[HADOOP-9544] backport UTF8 encoding fixes to branch-1

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.3.0
• Fix Version/s: 1.2.0
• Component/s: io
• Hadoop Flags: Reviewed
• Assignee: Chris Nauroth
• Reporter: Chris Nauroth
• Created: 03/May/13 17:22
• Updated: 15/May/13 05:16
• Resolved: 03/May/13 22:47

Description

The trunk code has received numerous bug fixes related to UTF8 encoding. I recently observed a branch-1-based cluster fail to load its fsimage due to these bugs. I've confirmed that the bug fixes existing on trunk will resolve this, so I'd like to backport to branch-1.

Issue Links

• relates to: HADOOP-6522 TestUTF8 fails
• relates to: HADOOP-9103 UTF8 class does not properly decode Unicode characters outside the basic multilingual plane
• relates to: HDFS-4282 TestEditLog.testFuzzSequences FAILED in all pre-commit test
• relates to: HADOOP-7547 Fix the warning in writable classes.[ WritableComparable is a raw type. References to generic type WritableComparable<T> should be parameterized ]
• relates to: HDFS-3844 Add @Override where necessary and remove unnecessary {@inheritdoc} and imports