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POWhy do I need to escape unicode in java source files?
 

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  1. POWhy do I need to escape unicode in java source files?
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    <p>Please note that I'm not asking how but why. And I don't know if it's a RCP specific problem or if it's something inherent to java.</p> <p>My java source files are encoded in UTF-8.</p> <p>If I define my literal strings like this :</p> <pre><code> new Language("fr", "Français"), new Language("zh", "中文") </code></pre> <p>It works as I expect when I use the string in the application by launching it from Eclipse as an Eclipse application :</p> <p><img src="https://i.stack.imgur.com/5iMfZ.png" alt="enter image description here"></p> <p>But if fails when I launch the .exe built by the "Eclipse Product Export Wizard" :</p> <p><img src="https://i.stack.imgur.com/anwJs.png" alt="enter image description here"></p> <p>The solution I use is to escape the chars like this :</p> <pre><code> new Language("fr", "Fran\u00e7ais"), // Français new Language("zh", "\u4e2d\u6587") // 中文 </code></pre> <p>There is no problem in doing this (all my other strings are in properties files, only the languages names are hardcoded) but I'd like to understand.</p> <p>I thought the compiler had to convert the java literal strings when building <a href="http://en.wikipedia.org/wiki/Java_class_file#The_constant_pool" rel="nofollow noreferrer">the bytecode</a>. So why is the unicode escaping necessary ? Is it wrong to use use high range unicode chars in java source files ? What happens exactly to those chars at compilation and in what it is different from the handling of escaped chars ? Is the problem just related to RCP cache ?</p>
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    1. USDenys Séguret
    1. USDenys Séguret
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    1. COIt appears that the Eclipse Product Export Wizard is not interpreting your files as UTF-8. Perhaps you need to run Eclipse's JVM with the encoding set to UTF-8 (`-Dfile.encoding=UTF8` in `eclipse.ini`)?
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      1. POWhy do I need to escape unicode in java source files?
      1. USMatt Ball
    2. COWhile this does not really explain why it happens it does suggest an alternative solution and indicates that the export wizard for whatever reason doesn't seem to honor the project's encoding properly: http://stackoverflow.com/questions/6891079/eclipse-rcp-wrong-encoding-when-deploying-the-product
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      1. POWhy do I need to escape unicode in java source files?
      1. USJiddo
    3. COTo confirm @Matt Ball's explanation, witch I think is correct, try setting the following option in the wizard: "Use class files compiled in the workspace"
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      1. USbruno conde
 

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