Issue Summary

Having multiple indexers with the same id registered via multiple custom fields might cause the issue with reindexing due to CustomFieldIndexerAdapter doesn't delegate correctly.

Context:

• It uses equals() and hashCode() from Object instead of delegating to the wrapped object which means that custom field indexers returned from com.atlassian.jira.issue.index.managers.FieldIndexerManagerImpl.getAllIssueIndexers() are no longer deduped.

Expected Results

CustomFieldIndexerAdapter delegates correctly

Actual Results

CustomFieldIndexerAdapter doesn't delegate correctly

The below exception is thrown in the Jira file during reindexing:

java.lang.IllegalArgumentException: DocValuesField "sr_num_atch" appears more than once in this document (only one value is allowed per field)

Workaround

None