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Colin Patrick McCabe commented on HADOOP-7352: ---------------------------------------------- This should be easier with the new jdk7 changes. We now have access to directory listing APIs like DirectoryStream that throw IOEs on problems instead of returning null. > Contracts of LocalFileSystem and DistributedFileSystem should require > FileSystem::listStatus throw IOException not return null upon access error > ------------------------------------------------------------------------------------------------------------------------------------------------ > > Key: HADOOP-7352 > URL: https://issues.apache.org/jira/browse/HADOOP-7352 > Project: Hadoop Common > Issue Type: Improvement > Components: fs, fs/s3 > Reporter: Matt Foley > Assignee: Matt Foley > > In HADOOP-6201 and HDFS-538 it was agreed that FileSystem::listStatus should > throw FileNotFoundException instead of returning null, when the target > directory did not exist. > However, in LocalFileSystem implementation today, FileSystem::listStatus > still may return null, when the target directory exists but does not grant > read permission. This causes NPE in many callers, for all the reasons cited > in HADOOP-6201 and HDFS-538. See HADOOP-7327 and its linked issues for > examples. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org