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javasystem-properties

Change user.home system property

How do I change the user.home system property from outside my java program, so that it thinks it's a different directory from D:\Documents and Settings\%USERNAME%? Via environment variables, or VM arguments?

Solution

  • Setting VM argument should work:

    java -Duser.home=<new_location> <your_program>

    Here's a test case:

    public class test {
  public static void main(String[] args) {
    System.out.println(System.getProperty("user.home"));
  }
}

    Tested with java 1.5.0_17 on Win XP and Linux

    java test
/home/ChssPly76

java -Duser.home=overwritten test
overwritten