Equivalent paths not supported

[joelfoliveira]

When using a Spec with equivalent paths (e.g. /projects/{id:int} and /projects/{uid:string}) openapi-diff outputs the following error:

Unexpected exception. Reason: Two path items have the same signature: /projects/{}
java.lang.IllegalArgumentException: Two path items have the same signature: /projects/{}
        at org.openapitools.openapidiff.core.compare.PathsDiff.lambda$null$1(PathsDiff.java:50)
        at java.util.function.BinaryOperator.lambda$minBy$0(BinaryOperator.java:59)
        at java.util.stream.ReduceOps$2ReducingSink.accept(ReduceOps.java:123)
        at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
        at java.util.Iterator.forEachRemaining(Iterator.java:116)
        at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
        at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)
        at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
        at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
        at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
        at java.util.stream.ReferencePipeline.reduce(ReferencePipeline.java:546)
        at java.util.stream.ReferencePipeline.min(ReferencePipeline.java:587)
        at org.openapitools.openapidiff.core.compare.PathsDiff.lambda$diff$3(PathsDiff.java:48)
        at java.util.LinkedHashMap$LinkedKeySet.forEach(LinkedHashMap.java:559)
        at org.openapitools.openapidiff.core.compare.PathsDiff.diff(PathsDiff.java:41)
        at org.openapitools.openapidiff.core.compare.OpenApiDiff.compare(OpenApiDiff.java:95)
        at org.openapitools.openapidiff.core.compare.OpenApiDiff.compare(OpenApiDiff.java:66)
        at org.openapitools.openapidiff.core.OpenApiCompare.fromSpecifications(OpenApiCompare.java:101)
        at org.openapitools.openapidiff.core.OpenApiCompare.fromLocations(OpenApiCompare.java:90)
        at org.openapitools.openapidiff.cli.Main.main(Main.java:169)

Equivalent paths are not supported in the swagger 2.0 specification. Validation tools output the following error: "Equivalent paths are not allowed."

But since parameter overloading is supported in openapi 3.0 equivalent paths should be supported.
When using a spec like the one below in openapi 3.0 validators, no errors are outputted. But when running the openapi-diff the error "Unexpected exception. Reason: Two path items have the same signature" is displayed.

Sample spec with equivalent paths (parameter overloading):

openapi: 3.0.2
info:
  title: Projects API
  version: 1.0.0
paths:
  /projects/{id}:
    get:
      parameters:
        - in: path
          name: id
          required: true
          schema:
            type: integer
            format: int64
          description: The Project ID
      responses:
        '200':
          description: 'Success'     
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Project'
  /projects/{uid}:
    get:
      parameters:
        - in: path
          name: uid
          required: true
          schema:
            type: string
            format: uuid
          description: The Project ID
      responses:
        '200':
          description: 'Success'     
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Project'
components:
  schemas:
    Project:
      type: object
      properties:
        id:
          type: integer
        uid:
          type: string
        name:
          type: string
      required:  
        - id
        - uid
        - name