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From "Stephen Chu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11165) TestUTF8 fails when run against java 8
Date Mon, 03 Nov 2014 21:21:35 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11165?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14195110#comment-14195110
] 

Stephen Chu commented on HADOOP-11165:
--------------------------------------

This is related to http://stackoverflow.com/questions/25404373/java-8-utf-8-encoding-issue-java-bug:

"It is a property of the “Modified UTF-8” encoding to store surrogate pairs (or even unpaired
chars of that range) like individual characters. And it’s an error if a decoder claiming
to use standard UTF-8 uses “Modified UTF-8”. This seems to have been fixed with Java 8."

So when running the test in Java 8, we'll get mismatching Strings because {{new String(UTF8.getBytes(before),
"UTF-8")}} will not decode using "Modified UTF-8" anymore.

> TestUTF8 fails when run against java 8
> --------------------------------------
>
>                 Key: HADOOP-11165
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11165
>             Project: Hadoop Common
>          Issue Type: Test
>            Reporter: Ted Yu
>            Assignee: Stephen Chu
>            Priority: Minor
>
> Using jdk1.8.0_20 , I got:
> {code}
> testGetBytes(org.apache.hadoop.io.TestUTF8)  Time elapsed: 0.007 sec  <<< FAILURE!
> junit.framework.ComparisonFailure: expected:<쑼ь⣄鬘㟻햫紖燺[?炀⃍⑰풸낓⨵ἲꬌホ쭷㛕曬䟊⁍䴥䳠領蟭뱻宭竕昚鍳튇ꊕ혶齲쏈㠮胨䩦隼᢯䍻᝴킿喝벁ࢼ듿饭玳Մ剌䒤?䳛슟녚沖᯳?訨
> 牙⍖?䎠旘薑春觀葝礫⁑ﻱ⣽゚굿뒦ݦ︀偆?]古絥萟浐> but was:<쑼ь⣄鬘㟻햫紖燺[�炀⃍⑰풸낓⨵ἲꬌホ쭷㛕曬䟊⁍䴥䳠領蟭뱻宭竕昚鍳튇ꊕ혶齲쏈㠮胨䩦隼᢯䍻᝴킿喝벁ࢼ듿饭玳Մ剌䒤�䳛슟녚᯳�訨牙⍖�䎠旘薑春觀葝礫⁑ﻱ⣽゚굿뒦ݦ︀偆�]古絥萟浐>
>         at junit.framework.Assert.assertEquals(Assert.java:100)
>         at junit.framework.Assert.assertEquals(Assert.java:107)
>         at junit.framework.TestCase.assertEquals(TestCase.java:269)
>         at org.apache.hadoop.io.TestUTF8.testGetBytes(TestUTF8.java:58)
> testIO(org.apache.hadoop.io.TestUTF8)  Time elapsed: 0.002 sec  <<< FAILURE!
> junit.framework.ComparisonFailure: expected:<...ᨍ⁖粩⧬车﹂脖朷䝄懒댵突疼資⍣眠畠忁[?]䪐ゑ鬍鍅遻ꈸ釡>
but was:<...ᨍ⁖粩⧬车﹂脖朷䝄懒댵突疼資⍣眠畠忁[�]䪐ゑ鬍鍅遻>ꈸ釡>
>         at junit.framework.Assert.assertEquals(Assert.java:100)
>         at junit.framework.Assert.assertEquals(Assert.java:107)
>         at junit.framework.TestCase.assertEquals(TestCase.java:269)
>         at org.apache.hadoop.io.TestUTF8.testIO(TestUTF8.java:86)
> {code}



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