IntelliJ IDEA incorrect encoding in console output

31
votes

It seems to be really crazy, but I can't do anything with broken encoding in the console of my IntelliJ IDEA.

Things I made to overcome this:

  1. Set -Dfile.encoding=UTF-8 and -Dfile.encoding=UTF-8 in both idea.exe.vmoptions and idea64.exe.vmoptions (I use 64 bit version though).
  2. Added -Dfile.encoding=UTF-8 and -Dfile.encoding=UTF-8 to run/debug configuration of my application.
  3. Changed Settings > Editor > File encodings IDE Encoding/Project Encoding/Default encoding for property files to UTF-8.

Having all these done, there is still no luck and symbols are not shown correctly in the console. I tried to debug the java.io.PrintStream#println(java.lang.String) method and found out that System.out.textOut.out.se.cs equals to windows-1251. No idea where this value is coming from.

This issue has been bothering me for a long time and I was unable to find anything in the web that could help me.

5
javaintellij-ideaencodingutf-8character-encoding
Please provide some code: stackoverflow.com/help/mcve - Alastair McCormack
System.out.println("\u0394"); prints Greek Character Delta, Δ . What does that print for you? - Jake Hendy
@JakeHendy Sorry for delayed answer. The result of System.out.println("\u0394"); is ?. - mr.nothing
This is duplicate of stackoverflow.com/questions/29695918/… (this one has better title.. so duplicating may not be much use ... - Jayan
Official docs: jetbrains.com/help/idea/configuring-output-encoding.html. @CrazyCoder, it needs fixing of settings file paths for all OSes. - Vadzim

5 Answers

31
votes

This works for me.

  1. Close your intellij idea
  2. Search and open file idea.exe.vmoptions inside idea installed, for example: "C:\Program Files\JetBrains\IntelliJ IDEA 2018.3.2\bin". After add next line: -Dfile.encoding=UTF-8
  3. (Optional) if you have file idea64.exe.vmoptions, add the same line too.
  4. Start your intellij idea.
14
votes

try 

-Dconsole.encoding=UTF-8

instead of

-Dfile.encoding=UTF-8
11
votes

You may have modified the wrong file，

not : C:\Program Files\JetBrains\IntelliJ IDEA xxxx\bin\idea64.exe.vmoptions

should be: C:\Users\USER_NAME\.IntelliJIdeaxxxx\config\idea64.exe.vmoptions

you can add both -Dfile.encoding=UTF-8 and -Dconsole.encoding=UTF-8

5
votes

My theory is that your java class file are using "windows-1251" encoding, and you need to set it "UTF-8".

looks at the screenshots below. enter image description here enter image description here

To reset all files encoding, you can manually edit encodings.xml. enter image description here You can change the default file encoding in settings dialog. enter image description here

0
votes

In my case, examining System.out.textOut.out.se.cs in debug hinted that IDEA picked up maven surefire arguments for every JUnit Run Configuration:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <configuration>
        <!-- force 7-bit default encoding to ensure that nothing depends on it -->
        <argLine>-Dfile.encoding=ASCII</argLine>
    </configuration>
</plugin>

I've resolved this by adding -Didea.maven.surefire.disable.argLine=true to the idea64.exe.vmoptions file.

See also: https://www.jetbrains.com/help/idea/configuring-output-encoding.html.