While loop with nested if statements operates as intended in IDE but goes into an infinite loop in command line

In an assignment for my intro to programming course which uses java, I have written an input validation loop which executes as expected in Dr.Java (the IDE they have requested us to use) but when an invalid input is entered when running in command line, or eclipse, the program goes into an infinite loop as pictured here.

While hand tracing the loop it seems that everything should work as intended. Is there something I am missing here?

I know this can be written by trying and catching an exception, but it was requested that we validate input using the in.hasNextDouble() for our scanner.

while(diameterInputLoop == false)
{ 
/***********************************************************************************************
 * Initialize the Scanner in at the beginning of the loop
 * because invalid inputs will close the scanner to clear it
***********************************************************************************************/ 
  Scanner in = new Scanner(System.in);

/***********************************************************************************************
 * Prompt for Diameter
***********************************************************************************************/
  System.out.print("Enter the jelly bean diameter in cm: ");

/***********************************************************************************************
 * If statement to verify if a number was entered
 * with a nested if statement to check if the value is less than or equal to zero
 * If no number is entered, repeat the input loop
***********************************************************************************************/
  if(in.hasNextDouble())
  {//start valid number if statement
    jellyBeanDiameter = in.nextDouble();
    //set controller to true, exiting loop
    diameterInputLoop = true;

    // check for positive numbers
    if(jellyBeanDiameter > 0 )
    {
      //if diameter is positive, set loop controller to true to exit loop
      diameterInputLoop = true;
    }

    //if a negative number is entered
    else
    {//start negative  check 

      //print error for negative & 0 numbers
      System.out.println("Error: invalid input, diameter must be a number greater than zero");

      //close scanner
      in.close();

      //reset diameter value
      jellyBeanDiameter = 1.0;

      //set controller to false to repeat loop
      diameterInputLoop = false; 

    }//end negative if check{

  }//end valid number if statement

  //if a number was not entered
  else
  {
    //print error asking for number
    System.out.println("Error: invalid input, diameter must be a number.");

   //close scanner
    in.close();

    //reset diameter value
    jellyBeanDiameter = 1.0;

    //set controller to false telling loop to repeat
    diameterInputLoop = false;

  }//end else

}//end while loop