How to set default language for java keytool?

Question

I use Windows OS with English language and US keyboard setting. I use this command to generate keystore. It works fine.

C:\java6\jre\bin\keytool -genkey -keyalg RSA -alias mykey -validity 3652 -keystore C:\mykeystore -storepass 111111111 < data.txt

The data.txt

My name
My org unit
My org
My city
My state
ch
yes

However, this program cannot work normally on Windows with German language and keyboard setting. I must change the word " yes "" to " ja " in data.txt to make it works.

It isn't good to modify the data.txt.

Is there any way to set English as default language for keytool?

Answer 1

In a nutshell you must pass the -Duser.language=en option to the Java machine. I know of two ways to do this:

1. For just one invocation, specify the -J-Duser.language=en option on the keytool command line, eg

    keytool -J-Duser.language=en -genkey -keyalg RSA -alias mykey -validity 3652 -keystore C:\\mykeystore -storepass 111111111 < data.txt 

   See also SO: Forcing the use of english in JDK7 tools

2. To change Java language globally, set the JAVA_TOOL_OPTIONS environment variable to have the -Duser.language=en value.