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https://issues.apache.org/jira/browse/TAP5-1778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13164740#comment-13164740
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Kalle Korhonen commented on TAP5-1778:
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I wonder if this creates more problems than solves. You could do it for this
instance but any read operation should then explicitly specify UTF-8, otherwise
you get mixed results. What if Tapestry, or your own code depends on a library
that doesn't specify the encoding but uses platform default. Perhaps a better,
more generic solution is just to document that JVM's default encoding should be
set to -Dfile.encoding=UTF-8.
> Template parsing dependent on JVM default charset
> -------------------------------------------------
>
> Key: TAP5-1778
> URL: https://issues.apache.org/jira/browse/TAP5-1778
> Project: Tapestry 5
> Issue Type: Bug
> Components: tapestry-core
> Affects Versions: 5.3
> Reporter: Robert Coie
> Priority: Minor
>
> This is my first experience with JIRA, so apologies if it is not formatted
> properly. I raised this topic on the tapestry-users mailing list and was
> asked by a couple of people there to create an issue here.
> internal.services.XMLTokenStream's openStream method contains the following
> lines:
> InputStreamReader rawReader = new InputStreamReader(rawStream);
> ...
> PrintWriter writer = new PrintWriter(bos);
> Both of these implicitly rely on the default JVM charset. This poses a
> significant problem for non-ASCII text in templates on Google App Engine,
> where the default is "US-ASCII". In the interests of robustness, I think it
> would be nice if Tapestry was able to eliminate any reliance on default
> charsets. I am not confident enough in my understanding of Tapestry internals
> to know how to appropriately retrieve symbol properties (such as
> "tapestry.charset") via the IoC system in internal service implementations,
> but I have verified that explicitly specifying "UTF-8" as follows resolved my
> problem:
> InputStreamReader rawReader = new InputStreamReader(rawStream, "UTF-8");
> ...
> PrintWriter writer = new PrintWriter( new OutputStreamWriter(bos, "UTF-8") );
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