FULL PRODUCT VERSION :
java version "1.8.0_144"
Java(TM) SE Runtime Environment (build 1.8.0_144-b01)
Java HotSpot(TM) 64-Bit Server VM (build 25.144-b01, mixed mode)

FULL OS VERSION :
Microsoft Windows [Version 6.1.7601]

A DESCRIPTION OF THE PROBLEM :
Running the attached code with the -XX:+UseG1GC flag causes a double that is in scope and declared as final to be changed from a value of 20 to a value of 0. It is cleared during a loop that is writing to an array of enums. 

THE PROBLEM WAS REPRODUCIBLE WITH -Xint FLAG: No

THE PROBLEM WAS REPRODUCIBLE WITH -server FLAG: Yes

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile the attached source and run it with the -XX:+UseG1GC flag

EXPECTED VERSUS ACTUAL BEHAVIOR :
Expected Result: "Incrementing Cell Size 21.0" is printed to the console.
Actual Result: "Now it's broken. Iteration: ######" is repeatedly printed to the console after the variable values changes to 0 in the loop.
REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
/**
 * @author bkirst
 *
 */

public class BugTest
{
  public enum EnumUTMHemisphere
  {
    N, S;

    public String value()
    {
      return name();
    }

    public static EnumUTMHemisphere fromValue(String v)
    {
      return valueOf(v);
    }
  }

  /**
   * @param args
   */
  public static void main(String[] args)
  {
    fillArray(20);
  }

  public static void fillArray(double cellSize)
  {
    final double cellSize_m = cellSize;
    EnumUTMHemisphere hemisphere = EnumUTMHemisphere.N;
    EnumUTMHemisphere[] hemispheres = new EnumUTMHemisphere[565504];

    for (int i = 0; i < 565504; i++)
    {
      hemispheres[i] = hemisphere;
      if (cellSize_m == 0)
      {
        System.out.println("Now it's broken. Iteration: " + i + " " + cellSize_m);
      }
    }
    System.out.println("Incrementing Cell Size " + (cellSize_m + 1));
  }
}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Don't use the G1 Garbage Collector, or use the -Xint flag