小编Pet*_*wen的帖子

部署我的应用程序时出现错误,如下所示.

Caused by: org.jboss.weld.exceptions.AmbiguousResolutionException: WELD-001318 Cannot resolve an ambiguous dependency between [
Producer Method [String] with qualifiers [@Any @Config] declared as [[method] @Produces @Config public ca.comdev.cdip.mis.enterpriseportal.configuration.ConfigurationProvider.getConfigurationValue(InjectionPoint)], 

Producer Method [String] with qualifiers [@Any @Config] declared as [[method] @Produces @Config public ca.comdev.cdip.mis.enterpriseportal.configuration.ConfigurationProvider.getConfigurationValue(InjectionPoint)]]

我只有这样的方法,其标题看起来像这样

@Produces @Config public String getConfigurationValue(InjectionPoint p) throws ConfigurationException{...}

和班级有这些

@Named
@Singleton
@Startup
public class ConfigurationProvider {...}

请帮忙.这个错误可能比我的代码更模糊.

我有一个在其签名中使用抽象类的接口.然后我的实现在其签名中使用抽象类的子类,但这是不允许的.有人可以帮我吗？我在googles上找到的只是通用接口和抽象类实现......

public MyAbstractClass {
    abstract public void myMethod();
}

public MySubClass : MyAbstractClass {
    override public void myMethod(){
        ...
    }
}

然后我有我的接口/实现..

public interface MyInterface {
    MyAbstractClass myInterfaceMethod(MyAbstractClass blah);
}

public MyImplementation : MyInterface {
    MySubClass myInterfaeMethod(MySubClass blah){
        ...
    }
}

但我得到一个错误,说myInterfaceMethod没有实现接口方法...

救命？