title: ANT_OPTS -Xmx1024m not working
body: <p>I am setting ANT_OPTS in the environment to "-Xms256m -Xmx1024m". After setting this, I am not able to run ant files from command prompt. It throws me an error of:</p>
  
  <p>"Error occurred during initialization of VM
  Could not reserve enough space for object heap
  Could not create the Java virtual machine."</p>
  
  <p>Although I have enough physical memory available (more than 2048m available) to allot 1024m for ANT_OPTS, but still it throws the above error. Can there be any other reason why I cannot set Xmx to 1024m ?</p>