Here is the Exception log.
2019-10-04 12:43:40.743�[0;39m �[32m INFO�[0;39m �[35m12734�[0;39m �[2m---�[0;39m �[2m[ main]�[0;39m �[36mpleSpringKotlinMicroserviceApplicationKt�[0;39m �[2m:�[0;39m No active profile set, falling back to default profiles: default
�[2m2019-10-04 12:43:41.211�[0;39m �[33m WARN�[0;39m �[35m12734�[0;39m �[2m---�[0;39m �[2m[ main]�[0;39m �[36mConfigServletWebServerApplicationContext�[0;39m �[2m:�[0;39m Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: @Configuration class 'SwaggerConfig' may not be final. Remove the final modifier to continue.
Offending resource: class path resource [pl/piomin/services/config/SwaggerConfig.class]
�[2m2019-10-04 12:43:41.221�[0;39m �[32m INFO�[0;39m �[35m12734�[0;39m �[2m---�[0;39m �[2m[ main]�[0;39m �[36mConditionEvaluationReportLoggingListener�[0;39m �[2m:�[0;39m
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
�[2m2019-10-04 12:43:41.227�[0;39m �[31mERROR�[0;39m �[35m12734�[0;39m �[2m---�[0;39m �[2m[ main]�[0;39m �[36mo.s.boot.SpringApplication �[0;39m �[2m:�[0;39m Application run failed
org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: @Configuration class 'SwaggerConfig' may not be final. Remove the final modifier to continue.
Offending resource: class path resource [pl/piomin/services/config/SwaggerConfig.class]
at org.springframework.beans.factory.parsing.FailFastProblemReporter.error(FailFastProblemReporter.java:72) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.context.annotation.ConfigurationClass.validate(ConfigurationClass.java:217) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.validate(ConfigurationClassParser.java:208) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:316) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:232) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:705) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:744) [spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:391) [spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:312) [spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204) [spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
at pl.piomin.services.SampleSpringKotlinMicroserviceApplicationKt.main(SampleSpringKotlinMicroserviceApplication.kt:15) [classes/:na]