openapi generator maven插件：多态支持

Question

我已经用多态语法编写了YAML文件，但是每当maven插件解析具有多态架构的定义时，我都会得到一个nullpointer错误。

“ openapi-generator-maven-plugin”是否支持多态YAML文件来生成Java存根？

一个多态定义的例子：

IRFloatSwapLegDO:
    title: IRFloatSwapLegDO
    allOf:
      - $ref: '#/definitions/IRSwapLegDO'
      - type: object
        properties:
          amortizationSchedule:
            $ref: '#/definitions/AmortizationScheduleDO'
          compoundingSchedule:
            $ref: '#/definitions/CompoundingScheduleDO'
          couponSchedule:
            $ref: '#/definitions/CouponScheduleDO'
          currency:
            $ref: '#/definitions/CurrencyDO'
          dayCountConvention:
            type: string
          fixInArrears:
            type: boolean
          fixingMultiplier:
            type: number
            format: double
          fixingSchedule:
            $ref: '#/definitions/CompoundingScheduleDO'
          irSwapLegType:
            type: string
            enum:
              - IRFixedSwapLeg
              - IRFloatSwapLeg
          irUnderlying:
            $ref: '#/definitions/IRUnderlyingDO'
          legID:
            type: string
          notional:
            type: number
            format: double
          notionalExchange:
            $ref: '#/definitions/NotionalExchangeDO'
          overriddenFixings:
            $ref: '#/definitions/CouponScheduleDO'
          payAtStart:
            type: boolean
          schedule:
            $ref: '#/definitions/ScheduleDO'
        title: IRFloatSwapLegDO

以下是我得到的例外情况：

java.lang.NullPointerException
        at io.swagger.v3.parser.util.OpenAPIDeserializer.getObject(OpenAPIDeserializer.java:730)
        at io.swagger.v3.parser.util.OpenAPIDeserializer.getSchema(OpenAPIDeserializer.java:1957)
        at io.swagger.v3.parser.ResolverCache.loadRef(ResolverCache.java:147)
        at io.swagger.v3.parser.processors.ExternalRefProcessor.processRefToExternalSchema(ExternalRefProcessor.java:48)
        at io.swagger.v3.parser.processors.ExternalRefProcessor.processRefSchema(ExternalRefProcessor.java:644)
        at io.swagger.v3.parser.processors.ExternalRefProcessor.processRefToExternalSchema(ExternalRefProcessor.java:115)