NullpointerException in mavan code generation when certification validation is disabled

[vijayrcse]

Hi

I am using the following plugin for the code generation for my openAPI spec 3.0

<groupId>io.swagger.codegen.v3</groupId> <artifactId>swagger-codegen-maven-plugin</artifactId>

In the plugin configuration i have set the following property to true

<environmentVariables>
<io.swagger.v3.parser.util.RemoteUrl.trustAll>true</io.swagger.v3.parser.util.RemoteUrl.trustAll>
</environmentVariables>

schema: $ref: 'https://myswaggerhubdomain/v1/domains/Global_Domains/V0/#/responses/ErrorResponse'

But the parser throwing the NullpointerException as follows. Could you please advise what could be the problem ?

java.lang.NullPointerException at io.swagger.v3.parser.util.OpenAPIDeserializer.getSchema(OpenAPIDeserializer.java:2438) at io.swagger.v3.parser.ResolverCache.loadRef(ResolverCache.java:152) at io.swagger.v3.parser.processors.ExternalRefProcessor.processRefToExternalSchema(ExternalRefProcessor.java:56) at io.swagger.v3.parser.processors.SchemaProcessor.processReferenceSchema(SchemaProcessor.java:214) at io.swagger.v3.parser.processors.SchemaProcessor.processSchema(SchemaProcessor.java:37) at io.swagger.v3.parser.processors.ResponseProcessor.processResponse(ResponseProcessor.java:52) at io.swagger.v3.parser.processors.OperationProcessor.processOperation(OperationProcessor.java:67) at io.swagger.v3.parser.processors.PathsProcessor.processPaths(PathsProcessor.java:84) at io.swagger.v3.parser.OpenAPIResolver.resolve(OpenAPIResolver.java:49) at io.swagger.v3.parser.OpenAPIV3Parser.readLocation(OpenAPIV3Parser.java:67) at io.swagger.parser.OpenAPIParser.readLocation(OpenAPIParser.java:16) at io.swagger.codegen.v3.config.CodegenConfigurator.toClientOptInput(CodegenConfigurator.java:517) at io.swagger.codegen.v3.maven.plugin.CodeGenMojo.execute(CodeGenMojo.java:525)