java - Static block is never run -

I have a utility class that looks like this:

  Public Ultimate Class MyUtils {The public stable final list & lt; String & gt; MY_VALUES = New Arrestist & lt; String & gt; (); {MY_VALUES.add ("foo"); MY_VALUES.add ("bar"); }}   
 I call it from another class like this:  
  MyUtils.MY_VALUES   
 If I do so, the list is empty and if I debug it, then I think the static block never runs.  
 As I understand the answers and the block should be run when  is assigned a stable area of ​​class , which I am currently doing. I also tried to make the variable non-last to complete the condition "a non-static static field is used ".  
 I can use an init method, in other questions and ALS, but I still want to understand why it is not working at the first place, although I think the language specification The conditions are fulfilled from  
 
 
 
 You must add  static  keyword to your block to make it static :  
  public final range MyUtils {public static final list & lt; String & gt; MY_VALUES = New Arrestist & lt; String & gt; (); Stable {MY_VALUES.add ("foo"); MY_VALUES.add ("bar"); }}   
 A  initialization block  is created square each time.  
 A  Static initialization block  becomes called only once at the beginning of your program.