jxcd opened a new issue, #10846:
URL: https://github.com/apache/ignite/issues/10846
I have a class
```java
public record Coordinate(
Integer id,
Integer x,
Integer y,
Integer z
) {}
```
It will report an exception when using when use `cache.get(key)` , the cache
type is `org.apache.ignite.IgniteCache<String, Object> cache`
exception is:
```
Caused by: class org.apache.ignite.binary.BinaryObjectException: Failed to
deserialize object [typeName=com.me.boot.dataignite.boot.dto.Coordinate]
Caused by: class org.apache.ignite.binary.BinaryObjectException: Failed to
read field [name=id]
Caused by: class org.apache.ignite.binary.BinaryObjectException: Failed to
set value for field: private final java.lang.Integer
com.me.boot.dataignite.boot.dto.Coordinate.id
Caused by: java.lang.IllegalAccessException: Can not set final
java.lang.Integer field com.me.boot.dataignite.boot.dto.Coordinate.id to
java.lang.Integer
```
then when I debug, find
`org.apache.ignite.internal.binary.BinaryClassDescriptor#read`, in `switch
(mode) case OBJECT:`:
The process of deserialization is to use `res = newInstance()` create res
first, and then in `info.read(res, reader)` use `field.set(obj, val)` set field
value, **but when Field is final, an exception will be throws**
For the Record class, I currently add a piece of code to solve the
deserialization problem:
```java
case OBJECT:
if (Record.class.isAssignableFrom(cls)) {
// the record class default has All-args constructor
// read all field value to Object[] values
Object[] values = new Object[fields.length];
for (int i = 0; i < fields.length; i++) {
BinaryFieldAccessor fieldAccessor = fields[i];
Object val = reader.readField(fieldAccessor.id);
values[i] = val;
}
// invoke All-args constructor to create res
Constructor<?> constructor =
cls.getDeclaredConstructors()[0];
res = constructor.newInstance(values);
} else {
res = newInstance();
reader.setHandle(res);
for (BinaryFieldAccessor info : fields)
info.read(res, reader);
}
break;
```
But besides this way, is there any other way?
- like only `@Override
org.apache.ignite.internal.binary.BinaryClassDescriptor#read` and use it, no
need to modify dependent source code
- like set BinaryConfiguration, but `setSerializer(BinarySerializer
serializer)` doesn't seem to work
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