How do I set -Dfile.encoding within ant's build.xml?
Solution 1
A few options:
- add
-Dfile.encoding=iso-8859-1
to yourANT_OPTS
environment variable - use
<presetdef>
to setup defaults for all of your<javac>
invocations
Solution 2
If you've got files encoded in a particular way, it's probably best to tell javac that rather than forcing the whole JVM to use a particular encoding. The javac task has an encoding attribute for this reason.
<javac srcdir="${src.dir}" destdir="${build.classes.dir}" encoding="iso-8859-1" />
But really, you should just convert the source files to UTF-8. Everything tastes better in UTF-8. :)
Solution 3
Before changing build file i am getting java compile error like below.
ApplicationConstant.java:73: error: unmappable character for encoding ascii
public static final String INVALID_MDTVERSION_SECOND = " This not compatible with the server’s Version";
I have encounter this error when I used to have ant java target as:
<javac encoding="ascii"...>
Than i have change as below
<javac encoding="iso-8859-1" ...>
This issue got solved.
Solution 4
Ant itself cannot set system properties, but if you really want to, you can write a java program which sets the system property, and execute that from within Ant.
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Comments
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Dee Choksi over 3 years
I've got java source files with iso-8859-1 encoding. When I run ant, I get "warning: unmappable character for encoding UTF-8". I can avoid this if I run ant -Dfile.encoding=iso-8859-1 or add encoding="ISO-8859-1" to each javac statement.
Is there a way to set the property globally within build.xml? <property name="file.encoding" value="ISO-8859-1"> does not work. I know that I can add a foo=ISO-8859-1 property and set encoding="${foo}" to each javac statement, but I'm trying to avoid that.
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Gangnus over 8 yearsThe problem should be solved in four places simultaneously: stackoverflow.com/a/34225997/715269
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user1050755 over 11 yearsEven if you convert the contents to UTF-8, you sometimes have to have a clean environment (LC_ALL=C) and there that comes pretty much handy.