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https://issues.apache.org/jira/browse/LUCENE-6885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14993562#comment-14993562
 ] 

Christine Poerschke commented on LUCENE-6885:
---------------------------------------------

Never mind parentheses, {{String,Integer}} needed for {{new HashMap<>}} also 
now.
{code}
-    final Map<String,Integer> segmentReaders = new HashMap<>();
+    final Map<String,Integer> segmentReaders = (oldReaders == null ? 
Collections.<String,Integer>emptyMap() : new 
HashMap<String,Integer>(oldReaders.size()));
{code}

> StandardDirectoryReader (initialCapacity) tweaks
> ------------------------------------------------
>
>                 Key: LUCENE-6885
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6885
>             Project: Lucene - Core
>          Issue Type: Task
>            Reporter: Christine Poerschke
>            Assignee: Christine Poerschke
>            Priority: Minor
>         Attachments: LUCENE-6885.patch, LUCENE-6885.patch
>
>
> proposed patch against trunk to follow



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