[HADOOP-7353] Cleanup FsShell and prevent masking of RTE stacktraces

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.23.0
• Fix Version/s: 0.23.0
• Component/s: fs
• Hadoop Flags: Reviewed
• Assignee: Daryn Sharp
• Reporter: Daryn Sharp
• Created: 02/Jun/11 15:03
• Updated: 15/Nov/11 00:50
• Resolved: 06/Jun/11 20:54

Description

FsShell's top level exception handler catches and displays exceptions. Unfortunately it displays only the first line of an exception, which means an unexpected RuntimeExceptions like NullPointerException only display "cmd: NullPointerException". This user has no context to understand and/or accurately report the issue.

Found due to bugs such as HADOOP-7327.

Issue Links

• is broken by: HADOOP-7327 FileSystem.listStatus() throws NullPointerException instead of IOException upon access permission failure
• is part of: HADOOP-7176 Redesign FsShell