Add @Method support for EncodableStringAnnotation

### Feature Summary

Some java classes using serializability are difficult to migrate to scala, `EncodableStringAnnotation `can be used in those cases in the `method `target as needed.

### Proposed Solution or Design

```
@EncodableStringAnnotation
public String foo()....
```

### Impact / Priority

(P2)Medium – useful enhancement

### Affected Area

_No response_