Re: [classlib][security] Changing system property java.home may cause incorrect initialization of java.security.Security class

Sat, 25 Nov 2006 13:31:42 -0800 


Tim Ellison wrote:

Geir Magnusson Jr. wrote:

Tim Ellison wrote:

Geir Magnusson Jr. wrote:

Isn't java.home set on vm start and immutable?

No.

"No" what?


?? It is untrue that java.home is set on vm start and immutable.

e.g.

  public static void main(String[] args) {
    System.out.println(System.getProperty("java.home"));
    System.setProperty("java.home", "anything I want it to be");
    System.out.println(System.getProperty("java.home"));
  }

produces:

  C:\java\IBM JDK 5.0\SR3\jre
  anything I want it to be





Thanks - why would anyone want this to be mutable?

geir














    











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