关于接收泛型数组时这里的public static <T> void怎么理解？

public class Test2{
public static void main(String[] args){
Integer i[] = fun1(1,2,3,4,5,6);
fun2(i);
}
public static T[] fun1(T...arg){
return arg;
}
public static void fun2(T param[]){
System.out.print("接收泛型数组:");
for(T t : param){
System.out.print(t + ",");
}
System.out.println();
}
}

由传递的参数可以推断出T的类型