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Openapi enum null values
Hi Team, Following the specifications here https://swagger.io/docs/specification/data-models/enums/. I want to have enums that can have null values thus based on the above doc I created an open API spec something like this openapi: 3.0.1 info: title: Test description: Test API contact: name: a url: http://www.google.com email: user@test.com version: '1.0' paths: /v1/getItems: summary: 'get items' description: 'get items' post: summary: items get operationId: getItems x-grantTypeRequirement: 'client_credentials' tags: - items responses: 200: description: Success components: schemas: ItemType: description: 'The Type of the Item' type: string nullable: true enum: - "PHYSICAL" - "DIGITAL" - null Item: type: object properties: type: allOf: - $ref: '#/components/schemas/ItemType' - type: object but when I build this with maven I get the following error [ERROR] [0:0]: unexpected error in Open-API generation java.lang.RuntimeException: Could not process model 'ItemType'.Please make sure that your schema is correct! at org.openapitools.codegen.DefaultGenerator.generateModels (DefaultGenerator.java:472) at org.openapitools.codegen.DefaultGenerator.generate (DefaultGenerator.java:923) at org.openapitools.codegen.plugin.CodeGenMojo.execute (CodeGenMojo.java:727) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137) at com.soebes.maven.plugins.iterator.IteratorMojo.executeMojo (IteratorMojo.java:406) at com.soebes.maven.plugins.iterator.IteratorMojo.handlePluginExecution (IteratorMojo.java:305) at com.soebes.maven.plugins.iterator.IteratorMojo.execute (IteratorMojo.java:235) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289) at org.apache.maven.cli.MavenCli.main (MavenCli.java:193) at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke (Method.java:498) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347) Caused by: java.lang.NullPointerException at org.openapitools.codegen.DefaultCodegen.postProcessModelsEnum (DefaultCodegen.java:365) at org.openapitools.codegen.languages.SpringCodegen.postProcessModelsEnum (SpringCodegen.java:815) at org.openapitools.codegen.languages.AbstractJavaCodegen.postProcessModels (AbstractJavaCodegen.java:999) at org.openapitools.codegen.DefaultGenerator.processModels (DefaultGenerator.java:1233) at org.openapitools.codegen.DefaultGenerator.generateModels (DefaultGenerator.java:467) at org.openapitools.codegen.DefaultGenerator.generate (DefaultGenerator.java:923) at org.openapitools.codegen.plugin.CodeGenMojo.execute (CodeGenMojo.java:727) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137) at com.soebes.maven.plugins.iterator.IteratorMojo.executeMojo (IteratorMojo.java:406) at com.soebes.maven.plugins.iterator.IteratorMojo.handlePluginExecution (IteratorMojo.java:305) at com.soebes.maven.plugins.iterator.IteratorMojo.execute (IteratorMojo.java:235) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289) at org.apache.maven.cli.MavenCli.main (MavenCli.java:193) at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke (Method.java:498) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347) [ERROR] java.lang.RuntimeException: Could not process model 'ItemType'.Please make sure that your schema is correct! at org.openapitools.codegen.DefaultGenerator.generateModels (DefaultGenerator.java:472) at org.openapitools.codegen.DefaultGenerator.generate (DefaultGenerator.java:923) at org.openapitools.codegen.plugin.CodeGenMojo.execute (CodeGenMojo.java:727) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137) at com.soebes.maven.plugins.iterator.IteratorMojo.executeMojo (IteratorMojo.java:406) at com.soebes.maven.plugins.iterator.IteratorMojo.handlePluginExecution (IteratorMojo.java:305) at com.soebes.maven.plugins.iterator.IteratorMojo.execute (IteratorMojo.java:235) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289) at org.apache.maven.cli.MavenCli.main (MavenCli.java:193) at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke (Method.java:498) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347) Caused by: java.lang.NullPointerException at org.openapitools.codegen.DefaultCodegen.postProcessModelsEnum (DefaultCodegen.java:365) at org.openapitools.codegen.languages.SpringCodegen.postProcessModelsEnum (SpringCodegen.java:815) at org.openapitools.codegen.languages.AbstractJavaCodegen.postProcessModels (AbstractJavaCodegen.java:999) at org.openapitools.codegen.DefaultGenerator.processModels (DefaultGenerator.java:1233) at org.openapitools.codegen.DefaultGenerator.generateModels (DefaultGenerator.java:467) at org.openapitools.codegen.DefaultGenerator.generate (DefaultGenerator.java:923) at org.openapitools.codegen.plugin.CodeGenMojo.execute (CodeGenMojo.java:727) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137) at com.soebes.maven.plugins.iterator.IteratorMojo.executeMojo (IteratorMojo.java:406) at com.soebes.maven.plugins.iterator.IteratorMojo.handlePluginExecution (IteratorMojo.java:305) at com.soebes.maven.plugins.iterator.IteratorMojo.execute (IteratorMojo.java:235) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289) at org.apache.maven.cli.MavenCli.main (MavenCli.java:193) at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke (Method.java:498) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)2.1KViews0likes1Comment