[jira] [Created] (LUCENE-6976) BytesTermAttributeImpl.copyTo NPEs when the BytesRef is null

["David Smiley (JIRA)" <ji...@apache.org>]

David Smiley created LUCENE-6976:
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             Summary: BytesTermAttributeImpl.copyTo NPEs when the BytesRef is null
                 Key: LUCENE-6976
                 URL: https://issues.apache.org/jira/browse/LUCENE-6976
             Project: Lucene - Core
          Issue Type: Bug
            Reporter: David Smiley
            Assignee: David Smiley
            Priority: Minor


The BytesTermAttributeImpl class, not used much I think, has a problem in its copyTo method in which it assumes "bytes" isn't null since it calls BytesRef.deepCopyOf on it.  Perhaps deepCopyOf should support null?  And also, toString(), equals() and hashCode() aren't implemented but we can do so.
This was discovered in SOLR-8541; the spatial PrefixTreeStrategy uses this attribute and the CachingTokenFilter when used on the analysis chain will call clearAttributes() in it's end() method and then capture the state so it can be replayed later.  BytesTermAttributeImpl.clear() nulls out the bytes reference.



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