# Invoke JAVA high level rest client Analyzer API issue **URL:** \ **Category:** Elasticsearch\ **Created:** [December 18, 2018, 8:09am UTC](https://discuss.elastic.co/t/invoke-java-high-level-rest-client-analyzer-api-issue/161276 "2018-12-18T08:09:16Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![hxwhou](https://avatars.discourse-cdn.com/v4/letter/h/f475e1/32.png) [@hxwhou](https://discuss.elastic.co/u/hxwhou)\ **Post date:** [December 18, 2018, 8:09am UTC](https://discuss.elastic.co/t/invoke-java-high-level-rest-client-analyzer-api-issue/161276/1 "2018-12-18T08:09:16Z")
Refer to the document of [Java REST Client [6.4] ](https://www.elastic.co/guide/en/elasticsearch/client/java-rest/6.4/index.html)» [Java High Level REST Client](https://www.elastic.co/guide/en/elasticsearch/client/java-rest/6.4/java-rest-high.html) » [Indices APIs](https://www.elastic.co/guide/en/elasticsearch/client/java-rest/6.4/_indices_apis.html) » Analyze API ![image](https://us1.discourse-cdn.com/elastic/original/3X/2/2/22d144ac14964a308392f394e4b3a3dfad47696e.png) ![image](https://us1.discourse-cdn.com/elastic/original/3X/3/5/35ee86e6312754ac3b55086117d9e3b45c5fc90a.png) 2018-12-18 15:39:20,122 INFO (SLF4JLogger.java:71)- Opened connection [connectionId{localValue:2, serverValue:1427}] to 9.111.97.201:27017 com.fasterxml.jackson.core.JsonGenerationException: Can not write a string, expecting field name (context: Object) at com.fasterxml.jackson.core.JsonGenerator.\_reportError(JsonGenerator.java:1961) at com.fasterxml.jackson.core.json.JsonGeneratorImpl.\_reportCantWriteValueExpectName(JsonGeneratorImpl.java:244) at com.fasterxml.jackson.core.json.UTF8JsonGenerator.\_verifyValueWrite(UTF8JsonGenerator.java:1079) at com.fasterxml.jackson.core.json.UTF8JsonGenerator.writeString(UTF8JsonGenerator.java:445) at org.elasticsearch.common.xcontent.json.JsonXContentGenerator.writeString(JsonXContentGenerator.java:281) at org.elasticsearch.common.xcontent.XContentBuilder.value(XContentBuilder.java:660) at org.elasticsearch.action.admin.indices.analyze.AnalyzeRequest$NameOrDefinition.toXContent(AnalyzeRequest.java:111) at org.elasticsearch.action.admin.indices.analyze.AnalyzeRequest.toXContent(AnalyzeRequest.java:284) at org.elasticsearch.common.xcontent.XContentHelper.toXContent(XContentHelper.java:349) at org.elasticsearch.common.xcontent.XContentHelper.toXContent(XContentHelper.java:335) at org.elasticsearch.client.RequestConverters.createEntity(RequestConverters.java:641) at org.elasticsearch.client.IndicesRequestConverters.analyze(IndicesRequestConverters.java:404) at org.elasticsearch.client.RestHighLevelClient.internalPerformRequest(RestHighLevelClient.java:1589) at org.elasticsearch.client.RestHighLevelClient.performRequest(RestHighLevelClient.java:1563) at org.elasticsearch.client.RestHighLevelClient.performRequestAndParseEntity(RestHighLevelClient.java:1525) at org.elasticsearch.client.IndicesClient.analyze(IndicesClient.java:1251) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) ....... at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:155) at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:123) at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:108) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:800) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:800) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1471) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) Suppressed: java.lang.IllegalStateException: Failed to close the XContentBuilder at org.elasticsearch.common.xcontent.XContentBuilder.close(XContentBuilder.java:1002) at org.elasticsearch.common.xcontent.XContentHelper.toXContent(XContentHelper.java:344) ... 75 more Caused by: java.io.IOException: Unclosed object or array found at org.elasticsearch.common.xcontent.json.JsonXContentGenerator.close(JsonXContentGenerator.java:469) at org.elasticsearch.common.xcontent.XContentBuilder.close(XContentBuilder.java:1000) ... 76 more who knows the reason for this? many thanks~ ---
**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:** [December 18, 2018, 4:07pm UTC](https://discuss.elastic.co/t/invoke-java-high-level-rest-client-analyzer-api-issue/161276/2 "2018-12-18T16:07:52Z")
Please don't post images of text as they are hardly readable and not searchable. Please format your code, logs or configuration files using `` icon as explained in [this guide](https://discuss.elastic.co/t/about-the-elasticsearch-category/21) and not the citation button. It will make your post more readable. Or use markdown style like: ```` ``` CODE ``` ```` This is the icon to use if you are not using markdown format: ![image](https://us1.discourse-cdn.com/elastic/original/3X/7/e/7e6e239431ec2d71cbf1beef741f2e93e7cc762c.jpg) There's a live preview panel for exactly this reasons. Lots of people read these forums, and many of them will simply skip over a post that is difficult to read, because it's just too large an investment of their time to try and follow a wall of badly formatted text. If your goal is to get an answer to your questions, it's in your interest to make it as easy to read and understand as possible. Please update your post. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [January 15, 2019, 4:18pm UTC](https://discuss.elastic.co/t/invoke-java-high-level-rest-client-analyzer-api-issue/161276/3 "2019-01-15T16:18:04Z")
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