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https://issues.apache.org/jira/browse/LUCENE-2688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12917973#action_12917973
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Robert Muir commented on LUCENE-2688:
-------------------------------------
bq. Luckily Android includes java.util.concurrent - what if it didn't? Would we
attempt to fix Lucene too (IndexReader wouldn't work, for example).
I think it goes much deeper than this, besides having the APIs, do they
*actually work* ?
For example, with apache harmony (android uses its classlib!)
there was/is some work to actually make tests pass: HARMONY-6640, HARMONY-6648,
HARMONY-6649, HARMONY-6650
fortunately the harmony developers were very helpful in getting things moving,
but my point is that unless the tests pass, its pointless to waste time looking
at the APIs
> NativeFSLockFactory throws an exception on Android 2.2 platform as
> java.lang.management package is not available on android.
> ----------------------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-2688
> URL: https://issues.apache.org/jira/browse/LUCENE-2688
> Project: Lucene - Java
> Issue Type: Bug
> Components: Store
> Affects Versions: 3.0, 3.0.1, 3.0.2
> Environment: Android 2.2 Froyo Nexus One
> Reporter: Surinder Pal Singh Bindra
> Fix For: 2.9.4, 3.0.3, 3.1, 4.0
>
>
> NativeFSLockFactory throws an exception on Android 2.2 platform as
> java.lang.management package is not available on android.
> Looks like FSDirectory defaults to NativeFSLockFactory, and this class
> refers to java.lang.management package to generate a unique lock.
> java.lang.management is not available in Android 2.2 and hence a runtime
> exception is raised. The workaround is to use another custom LockFactory or
> SimpleFSLockFactory, but Fixing NativeFSLockFactroy will help.
> Thanks,
> Surinder
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