Michael McCandless created LUCENE-5561:
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Summary: NativeUnixDirectory is broken
Key: LUCENE-5561
URL: https://issues.apache.org/jira/browse/LUCENE-5561
Project: Lucene - Core
Issue Type: Bug
Reporter: Michael McCandless
Assignee: Michael McCandless
Fix For: 4.8, 5.0
Several things:
* It assumed ByteBuffer.allocateDirect would be page-aligned, but
that's no longer true in Java 1.7
* It failed to throw FNFE if a file didn't exist (throw IOExc
instead)
* It didn't have a default ctor taking File (so it was hard to run
all tests against it)
* It didn't have a test case
* Some Javadocs problems
* I cutover to FilterDirectory
I tried to cutover to BufferedIndexOutput since this is essentially
all that NativeUnixIO is doing ... but it's not simple because BIO
sometimes flushes non-full (non-aligned) buffers even before the end
of the file (its writeBytes method).
I also factored out a BaseDirectoryTestCase, and tried to fold in
"generic" Directory tests, and added/cutover explicit tests for the
core directory impls.
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