Apache Jackrabbit Oak 1.2.9/1.3.12 发布

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　　Apache Jackrabbit Oak 1.2.9 发布，此版本主要是一些改进和 bug 修复：

Bug 修复

    [OAK-3557] - NodeDocument.isConflicting() reads complete revision
    history for changed property
    [OAK-3638] - NodeAggregator in SolrQueryIndexProviderService
    should be volatile
    [OAK-3639] - Wrong method name for "updated" reference in
    SolrServerProviderService
    [OAK-3682] - Missing lucene-memory dependency in OSGi env breaks
    excerpt

改进

    [OAK-3372] - Collapsing external events in BackgroundObserver even
    before queue is full leads to JournalEntry not getting used
    [OAK-3494] - MemoryDiffCache should also check parent paths before
    falling to Loader (or returning null)
    [OAK-3650] - Index based excerpt should be used for binaries
    [OAK-3678] - Use stable reverse revision comparator in
    UpdateUtils.applyChanges()
　　同时还发布了 Apache Jackrabbit Oak 1.3.12 版本，这个是非稳定版本，主要是新特性和一些改进：
　　Bug 修复

    [OAK-2655] - Test failure: OrderableNodesTest.testAddNode
    [OAK-2858] - Test failure: ObservationRefreshTest
    [OAK-2859] - Test failure: OrderableNodesTest
    [OAK-3149] - SuggestHelper should manage a suggestor per index
    definition
    [OAK-3612] - The string/template cache of the SegmentWriter should
    be cleared before cleanup
    [OAK-3621] - Required property type not respected
    [OAK-3671] - Incomplete cleanup of entries in ACL
    [OAK-3673] - NotCompliantMBeanException for QueryEngineSettings,
    QueryStatManager, RepositoryStatsMBean
    [OAK-3682] - Missing lucene-memory dependency in OSGi env breaks
    excerpt
    [OAK-3689] - OakOSGiRepositoryFactory shutting down the repository
    twice
    [OAK-3692] - java.lang.NoClassDefFoundError:
    org/apache/lucene/index/sorter/Sorter$DocComparator
    [OAK-3697] - Baseline failure in oak-lucene
    [OAK-3701] - Exception in JcrRemotingServlet at startup
    [OAK-3709] - CugValidator should ignore node type definitions
    [OAK-3732] - Offline compaction doesn't clean up unreferenced tar
    files

改进

    [OAK-2843] - Broadcasting cache
    [OAK-3407] - Configuration to pass suggestion fields through
    analyzer
    [OAK-3677] - NodeStore.merge implementations throw ISE instead of
    IAE when passed a non root builder
    [OAK-3678] - Use stable reverse revision comparator in
    UpdateUtils.applyChanges()
    [OAK-3685] - Support S3DataSource as the migration source
    [OAK-3688] - Provide and use a default set of bundle filters
    [OAK-3702] - More resilient BackgroundThread implementation
    [OAK-3713] - Remove dep cycle between
    plugins/tree/TreeTypeProvider and spi.security
    [OAK-3715] - SegmentWriter reduce buffer size for reading binaries

新特性

    [OAK-3352] - Expose Lucene search score explanation
    [OAK-3654] - Integrate with Metrics for various stats collection
　　下载：http://jackrabbit.apache.org/downloads.html
　　Apache Jackrabbit 是由 Apache Foundation 提供的 JSR-170 的开放源码实现..
　　随着内容管理应用程序的日益普及，对用于内容仓库的普通、标准化 API 的需求已凸现出来。Content Repository for  Java Technology API (JSR-170) 的目标就是提供这样一个接口。JSR-170  的一个主要优点是，它不绑定到任何特定的底层架构。例如，JSR-170 实现的后端数据存储可以是文件系统、WebDAV 仓库、支持 XML  的系统，甚至还可以是 SQL 数据库。此外，JSR-170 的导出和导入功能允许一个集成器在内容后端与 JCR 实现之间无缝地切换。