JVM property -Dfile encoding UTF8 or UTF-8

Question

I would like to know what is the value of the Java Virtual Machine  JVM  property to set my file encoding to UTF-8   Do I put -Dfile encoding UTF8 or -Dfile encoding UTF-8

User · Accepted Answer

INFO  BUILD SUCCESS Picked up JAVA TOOL OPTIONS  -Dfile encoding UTF8  Anyway  it works for me

User · Answer

It will be   UTF8   See here for the definitions

User · Answer

This is not a direct answer  but very useful if you don t have access to how java starts  you can set the environment variable JAVA TOOLS OPTIONS to -Dfile encoding  UTF-8  and every time the jvm starts it will pick up that option

User · Answer

If  running an Oracle HotSpot JDK 1 7 x  on a Linux platform where your locale suggests UTF-8  e g  LANG en US utf8   if you don t set it on the command-line with -Dfile encoding  the JDK will default file encoding and the default Charset like this   System out println String format  file encoding   s   System getProperty  file encoding      System out println String format  defaultCharset   s   Charset defaultCharset   name            yields   file encoding  UTF-8 defaultCharset  UTF-8       suggesting the default is UTF-8 on such a platform   Additionally  if java nio charset Charset defaultCharset   finds file encoding not-set  it looks for java nio charset Charset forName  UTF-8    suggesting it prefers that string  although it is well-aliased  so  UTF8  will also work fine   If you run the same program on the same platform with java -Dfile encoding UTF8  without the hypen  it yields   file encoding  UTF8 defaultCharset  UTF-8       noting that the default charset has been canonicalized from UTF8 to UTF-8

User · Answer

Both UTF8 and UTF-8 work for me

[file] JVM property -Dfile.encoding=UTF8 or UTF-8?

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