java泛型问题,如何实现这样的功能

[vcshcn]

这段代码片段会报个warning，如何修改去掉警告呢？或者如何实现这个效果？
public static HashMap<Class, IService> services = null;

public static <T extends IService> T getService(Class<T> klass) {
return (T) services.get(klass);
}

我想通过传入class对象，map返回的对象可以不进行类型转换就使用，如这样：
class TestService implements IService {}
putService(TestService.class, new TestService());
TestService test = getService(TestService.class)

[laiwusheng]

不支持吧

[sword_caihui]

看看这样是不是，代码如下：
public interface IService {
}
------------------------------
public class Server implements IService {
private String message;

public Server(String str) {
this.message = str;
}

public void test() {
System.out.println("server"+this.message);
}
}
------------------------------
public class Server2 implements IService {
private String message;

public Server2(String str) {
this.message = str;
}

public void test() {
System.out.println("server2"+this.message);
}
}
------------------------------
import java.util.HashMap;

public class Template<T extends IService> {

private static HashMap<Class, IService> services = new HashMap<Class, IService>();

public static <T extends IService> T getService(Class<T> klass) {
return (T) services.get(klass);
}

public static <T extends IService> T putService(T ser) {
services.put(ser.getClass(), ser);
return ser;
}
}
------------------------------
public class MainTest {
public static void main(String[] args) {
Template<IService> temp = new Template<IService>();
temp.putService(new Server("test"));
temp.putService(new Server2("test2"));

temp.getService(Server.class).test();
temp.getService(Server2.class).test();
}
}

[vcshcn]

擦除类型会报个warning，如何不报warning呢

[laiwusheng]

java6.0支持泛型了

[likgui]

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