--- old/src/share/classes/java/lang/ProcessBuilder.java	Thu Apr 14 12:35:38 2011
+++ new/src/share/classes/java/lang/ProcessBuilder.java	Thu Apr 14 12:35:37 2011
@@ -936,8 +936,13 @@
      * <p>This method checks that the command is a valid operating
      * system command.  Which commands are valid is system-dependent,
      * but at the very least the command must be a non-empty list of
-     * non-null strings.
+     * non-null strings. 
      *
+     * <p>A minimal set of system dependent environment variables may 
+     * be required to start a process on some operating systems. 
+     * As a result, the subprocess may inherit additional environment variable 
+     * settings beyond those in the process builder's {@link #environment()}.
+     *
      * <p>If there is a security manager, its
      * {@link SecurityManager#checkExec checkExec}
      * method is called with the first component of this object's