Remove unused (and untested) methods from ReaderUtil that are also veeeeery
ineffective
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Key: LUCENE-3712
URL: https://issues.apache.org/jira/browse/LUCENE-3712
Project: Lucene - Java
Issue Type: Task
Components: core/other
Reporter: Uwe Schindler
Assignee: Uwe Schindler
ReaderUtil contains two methods that are nowhere used and not even tested.
Additionally those are implemented with useless List->array copying;
ineffective docStart calculation for a binary search later instead directly
returning the reader while scanning -- and I am not sure if they really work as
expected. As ReaderUtil is @lucene.internal we should remove them in 3.x and
trunk, alternatively the useless array copy / docStarts handling should be
removed and tests added:
{code:java}
public static IndexReader subReader(int doc, IndexReader reader)
public static IndexReader subReader(IndexReader reader, int subIndex)
{code}
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