Scala app?
> 
> The current line of enquiry being that there's something about the way  
> Scala env behaves that might change the way dependency injection system we  
> rely on in our Java client is working.

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**Author:** ![Mark\_Harwood\_2](https://avatars.discourse-cdn.com/v4/letter/m/c77e96/32.png) [@Mark\_Harwood\_2](https://discuss.elastic.co/u/Mark_Harwood_2)\
**Post date:** [September 23, 2014, 4:49pm UTC](https://discuss.elastic.co/t/npe-in-significanceheuristicstreams-read-while-deserializing-response-searchresponse/19891/10 "2014-09-23T16:49:56Z")

</div>

Thanks, Felipe.

Problem reproduced and solution discovered. Please track  
[Aggregations: NPE in SignificanceHeuristicStreams.read while deserializing response · Issue #7840 · elastic/elasticsearch · GitHub](https://github.com/elasticsearch/elasticsearch/issues/7840) for progress.

On Monday, September 22, 2014 9:59:49 PM UTC+1, Felipe Hummel wrote:

> Hi Mark, I've created isolated "mains" for Java and Scala:  
> [ElasticSearch Scala/Java client SignificantTerms problem · GitHub](https://gist.github.com/felipehummel/fbd005e6964ba546582d)
> 
> Both give the same exactly errors and stacktraces (also in the gist) when  
> using my indices.  
> So it can't be a Scala (using the Java Client) problem.
> 
> Both are run by SBT (with run-main) but it shouldn't matter, at the end  
> SBT just calls "java -cp ...."
> 
> On Monday, September 22, 2014 8:16:08 AM UTC-3, Mark Harwood wrote:
> 
> > ..from a Scala app?
> > 
> > The current line of enquiry being that there's something about the way  
> > Scala env behaves that might change the way dependency injection system we  
> > rely on in our Java client is working.

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**Author:** ![Felipe\_Hummel](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/felipe_hummel/32/1263_2.png) [@Felipe\_Hummel](https://discuss.elastic.co/u/Felipe_Hummel)\
**Post date:** [September 23, 2014, 5:35pm UTC](https://discuss.elastic.co/t/npe-in-significanceheuristicstreams-read-while-deserializing-response-searchresponse/19891/11 "2014-09-23T17:35:54Z")

</div>

Thanks Mark, glad I could help.

In the meantime, is there any workaround to force the module to be load  
(without recompiling a ES .jar)?

On Tue, Sep 23, 2014 at 1:49 PM, Mark Harwood \<  
[mark.harwood@elasticsearch.com](mailto:mark.harwood@elasticsearch.com)\> wrote:

> Thanks, Felipe.
> 
> Problem reproduced and solution discovered. Please track  
> [Aggregations: NPE in SignificanceHeuristicStreams.read while deserializing response · Issue #7840 · elastic/elasticsearch · GitHub](https://github.com/elasticsearch/elasticsearch/issues/7840) for progress.
> 
> On Monday, September 22, 2014 9:59:49 PM UTC+1, Felipe Hummel wrote:
> 
> > Hi Mark, I've created isolated "mains" for Java and Scala:  
> > [ElasticSearch Scala/Java client SignificantTerms problem · GitHub](https://gist.github.com/felipehummel/fbd005e6964ba546582d)
> > 
> > Both give the same exactly errors and stacktraces (also in the gist) when  
> > using my indices.  
> > So it can't be a Scala (using the Java Client) problem.
> > 
> > Both are run by SBT (with run-main) but it shouldn't matter, at the end  
> > SBT just calls "java -cp ...."
> > 
> > On Monday, September 22, 2014 8:16:08 AM UTC-3, Mark Harwood wrote:
> > 
> > > ..from a Scala app?
> > > 
> > > The current line of enquiry being that there's something about the way  
> > > Scala env behaves that might change the way dependency injection system we  
> > > rely on in our Java client is working.
> > 
> > --  
> > You received this message because you are subscribed to a topic in the  
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> > [https://groups.google.com/d/msgid/elasticsearch/49a554a5-9605-4652-a2a2-f4334e74a636%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/49a554a5-9605-4652-a2a2-f4334e74a636%40googlegroups.com?utm_medium=email&utm_source=footer)  
> > .
> 
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**Author:** ![Mark\_Harwood\_2](https://avatars.discourse-cdn.com/v4/letter/m/c77e96/32.png) [@Mark\_Harwood\_2](https://discuss.elastic.co/u/Mark_Harwood_2)\
**Post date:** [September 23, 2014, 7:31pm UTC](https://discuss.elastic.co/t/npe-in-significanceheuristicstreams-read-while-deserializing-response-searchresponse/19891/12 "2014-09-23T19:31:01Z")

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I feel grubby even suggesting this...

```
  https://gist.github.com/markharwood/0cecd5019dbd5c4e90fc

```

but it looks to work.

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**Author:** ![Mark\_Harwood\_2](https://avatars.discourse-cdn.com/v4/letter/m/c77e96/32.png) [@Mark\_Harwood\_2](https://discuss.elastic.co/u/Mark_Harwood_2)\
**Post date:** [September 24, 2014, 9:46am UTC](https://discuss.elastic.co/t/npe-in-significanceheuristicstreams-read-while-deserializing-response-searchresponse/19891/13 "2014-09-24T09:46:58Z")

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Slightly less grubby....

```
    SignificanceHeuristicStreams.registerStream(JLHScore.STREAM, 

```

JLHScore.STREAM.getName());

call before creating the TransportClient and repeat as necessary for other  
choices of significance scoring heuristics like MutualInformation, GND and  
ChiSquare.

On Tuesday, September 23, 2014 8:31:01 PM UTC+1, Mark Harwood wrote:

> I feel grubby even suggesting this...
> 
> ```
> https://gist.github.com/markharwood/0cecd5019dbd5c4e90fc
> 
> ```
> 
> but it looks to work.

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**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, 1:00am UTC](https://discuss.elastic.co/t/npe-in-significanceheuristicstreams-read-while-deserializing-response-searchresponse/19891/14 "2017-07-06T01:00:16Z")

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