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Published Jul. 2, 2025

web content can not be displayed on the left pane with Elasticsearch NullPointerException in log

Written By

Emma Liu

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Issue

  • No web content is displayed either on the left pane or through the web content display widget with the following NullPointerException in log
29/12/2021 06:30:18,799 ERROR [default task-476][ElasticsearchIndexSearcher:165] java.lang.NullPointerException
java.lang.NullPointerException
at com.liferay.portal.search.elasticsearch7.internal.search.engine.adapter.search.SearchSearchResponseAssemblerImpl.setCount(SearchSearchResponseAssemblerImpl.java:163)
at com.liferay.portal.search.elasticsearch7.internal.search.engine.adapter.search.SearchSearchResponseAssemblerImpl.assemble(SearchSearchResponseAssemblerImpl.java:75)
at com.liferay.portal.search.elasticsearch7.internal.search.engine.adapter.search.SearchSearchRequestExecutorImpl.execute(SearchSearchRequestExecutorImpl.java:71)
at com.liferay.portal.search.elasticsearch7.internal.search.engine.adapter.search.ElasticsearchSearchRequestExecutor.executeSearchRequest(ElasticsearchSearchRequestExecutor.java:59)
at com.liferay.portal.search.engine.adapter.search.SearchSearchRequest.accept(SearchSearchRequest.java:45)
at com.liferay.portal.search.engine.adapter.search.SearchSearchRequest.accept(SearchSearchRequest.java:34)
at com.liferay.portal.search.elasticsearch7.internal.search.engine.adapter.ElasticsearchSearchEngineAdapterImpl.execute(ElasticsearchSearchEngineAdapterImpl.java:103)
at com.liferay.portal.search.elasticsearch7.internal.ElasticsearchIndexSearcher.search(ElasticsearchIndexSearcher.java:127)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

Environment

  • Liferay DXP 7.3

Resolution

  • The NullPointerException is related to the Elasticsearch 7 system settings.
  • To resolve this, go to Control Panel -> System Settings -> Elasticsearch 7 page, and check the Track Total Hits​is checkbox.

 

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