FIX: System.getproperty("user.name") Returns Null

ID: Q177175

The information in this article applies to:

SYMPTOMS

The Microsoft virtual machine (Microsoft VM) build 1518 and earlier returns null while attempting to use System.getProperty("user.name") to determine the users login name.


RESOLUTION

This is a bug and has been fixed in the Microsoft virtual machine that ships with the SDK 2.01 for Java.


STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. This bug has been corrected in the Microsoft VM that is provided in the SDK 2.01 for Java.


MORE INFORMATION

To reproduce the problem:

Create a Java Project and include the following class to it: 


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

}
With earlier Microsoft VMs, this will return null. However with the Microsoft VM included with the SDK 2.01 for Java, it will correctly return the user's login name.


REFERENCES

For the latest Knowledge Base articles and other support information on Visual J++ and the SDK for Java, see the following pages on the Microsoft Technical Support site:

http://support.microsoft.com/support/visualj/

http://support.microsoft.com/support/java/

Additional query words: getProperty user name system properties 


Keywords          : kbcode kberrmsg kbSDKJava150bug kbSDKJava151bug kbSDKJava200bug kbSDKJava201fix JVM 
Version           : WINDOWS:1.51,1.5.1
Platform          : WINDOWS 
Issue type        : kbbug

Last Reviewed: July 26, 1999