com_baeldung_springbootmvc_SpringBootMvcApplicationIntegrationTest_java
org.springframework.util.ObjectUtils
public static boolean isArray(@Nullable Object obj) {
        return obj != null && obj.getClass().isArray();
    }
 -> java.lang.Object.getClass(): java.lang.Class -> java.lang.Class.isArray(): boolean
 [CALL] -> java.lang.Object.getClass(): java.lang.Class -> java.lang.Class.isArray(): boolean [EXIT]