Fixing com.couchbase.client.java.error.DocumentDoesNotExistException – Couchbase

If you are using couchbase spring cache then you might get following exception:

12:16:58,338 ERROR [com.arpit.common.util.Resource] (http-/127.0.0.1:8080-6) Error occured: Details com.couchbase.client.java.error.DocumentDoesNotExistException

This exception is raised by couchbase client when document does not exist in cache and a replace operation is used, possible use case is when you are caching the resource which return null (which was happening for me), for example:

@Override
@Cacheable(value = "EMPLOYEE_", key = "#id")
public Employee getEmployee(int id) {
	return null;
}

If you are facing the same problem as me then you can fix it using the unless attribute of @Cacheable which is available as of Spring 3.2, as follows:

@Override
@Cacheable(value = "EMPLOYEE_", key = "#id", unless = "#result == null")
public Employee getEmployee(int id) {
	return null;
}

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