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https://issues.apache.org/jira/browse/HADOOP-16247?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16814984#comment-16814984
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Karthik Palanisamy commented on HADOOP-16247:
---------------------------------------------
#URI.normalize returns same URI if relativePath, will not be normalized because
it is Opaque. So "path" object will be null.
I will post a new patch. It looks like If we don't decode msg prior path
construction, then we may end up having more change to handle it.
> NPE in FsUrlConnection
> ----------------------
>
> Key: HADOOP-16247
> URL: https://issues.apache.org/jira/browse/HADOOP-16247
> Project: Hadoop Common
> Issue Type: Bug
> Components: hdfs-client
> Affects Versions: 3.1.2
> Reporter: Karthik Palanisamy
> Assignee: Karthik Palanisamy
> Priority: Major
>
> FsUrlConnection doesn't handle relativePath correctly after the change
> [HADOOP-15217|https://issues.apache.org/jira/browse/HADOOP-15217]
> {code}
> Exception in thread "main" java.lang.NullPointerException
> at org.apache.hadoop.fs.Path.isUriPathAbsolute(Path.java:385)
> at org.apache.hadoop.fs.Path.isAbsolute(Path.java:395)
> at
> org.apache.hadoop.fs.RawLocalFileSystem.pathToFile(RawLocalFileSystem.java:87)
> at
> org.apache.hadoop.fs.RawLocalFileSystem.deprecatedGetFileStatus(RawLocalFileSystem.java:636)
> at
> org.apache.hadoop.fs.RawLocalFileSystem.getFileLinkStatusInternal(RawLocalFileSystem.java:930)
> at
> org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:631)
> at
> org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:454)
> at
> org.apache.hadoop.fs.ChecksumFileSystem$ChecksumFSInputChecker.<init>(ChecksumFileSystem.java:146)
> at org.apache.hadoop.fs.ChecksumFileSystem.open(ChecksumFileSystem.java:347)
> at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:899)
> at org.apache.hadoop.fs.FsUrlConnection.connect(FsUrlConnection.java:62)
> at
> org.apache.hadoop.fs.FsUrlConnection.getInputStream(FsUrlConnection.java:71)
> at java.net.URL.openStream(URL.java:1045)
> at UrlProblem.testRelativePath(UrlProblem.java:33)
> at UrlProblem.main(UrlProblem.java:19)
> {code}
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