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From "Sebb (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (RAT-81) MalformedInputException thrown when RAT tries reading file
Date Tue, 16 Sep 2014 13:37:34 GMT

    [ https://issues.apache.org/jira/browse/RAT-81?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14135430#comment-14135430
] 

Sebb commented on RAT-81:
-------------------------

Also I'm not sure that the test files do have any errors in them

> MalformedInputException thrown when RAT tries reading file
> ----------------------------------------------------------
>
>                 Key: RAT-81
>                 URL: https://issues.apache.org/jira/browse/RAT-81
>             Project: Apache Rat
>          Issue Type: Bug
>          Components: engine
>    Affects Versions: 0.6, 0.7
>         Environment: Linux (Ubuntu) on x86, running with "default" file encoding set
to UTF-8
>            Reporter: Marshall Schor
>            Priority: Minor
>             Fix For: 0.8
>
>
> To reproduce, set the platform default locale to something that indicates UTF-8 file
encoding.
> This causes code in (for example) org.apache.rat.document.impl.FileDocument which return
FileReader to set up RAT to use a reader which is using the platform default character encoding
(in this case UTF-8).
> If the file being processed is not encoded in this , it is possible that the reader will
read some data which is "invalid" UTF-8 encodings, which causes the reader to throw a MalformedInputException
error.
> One case we found:
> The file being examined had invalid UTF-8 encodings.  First, Rat ran the BinaryGuesser
- but that returned false because it attempted to read the first 100 or so chars, and got
a "MalformedInputException" instead, so the try/catch block just ended up returning "false"
(not binary).  Then the HeaderChecker tried to read the file to check the header, and got
this same exception - but this time, it made RAT fail.
> Here's the last part of the stack trace:
> Caused by: org.apache.rat.report.RatReportFailedException: Analysis failed
>     at org.apache.rat.report.xml.XmlReport.report(XmlReport.java:66)
>     at org.apache.rat.mp.FilesReportable.run(FilesReportable.java:69)
>     at org.apache.rat.Report.report(Report.java:292)
>     at org.apache.rat.Report.report(Report.java:272)
>     at org.apache.rat.mp.AbstractRatMojo.createReport(AbstractRatMojo.java:341)
>     ... 23 more
> Caused by: org.apache.rat.document.RatDocumentAnalysisException: Cannot analyse header
>     at org.apache.rat.report.analyser.DocumentHeaderAnalyser.analyse(DocumentHeaderAnalyser.java:54)
>     at org.apache.rat.document.impl.util.DocumentAnalyserMultiplexer.analyse(DocumentAnalyserMultiplexer.java:37)
>     at org.apache.rat.document.impl.util.ConditionalAnalyser.matches(ConditionalAnalyser.java:44)
>     at org.apache.rat.document.impl.util.ConditionalAnalyser.analyse(ConditionalAnalyser.java:50)
>     at org.apache.rat.report.xml.XmlReport.report(XmlReport.java:64)
>     ... 27 more
> Caused by: org.apache.rat.analysis.RatHeaderAnalysisException: Cannot read header for
/home/tgoetz/tmp/uimaj-2.3.1/uimaj-core/src/test/resources/pearTests/encodingTests/UTF16_with_signature.xml
>     at org.apache.rat.report.analyser.HeaderCheckWorker.read(HeaderCheckWorker.java:96)
>     at org.apache.rat.report.analyser.DocumentHeaderAnalyser.analyse(DocumentHeaderAnalyser.java:50)
>     ... 31 more
> Caused by: sun.io.MalformedInputException
>     at sun.io.ByteToCharUTF8.convert(ByteToCharUTF8.java:294)
>     at sun.nio.cs.StreamDecoder$ConverterSD.convertInto(StreamDecoder.java:316)
>     at sun.nio.cs.StreamDecoder$ConverterSD.implRead(StreamDecoder.java:366)
>     at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:252)
>     at java.io.InputStreamReader.read(InputStreamReader.java:212)
>     at java.io.BufferedReader.fill(BufferedReader.java:157)
>     at java.io.BufferedReader.readLine(BufferedReader.java:320)
>     at java.io.BufferedReader.readLine(BufferedReader.java:383)
>     at org.apache.rat.report.analyser.HeaderCheckWorker.readLine(HeaderCheckWorker.java:111)
>     at org.apache.rat.report.analyser.HeaderCheckWorker.read(HeaderCheckWorker.java:89)
>     ... 32 more 
> Work-around: mark these files for explicit exclusion.
> Fix: change the binaryguesser to read the files in binary (not assuming any character
coding) and operate with that data.



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