Static Generic methods in .Net vs Java

I am unsure about something.

In C#, I can do the following.

public class Helper<T> where T : new()
{
    public static T SomeHelperFunction(string strValue)
    {
        return new T();
    }
}

Here, the static method can clearly make use of the type passed through to the Helper class.

Here is my exact attempt in Java/Android

public class Helper<T> {
    public static T SomeHelperFunction(String strValue){
        //some code
    }
}

Java complains about the T used in the SomeHelperFunction. Why does .Net allow this, but not Java, or am I missing something?

How can I create the .Net class in Java?