Wei-Chiu Chuang created HADOOP-16386:
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Summary: FindBugs warning in branch-2: GlobalStorageStatistics
defines non-transient non-serializable instance field map
Key: HADOOP-16386
URL: https://issues.apache.org/jira/browse/HADOOP-16386
Project: Hadoop Common
Issue Type: Bug
Components: fs
Affects Versions: 2.10.0
Reporter: Wei-Chiu Chuang
Found in HDFS-14585
https://builds.apache.org/job/PreCommit-HDFS-Build/27024/artifact/out/branch-findbugs-hadoop-common-project_hadoop-common-warnings.html#Warnings_BAD_PRACTICE
{quote}Class org.apache.hadoop.fs.GlobalStorageStatistics defines non-transient
non-serializable instance field map
Bug type SE_BAD_FIELD (click for details)
In class org.apache.hadoop.fs.GlobalStorageStatistics
Field org.apache.hadoop.fs.GlobalStorageStatistics.map
Actual type org.apache.hadoop.fs.StorageStatistics
In GlobalStorageStatistics.java{quote}
{quote}SE_BAD_FIELD: Non-transient non-serializable instance field in
serializable class
This Serializable class defines a non-primitive instance field which is neither
transient, Serializable, or java.lang.Object, and does not appear to implement
the Externalizable interface or the readObject() and writeObject() methods.
Objects of this class will not be deserialized correctly if a non-Serializable
object is stored in this field.{quote}
Looking in my inbox, this warning has been there since Feburary 9, 2019
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