Jackson throws exception when deserializing Page [DATAES-274]

[spring-projects-issues]

Nikola Matkovic opened DATAES-274 and commented

When retrieving data from elasticsearch using elasticsearch repository I get the following exception:

exception:org.springframework.http.converter.HttpMessageNotWritableException - Could not write content: (was java.lang.NullPointerException) (through reference chain: org.springframework.data.elasticsearch.core.aggregation.impl.AggregatedPageImpl["facets"]); nested exception is com.fasterxml.jackson.databind.JsonMappingException: (was java.lang.NullPointerException) (through reference chain: org.springframework.data.elasticsearch.core.aggregation.impl.AggregatedPageImpl["facets"])"

Using this method in repository that extends ElasticsearchRepository
Page<EventLog> findBySeverity(String severity, Pageable pageable);

using:

• elasticsearch client 2.3.3
• spring-boot 1.4.0.RC1
• spring-data-elasticsearch 2.1.0.BUILD-SNAPSHOT

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Referenced from: commits a085c06

3 votes, 10 watchers

[spring-projects-issues]

Simon Schneider commented

Did you find a solution or workaround for this? I have the same issue but with newer versions Spring Boot 1.5.1.RELEASE and elasticsearch 2.4.4

[spring-projects-issues]

liushaofei commented

spring-boot 1.4.1.RELEASE is ok

[spring-projects-issues]

Philipp Kräutli commented

PR #175

[spring-projects-issues]

sreekanth commented

Due to this issue, we could not upgrade spring data stack, may i know when this is expected to be fixed ?

[spring-projects-issues]

sreekanth commented

Is it possible for a patch release for the same issue in any 2.1.x branch ?

[spring-projects-issues]

Oliver Drotbohm commented

As a general comment, Page implementations are Spring Data domain types that are not designed to be marshaled to JSON directly. Please make sure you either map them into a JSON-serializable/deserializable DTO or use Spring HATEOAS' PagedResourcesAssembler to create a PagedResource (that'll include links to the previous and/or next pages etc.)