Generated swagger.json does not contain @PostMapping API's, it contains only @GetMapping API's

Here is the error log

2021-06-16 06:52:18,826 ERROR [26991] Skipping process path[/myservice/user/{user_id}/action], method[invokeUserActionsServiceAll] as it has an error. java.lang.NoSuchMethodError: org.springframework.http.MediaType.equalsTypeAndSubtype(Lorg/springframework/util/MimeType;)Z at springfox.documentation.builders.BodyParameterSpecificationProvider.lambda$create$0(BodyParameterSpecificationProvider.java:37) ~[springfox-core-3.0.0.jar:3.0.0] at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:174) ~[?:1.8.0_292] at java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1556) ~[?:1.8.0_292] at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482) ~[?:1.8.0_292] at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) ~[?:1.8.0_292] at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) ~[?:1.8.0_292] at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) ~[?:1.8.0_292] at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:1.8.0_292] at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:485) ~[?:1.8.0_292] at springfox.documentation.builders.BodyParameterSpecificationProvider.create(BodyParameterSpecificationProvider.java:38) ~[springfox-core-3.0.0.jar:3.0.0] at springfox.documentation.builders.RootParameterSpecificationProvider.create(RootParameterSpecificationProvider.java:30) ~[springfox-core-3.0.0.jar:3.0.0] at springfox.documentation.builders.RequestParameterBuilder.build(RequestParameterBuilder.java:160) ~[springfox-core-3.0.0.jar:3.0.0] at springfox.documentation.spring.web.plugins.DocumentationPluginsManager.parameter(DocumentationPluginsManager.java:121) ~[springfox-spring-web-3.0.0.jar:3.0.0] at springfox.documentation.spring.web.readers.operation.OperationParameterReader.readParameters(OperationParameterReader.java:126) ~[springfox-spring-web-3.0.0.jar:3.0.0] at springfox.documentation.spring.web.readers.operation.OperationParameterReader.apply(OperationParameterReader.java:81) ~[springfox-spring-web-3.0.0.jar:3.0.0] at springfox.documentation.spring.web.plugins.DocumentationPluginsManager.operation(DocumentationPluginsManager.java:144) ~[springfox-spring-web-3.0.0.jar:3.0.0] at springfox.documentation.spring.web.readers.operation.ApiOperationReader.read(ApiOperationReader.java:72) ~[springfox-spring-web-3.0.0.jar:3.0.0] at springfox.documentation.spring.web.scanners.CachingOperationReader.lambda$new$0(CachingOperationReader.java:43) ~[springfox-spring-web-3.0.0.jar:3.0.0]