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https://issues.apache.org/jira/browse/YETUS-304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15145464#comment-15145464
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Allen Wittenauer commented on YETUS-304:
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bq. documentation patch should not need to recompile Java code
You'll need to take that up with maven, since mvn site triggers the compile.
> Documentation-only patch should not compile Java code
> -----------------------------------------------------
>
> Key: YETUS-304
> URL: https://issues.apache.org/jira/browse/YETUS-304
> Project: Yetus
> Issue Type: Bug
> Reporter: Wei-Chiu Chuang
>
> I saw an issue in the rev01 patch in this JIRA:
> https://issues.apache.org/jira/browse/HADOOP-12793
> This is a documentation-only patch, but precommit failed.
> {noformat}
> [ERROR] Failed to execute goal
> org.apache.maven.plugins:maven-site-plugin:3.4:site (default-site) on project
> hadoop-hdfs: failed to get report for
> org.apache.maven.plugins:maven-dependency-plugin: Failed to execute goal
> org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile)
> on project hadoop-hdfs: Compilation failure: Compilation failure:
> [ERROR]
> /testptch/hadoop/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java:[258,7]
> error: DataNode is not abstract and does not override abstract method
> reconfigurePropertyImpl(String,String) in ReconfigurableBase
> [ERROR]
> /testptch/hadoop/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java:[511,16]
> error: reconfigurePropertyImpl(String,String) in DataNode cannot override
> reconfigurePropertyImpl(String,String) in ReconfigurableBase
> [ERROR] return type String is not compatible with void
> [ERROR]
> /testptch/hadoop/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java:[510,2]
> error: method does not override or implement a method from a supertype
> [ERROR] -> [Help 1]
> {noformat}
> There are two issues that I can see:
> * documentation patch should not need to recompile Java code
> * the compilation error is because a method signature was changed in Hadoop
> Common in HDFS-9801, and somehow the precommit script only updated the code
> change in hadoop-hdfs, breaking the build. I locally verified that the build
> should pass if built from Hadoop root directory.
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