maven platform encoding

Question

when you run mvn --version part of the output includes the locale and pratform encoding. For example: Default locale: en_GB, platform encoding: Cp1252

Answer 1

Best solution is:

<project>
  ...
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    ...
  </properties>
  ...
</project>

More: http://www.sonatype.com/people/2009/11/special-character-encoding-properties/

Answer 2

maven picking these values from Java system properties. Here is how you could set encoding:

<properties>
  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

Or:

  <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-resources-plugin</artifactId>
    <configuration>
      <encoding>UTF-8</encoding>
    </configuration>
  </plugin>

Or pass parameter to maven command line:

mvn -Dproject.build.sourceEncoding=UTF-8

Answer 3

You could set environment information for maven (on a windows system) with

set "MAVEN_OPTS=-Duser.language=fr -Dfile.encoding=UTF-8"

Answer 4

I had the same problem. The only thing that works is to set the appropriate MAVEN_OPTS. So if you use windows you can adapt mvn.bat in %MAVEN_HOME%/bin as follows:

set MAVEN_OPTS=%MAVEN_OPTS% -Dfile.encoding="UTF-8"

Following this mvn -v shows this:

..
Default locale: de_DE, platform encoding: UTF-8
..

Answer 5

set MAVEN_OPTS= -Dfile.encoding="UTF-8"

Actually it won't work, you need to remove the quotes ("") :

set MAVEN_OPTS= -Dfile.encoding=UTF-8