Why are static variables considered evil?

I am a Java programmer who is new to the corporate world. Recently I've developed an application using Groovy and Java. All through the code I've used quite a good number of statics. I was asked by the senior technical lot to cut out on the number of statics used. I've googled about the same, and I find that many programmers are fairly against using static variables.

How do you Require Login for Media Files in Django

I'm serving "sensitive" information in downloadable PDF's and Spreadsheets within a user registration section of a site.

Static classes in PHP via abstract keyword?

According to the PHP manual , a class like this:

abstract class Example {}

what"s the point of declaring static functions in PHP?

So in PHP you can have

Class A{

   function B(){}

}

Behaviour of final static method

I have been playing around with modifiers with static method and came across a weird behaviour.

Are Java static initializers thread safe?

I'm using a static code block to initialize some controllers in a regsitry I have. My question is therefore, can I guarantee that this static code block will only absolutely be called once when the class is first loaded? I understand I cannot guarantee when this code block will be called, Im guessing its when the Classloader first loads it. I realize I could synchronize on the class in the static code block, but my guess is this is actually what happens anyway?

Unable to get Static declaration behaviour in PHP

class StaticTester

   {

      private static $id=0;

      function__construct()

     {

          self::$id+=1;

     }

    public static function checkIdFromStaticMethod()

   {

      echo "Current Id from Static method is ".self::$id;

    }





 }



  $st1=new StaticTester();

 StaticTester::checkIdFromStaticMethod();       // this outputs 1.