Not able to build generated java implementation for Json spec file

Created by: ngp-star

Bug Report Checklist

Have you provided a full/minimal spec to reproduce the issue?
Have you validated the input using an OpenAPI validator (example)?
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Description

openapi-generator version

4.3.0

OpenAPI declaration file content or url

below is the code spec of the json file below file content is just content of model.

PublicKeyDto: { description: "Public Key", properties: { value: { allowEmptyValue: false, type: "string", description: "value" }, issuer: { allowEmptyValue: false, type: "string", description: "issuer" }, alg: { allowEmptyValue: false, type: "string", description: "alg" }, keys: { items: { $ref: "#/definitions/MapOfstringAndobject" }, allowEmptyValue: false, type: "array", description: "keys" } }, title: "PublicKeyDto", type: "object" } { title: "MapOfstringAndobject", additionalProperties: { type: "object" }, type: "object" }

Command line used for generation

openapi-generator generate -i swagger.json -g java -o csp-java-bindings --package-name com.org.csp.openapi_client

Steps to reproduce

after generation try to build the implementation using mvn clean package . below is the error trace. Compilation failure [ERROR] /dbc/sc-dbc2115/ngp/csp-python-bindings/src/main/java/org/openapitools/client/model/PublicKeyDto.java:[130,18] error: incompatible types: ArrayList<Map> cannot be converted to List<Map<String,Object>> in the implementation of PublicKeyDto.java following assignment is happening which is not correct according to java syntax.

public PublicKeyDto addKeysItem(Map<String, Object> keysItem) { if (this.keys == null) { this.keys = new ArrayList<Map>();//in this line error is coming. } this.keys.add(keysItem); return this; } this.keys is declared as private List<Map<String, Object>> keys = null;