检测 Java 中对象是否为 Kotlin 数组

import java.lang.annotation.Annotation;
import java.lang.reflect.Method;

public class KotlinArrayDetection {

    public static boolean isKotlinArray(Object o) {
        if (o == null) {
            return false;
        }

        // Check if the object is an array directly.
        if (o.getClass().isArray()) {
            return true;
        }

        // If the object is an annotation, use annotationType to get the actual type.
        if (o instanceof Annotation) {
            Class<?> annotationType = ((Annotation) o).annotationType();
            try {
                Method valueMethod = annotationType.getMethod("value"); // Assuming the array is in 'value' field
                Class<?> returnType = valueMethod.getReturnType();
                return returnType.isArray();
            } catch (NoSuchMethodException e) {
                // Handle the case where the annotation doesn't have a 'value' method
                return false;
            }
        }

        return false;
    }

    public static void main(String[] args) throws NoSuchMethodException {
        // Example usage (replace with your actual Kotlin annotation instance)
        // This example requires creating a Kotlin annotation and accessing it from Java
        // For simplicity, we simulate an array check:
        Integer[] intArray = new Integer[5];
        System.out.println("Is intArray a Kotlin array? " + isKotlinArray(intArray));

        // Simulate checking an annotation (requires actual Kotlin annotation setup):
        // Annotation myAnnotation = ... (obtain your Kotlin annotation instance)
        // System.out.println("Is myAnnotation's value a Kotlin array? " + isKotlinArray(myAnnotation));
    }
}