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https://issues.apache.org/jira/browse/HDFS-11976?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yongjun Zhang updated HDFS-11976:
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Description:
If exception X is thrown in try block, and exception Y is thrown is finally
block, X will be swallowed.
In addition, finally block is used to ensure resources are released properly in
general. If we throw exception from there, some resources may be leaked. So
it's not recommended to throw exception in the finally block
I caught one today and reported HDFS-11794, creating this jira as a master one
to catch other similar cases.
Hope there is some static analyzer to find all.
was:
If exception X is thrown in try block, and exception Y is thrown is finally
block, X will be swallowed.
In addition, finally block is used to ensure resources are released properly in
general. If we throw exception from there, some resources may be leaked. So
it's not recommended to throw exception in the finally block
I caught one today and reported HDFS-11794, creating this jira as a master one
to catch other similar cases.
> Examine code base for cases that exception is thrown from finally block and
> fix it
> ----------------------------------------------------------------------------------
>
> Key: HDFS-11976
> URL: https://issues.apache.org/jira/browse/HDFS-11976
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Yongjun Zhang
>
> If exception X is thrown in try block, and exception Y is thrown is finally
> block, X will be swallowed.
> In addition, finally block is used to ensure resources are released properly
> in general. If we throw exception from there, some resources may be leaked.
> So it's not recommended to throw exception in the finally block
> I caught one today and reported HDFS-11794, creating this jira as a master
> one to catch other similar cases.
> Hope there is some static analyzer to find all.
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