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IllegalArgumentException: invalid number of arguments in Java Constructor.newInstance ()

Consider the following code:

public class StartUp {

    public StartUp(String[] test){}

    public static void main(String[] args) throws Exception{
        Constructor cd = StartUp.class.getConstructor(String[].class);
        System.out.println(cd.newInstance(new String[]{}).toString());
    }
}

What about him? I get the following exception:

An exception in the "main" thread java.lang.IllegalArgumentException: invalid number of arguments at sun.reflect.NativeConstructorAccessorImpl.newInstance0 (native method) at sun.reflect.NativeConstructorAccessorImpl.newInstance (NativeConstructorAccessorImpl.l (DelegatingConstructorAccessorImpl.java:27) in java.lang.reflect.Constructor.newInstance (Constructor.java=13) at com.test.StartUp.main (StartUp.java:10)

+5
2

String[] Object[] , , . :

Object arg = new String[0];
System.out.println(cd.newInstance(arg).toString());


System.out.println(cd.newInstance(((Object)new String[0]).toString());

:

System.out.println(cd.newInstance(new Object[] { new String[0] }).toString());

varargs : (

+21

dp4j , :

$ vim ReflectedAcces.java
 class StartUp {

    private StartUp(String[] test){}

}

public class ReflectedAcces{

        @com.dp4j.InjectReflection
    public static void main(String[] args) throws Exception{
                StartUp su = new StartUp(new String[]{});
                System.out.println(su.toString());
    }

}


$ javac -cp dp4j-1.0-jar-with-dependencies.jar -Averbose=true ReflectedAcces.java 
...
ReflectedAcces.java:10: Note: 
class StartUp {

    private StartUp(String[] test) {
    }
}
public class ReflectedAcces {

    public ReflectedAcces() {
        super();
    }

    @com.dp4j.InjectReflection()
    public static void main(String[] args) java.lang.ClassNotFoundException, java.lang.NoSuchFieldException, java.lang.IllegalAccessException, java.lang.NoSuchMethodException, java.lang.reflect.InvocationTargetException, java.lang.InstantiationException {
        final java.lang.reflect.Constructor startUpConstructor = Class.forName("StartUp").getDeclaredConstructor(.java.lang.String[].class);
        startUpConstructor.setAccessible(true);
        StartUp su = (.StartUp)startUpConstructor.newInstance(new .java.lang.Object[1][]{new String[]{}});
        System.out.println(su.toString());
    }
}
-1

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