[jira] [Created] (NUTCH-1807) avoid methods relying on system-specific default locale / charset

["Sebastian Nagel (JIRA)" <ji...@apache.org>]

Sebastian Nagel created NUTCH-1807:
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             Summary: avoid methods relying on system-specific default locale / charset
                 Key: NUTCH-1807
                 URL: https://issues.apache.org/jira/browse/NUTCH-1807
             Project: Nutch
          Issue Type: Bug
    Affects Versions: 2.2.1, 1.8
            Reporter: Sebastian Nagel
            Priority: Minor
             Fix For: 2.4, 1.9


Many methods in Java (and libraries) used to convert Strings, Numbers, Dates rely on the system-specific default locale / character set. This may cause strange behaviour and errors impossible to reproduce on other systems, see [~thetaphi]'s [blog post|http://blog.thetaphi.de/2012/07/default-locales-default-charsets-and.html], and discussions in NUTCH-1693 and NUTCH-1554.

A search with the [forbidden-apis client|https://code.google.com/p/forbidden-apis/wiki/CliUsage] shows 120 calls of such methods in trunk (without test classes):
{code}
# compile Nutch before check: all tested class files
# are then located in build/ (including plugins)
% CLASSPATH=`find build/ -name '*.jar' | tr '\n' ':'`
% java -jar forbiddenapis-1.5.1.jar -d build/ -c $CLASSPATH \
      -b jdk-unsafe-1.8 -b commons-io-unsafe-2.4
{code}
It is also possible to [integrate the check into the ant build|https://code.google.com/p/forbidden-apis/wiki/AntUsage] (to avoid that "forbidden" calls slip into the code again).




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