Please see the following code:
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import java.dyn.*;
public class Test {
    public static void foo(int i){}
    public static void main(String argv[]) throws Throwable {
        MethodHandle handle = MethodHandles.lookup().findStatic
            (Test.class, "foo", MethodType.methodType(void.class, int.class));
        handle.invokeGeneric(null);
    }
}
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Its output is:
Exception in thread "main" java.lang.NullPointerException
        at sun.dyn.FromGeneric$A4.invoke_I4(FromGeneric.java:552)
        at sun.dyn.FilterGeneric$F3.invoke_F2(FilterGeneric.java:573)
        at Test.main(Test.java:7)