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Posted to common-issues@hadoop.apache.org by "Gabor Bota (JIRA)" <ji...@apache.org> on 2019/03/28 17:24:00 UTC
[jira] [Commented] (HADOOP-16218) findbugs warning of null param to
non-nullable method in Configuration with Guava update
[ https://issues.apache.org/jira/browse/HADOOP-16218?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16804127#comment-16804127 ]
Gabor Bota commented on HADOOP-16218:
-------------------------------------
Thanks for filing this [~stevel@apache.org]!
We have some other findbug issues with the patch: [findbug report|https://builds.apache.org/job/PreCommit-HADOOP-Build/16081/artifact/out/new-findbugs-hadoop-hdfs-project_hadoop-hdfs.html]
* Null passed for non-null parameter of com.google.common.base.Preconditions.checkState(boolean, String, Object, Object, Object) in org.apache.hadoop.hdfs.qjournal.server.Journal.getPersistedPaxosData(long)
* Null passed for non-null parameter of com.google.common.base.Preconditions.checkArgument(boolean, String, Object) in org.apache.hadoop.hdfs.qjournal.server.JournalNode.getLogDir(String, String)
* Nullcheck of jid at line 346 of value previously dereferenced in org.apache.hadoop.hdfs.qjournal.server.JournalNode.getLogDir(String, String)
I will check if those can be fixed with one patch.
> findbugs warning of null param to non-nullable method in Configuration with Guava update
> ----------------------------------------------------------------------------------------
>
> Key: HADOOP-16218
> URL: https://issues.apache.org/jira/browse/HADOOP-16218
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: build
> Affects Versions: 3.3.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Minor
>
> Findbugs is fussing over some unchanged code in configuration
> {code}
> Null passed for non-null parameter of writeXml(String, Writer) in org.apache.hadoop.conf.Configuration.writeXml(Writer)
> Bug type NP_NULL_PARAM_DEREF_ALL_TARGETS_DANGEROUS (click for details)
> In class org.apache.hadoop.conf.Configuration
> In method org.apache.hadoop.conf.Configuration.writeXml(Writer)
> Called method org.apache.hadoop.conf.Configuration.writeXml(String, Writer)
> At Configuration.java:[line 3490]
> Argument 1 is definitely null but must not be null
> Definite null passed to dangerous method call target org.apache.hadoop.conf.Configuration.writeXml(String, Writer)
> {code}
> Code looks fine; it's invoking Guava.Strings for the check for string == empty-or-null; maybe something changed there.
> Proposed: add @Nullable in Configuration writeXml
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