Java 中被static 修饰的属性，方法和代码块在什么时候加载

intellij社区版+jdk.7

package com.static_life;
import com.SVS2;
/**
* Created by Administrator on 2016/12/21.
*/
public class StaticVariableStart {

public static int  age = 124;
public String name;

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public static void main(String [] args){

SVS2 svs2;//breakpoint
svs2= new SVS2();//
String s = SVS2.string;

StaticVariableStart staticVariableStart = new StaticVariableStart();

System.out.print(SVS2.class.getGenericSuperclass());

}
}

在主方法中设置多个断点

package com;

/**
* Created by Administrator on 2016/12/21.
*/
public class SVS2 {

public static String string = "";

{
System.out.println("这是代码块");
}

static {

System.out.println("这是SVS2 的静态代码块");
}

}

breakpoint1：SVS2.string = Class not load：com.SVS2；静态池中已经存在StaticVariableLife.age = 124.（No executable code）
breakpoint2：SVS2.string = ""；SVS2加载，取到值，并且 自动执行了SVS2中的代码块，静态代码块优先。