[jira] [Created] (HADOOP-8815) RandomDatum overrides equals(Object) but no hashCode()

[Brandon Li (JIRA)]

Brandon Li created HADOOP-8815:
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 Summary: RandomDatum overrides equals(Object) but no hashCode()
 Key: HADOOP-8815
 URL: https://issues.apache.org/jira/browse/HADOOP-8815
 Project: Hadoop Common
  Issue Type: Improvement
  Components: test
Affects Versions: 3.0.0
Reporter: Brandon Li
Assignee: Brandon Li
Priority: Minor


Override equal() but not hashCode() is a violation of the general contract for 
Object.hashCode will occur, which can have unexpected repercussions when this 
class is in conjunction with all hash-based collections.

This test class is used in multiple places, so it may be worth fixing.

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[jira] [Created] (HADOOP-8814) Inefficient comparison with the empty string. Use isEmpty() instead

[Brandon Li (JIRA)]

Brandon Li created HADOOP-8814:
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 Summary: Inefficient comparison with the empty string. Use 
isEmpty() instead
 Key: HADOOP-8814
 URL: https://issues.apache.org/jira/browse/HADOOP-8814
 Project: Hadoop Common
  Issue Type: Improvement
  Components: conf, fs, fs/s3, ha, io, metrics, performance, record, 
security, util
Reporter: Brandon Li
Assignee: Brandon Li
Priority: Minor


Prior to JDK 6, we can check if a string is empty in 2 ways:

   * if(s != null && s.length() == 0)
   * if(("").equals(s)) or if( s.equals(""))

Starting from JDK 6, String class has a new convenience and efficient method 
isEmpty() to check string's length.

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[jira] [Created] (HADOOP-8813) RPC Serever and Client classes need InterfaceAudience and InterfaceStability annotations

[Brandon Li (JIRA)]

Brandon Li created HADOOP-8813:
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 Summary: RPC Serever and Client classes need InterfaceAudience and 
InterfaceStability annotations
 Key: HADOOP-8813
 URL: https://issues.apache.org/jira/browse/HADOOP-8813
 Project: Hadoop Common
  Issue Type: Improvement
Reporter: Brandon Li
Assignee: Brandon Li
Priority: Trivial




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Build failed in Jenkins: Hadoop-Common-trunk #534

[Apache Jenkins Server]

See 

Changes:

[tucu] HDFS-3938. remove current limitations from HttpFS docs. (tucu)

[tomwhite] HADOOP-8780. Update DeprecatedProperties apt file. Contributed by 
Ahmed Radwan

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