NullPointException while parse "parameters" reference #684
Description
I am trying to upgrade to swagger-parser-1.0.34.jar and my json cannot be parsed now. The json can be parsed by swagger-parser-1.0.26.jar.
Jave converter:
"Swagger swagger = new SwaggerParser().read(swaggerFilePath);"
Below definition of the parameter cannot be parsed(check the "ParamDef3")
"parameters": {
"ParamDef1": {
"name": "paramDef1",
"in": "header",
"description": "paramDef1 desc",
"type": "string",
"required": true
},
"ParamDef2": {
"name": "paramDef2",
"in": "query",
"description": "paramDef2 desc",
"type": "number",
"required": true
},
**"ParamDef3": {
"$ref": "#/parameters/ParamDef4"
},
"ParamDef4": {
"name": "paramDef4",
"in": "query",
"description": "paramDef4 desc for paramDef3 reference",
"type": "number",
"required": true
}**
}It throws NullPointException like below:
java.lang.NullPointerException
at io.swagger.parser.processors.ParameterProcessor.processParameters(ParameterProcessor.java:47)
at io.swagger.parser.processors.OperationProcessor.processOperation(OperationProcessor.java:26)
at io.swagger.parser.processors.PathsProcessor.processPaths(PathsProcessor.java:101)
at io.swagger.parser.SwaggerResolver.resolve(SwaggerResolver.java:50)
at io.swagger.parser.SwaggerParser.read(SwaggerParser.java:67)
at io.swagger.parser.SwaggerParser.read(SwaggerParser.java:54)
Full json see below:
{
"swagger": "2.0",
"info": {
"title": "swagger_validParameters",
"description": "BuildTookit parameter tests",
"version": "1.0.0"
},
"host": "api.uber.com",
"schemes": [
"https"
],
"basePath": "/basePath",
"produces": [
"application/json"
],
"paths": {
"/path1": {
"parameters": [
{
"$ref": "#/parameters/ParamDef1"
},
{
"$ref": "#/parameters/ParamDef3"
},
{
"name": "paramDefinedInPath",
"in": "path",
"description": "paramDefinedInPath desc",
"type": "integer",
"format": "int32",
"required": false,
"allowEmptyValue": true
},
{
"name": "paramDefinedInHeader",
"in": "header",
"description": "paramDefinedInHeader IN Path level",
"type": "integer",
"format": "int32",
"required": false,
"allowEmptyValue": true
},
{
"name": "paramToBeOverride",
"in": "header",
"description": "paramToBeOverride defined in path level. It will be overridded by parameter in operation level",
"type": "integer",
"format": "int32",
"required": true
},
{
"name": "optParamToBeOverride",
"in": "header",
"description": "optParamToBeOverride defined in path level. It will be overridded by parameter in operation level",
"type": "integer",
"format": "int32",
"required": true
},
{
"name": "reqParamToBeOverride",
"in": "header",
"description": "reqParamToBeOverride defined in path level. It will be overridded by parameter in operation level",
"type": "integer",
"format": "int32",
"required": false
}
],
"post": {
"parameters": [
{
"$ref": "#/parameters/ParamDef2"
},
{
"name": "paramToBeOverride",
"in": "header",
"description": "paramToBeOverride in operation level",
"type": "string",
"required": true
},
{
"name": "body",
"description": "paramInBody desc",
"required": true,
"in": "body",
"schema": {
"$ref": "#/definitions/Def1"
}
},
{
"name": "optParamInPath",
"in": "path",
"description": "optParamInPath desc",
"type": "integer",
"format": "int32",
"required": false,
"allowEmptyValue": true
},
{
"name": "optParamInHeader",
"in": "header",
"description": "optParamInHeader desc",
"type": "integer",
"format": "int32",
"required": false,
"allowEmptyValue": true
} ,
{
"name": "optParamToBeOverride",
"in": "header",
"description": "paramToBeOverride in operation level",
"type": "integer",
"format": "int32",
"required": false
},
{
"name": "reqParamToBeOverride",
"in": "header",
"description": "paramToBeOverride in operation level",
"type": "integer",
"format": "int32",
"required": true
}
],
"responses": {
"200": {
"headers" : {
"respHeader1" : {
"type" : "integer"
}
},
"schema": {
"$ref": "#/definitions/Def2"
}
}
}
}
}
},
"parameters": {
"ParamDef1": {
"name": "paramDef1",
"in": "header",
"description": "paramDef1 desc",
"type": "string",
"required": true
},
"ParamDef2": {
"name": "paramDef2",
"in": "query",
"description": "paramDef2 desc",
"type": "number",
"required": true
},
"ParamDef3": {
"$ref": "#/parameters/ParamDef4"
},
"ParamDef4": {
"name": "paramDef4",
"in": "query",
"description": "paramDef4 desc for paramDef3 reference",
"type": "number",
"required": true
}
},
"definitions": {
"Def1": {
"type": "object",
"properties": {
"def1Prop1": {
"type": "integer",
"description": "Position in pagination."
}
}
},
"Def2": {
"type": "object",
"properties": {
"def2Prop1": {
"type": "integer",
"description": "Position in pagination."
},
"def2Prop2": {
"type": "array",
"items": {
"$ref": "#/definitions/Def3"
}
}
}
},
"Def3": {
"type": "object",
"properties": {
"def3Prop1": {
"type": "string",
"description": "Unique identifier for the activity"
}
}
},
"Def4": {
"type": "array",
"items": {
"$ref": "#/definitions/Def3"
},
"minItems" : 1,
"maxItems" : 100
}
}
}