java.lang.ClassCastException - 访问Object数组的Java数组，如2维对象数组

In order to troubleshoot the Object array created in C code with JNI, I have created the pure Java code with an array of Object arrays as follows. I would like to access this array in the manner like two dimensional Object array (Object[][]) using [][] operator. However the code crashes when casting the array to Object[][] with the following exception.In order to troubleshoot the Object array creat