Adding maven dependency gives a specific error during my spring batch - spring

I am working on a batch and I face a problem. I have identified the cause of my issue but I am not able to solve it.
As soon as I add a dependency in my pom I start to get an error
The maven dependency is
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
</dependency>
My pom is as shown below
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.edf.fr.batch</groupId>
<artifactId>edf-batch</artifactId>
<version>0.0.1-SNAPSHOT</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.6.RELEASE</version>
</parent>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-batch</artifactId>
</dependency>
<dependency>
<groupId>org.hsqldb</groupId>
<artifactId>hsqldb</artifactId>
</dependency>
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.1-901-1.jdbc4</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Error I get is this
java.lang.NoClassDefFoundError: javax/persistence/EntityManagerFactory
at
org.springframework.data.jpa.util.BeanDefinitionUtils.(BeanDefinitionUtils.java:53)
~[spring-data-jpa-1.11.6.RELEASE.jar:na] at
org.springframework.data.jpa.repository.support.EntityManagerBeanDefinitionRegistrarPostProcessor.postProcessBeanFactory(EntityManagerBeanDefinitionRegistrarPostProcessor.java:54)
~[spring-data-jpa-1.11.6.RELEASE.jar:na] at
org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:281)
~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:176)
~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:687)
~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:525)
~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693)
[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at
org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360)
[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:303)
[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:1118)
[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:1107)
[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at
com.edf.fr.batch.MarcheBatchApplication.main(MarcheBatchApplication.java:10)
[classes/:na] Caused by: java.lang.ClassNotFoundException:
javax.persistence.EntityManagerFactory at
java.net.URLClassLoader.findClass(URLClassLoader.java:381)
~[na:1.8.0_60] at
java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_60]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
~[na:1.8.0_60] at
java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_60]
... 12 common frames omitted
2017-08-14 16:18:43.676 INFO 11676 --- [ main]
s.c.a.AnnotationConfigApplicationContext : Closing
org.springframework.context.annotation.AnnotationConfigApplicationContext#48a242ce:
startup date [Mon Aug 14 16:18:42 CEST 2017]; root of context
hierarchy 2017-08-14 16:18:43.677 WARN 11676 --- [ main]
s.c.a.AnnotationConfigApplicationContext : Exception thrown from
LifecycleProcessor on context close
java.lang.IllegalStateException: LifecycleProcessor not initialized -
call 'refresh' before invoking lifecycle methods via the context:
org.springframework.context.annotation.AnnotationConfigApplicationContext#48a242ce:
startup date [Mon Aug 14 16:18:42 CEST 2017]; root of context
hierarchy at
org.springframework.context.support.AbstractApplicationContext.getLifecycleProcessor(AbstractApplicationContext.java:427)
[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:999)
[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:958)
[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:750)
[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:314)
[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:1118)
[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:1107)
[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at
com.edf.fr.batch.MarcheBatchApplication.main(MarcheBatchApplication.java:10)
[classes/:na]
2017-08-14 16:18:43.678 ERROR 11676 --- [ main]
o.s.b.f.s.DefaultListableBeanFactory : Destroy method on bean with
name
'org.springframework.boot.autoconfigure.internalCachingMetadataReaderFactory'
threw an exception
java.lang.IllegalStateException: ApplicationEventMulticaster not
initialized - call 'refresh' before multicasting events via the
context:
org.springframework.context.annotation.AnnotationConfigApplicationContext#48a242ce:
startup date [Mon Aug 14 16:18:42 CEST 2017]; root of context
hierarchy at
org.springframework.context.support.AbstractApplicationContext.getApplicationEventMulticaster(AbstractApplicationContext.java:414)
[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.context.support.ApplicationListenerDetector.postProcessBeforeDestruction(ApplicationListenerDetector.java:97)
~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:253)
~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:578)
[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:554)
[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:961)
[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:523)
[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.beans.factory.support.FactoryBeanRegistrySupport.destroySingletons(FactoryBeanRegistrySupport.java:230)
[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:968)
[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1030)
[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1006)
[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:958)
[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] at
org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:750)
[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:314)
[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:1118)
[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:1107)
[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] at
com.edf.fr.batch.MarcheBatchApplication.main(MarcheBatchApplication.java:10)
[classes/:na]


from the given stacktrace you can see that some classes are not found, since you are using spring boot, spring boot uses meta dependencies which contains several dependencies, as mentioned in spring-boot-cookbook
Spring Boot aims to simplify the process of getting started with an application creation.
Spring Boot starters are bootstrap libraries that contain a collection of all the relevant
transitive dependencies that are needed to start a particular functionality
spring-data-jpa is not enough, there are some other dependencies you need, use spring-boot-starter-data-jpa
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>

Related

Getting Error while springBoot start Up (Caused by: java.lang.ClassNotFoundException: org.eclipse.jetty.server.handler.gzip.GzipHandler)

Error while SpringBoot start Up. I am using jetty with SpringBoot excluding Tomcat
2018-04-10 12:00:31.703 WARN 13924 --- [ main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is java.lang.NoClassDefFoundError: org/eclipse/jetty/server/handler/gzip/GzipHandler
2018-04-10 12:00:31.733 INFO 13924 --- [ main] utoConfigurationReportLoggingInitializer :
Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2018-04-10 12:00:31.817 ERROR 13924 --- [ main] o.s.boot.SpringApplication : Application startup failed
org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is java.lang.NoClassDefFoundError: org/eclipse/jetty/server/handler/gzip/GzipHandler
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:137) ~[spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:537) ~[spring-context-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at com.wipro.c4.partner.airline.sabre.app.main.ApplicationMain.main(ApplicationMain.java:37) [partner.airline.sabre.sbt-2.0.2.jar:na]
Caused by: java.lang.NoClassDefFoundError: org/eclipse/jetty/server/handler/gzip/GzipHandler
at org.springframework.boot.context.embedded.jetty.JettyEmbeddedServletContainerFactory.getEmbeddedServletContainer(JettyEmbeddedServletContainerFactory.java:170) ~[spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
Dependencies added to the POM file. There are other dependencies also which add jetty of the version 9.0.7
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>${springBoot.version}</version>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jetty</artifactId>
<version>${springBoot.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
<version>${springBoot.version}</version>
</dependency>

Cannot load driver class: com.mysql.jdbc.Driver Error on Spring Boot using Eclipse

I am new to spring boot and developing my first application using spring boot.
Following is my application.properties file
server.port=9090
spring.thymeleaf.cache=false
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/bookstoredatabase
spring.datasource.username=root
spring.datasource.password=
spring.datasource.dbcp2.test-while-idle=true
spring.datasource.dbcp2.validation-query=SELECT 1
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=update
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
and this is my pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.bookstore</groupId>
<artifactId>bookstore</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>Bookstore</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Every time I run my code I get the following error:
Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method 'dataSource' threw exception; nested exception is java.lang.IllegalStateException: Cannot load driver class: com.mysql.jdbc.Driver
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:587) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1250) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1099) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:541) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:501) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:760) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395) [spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) [spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) [spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) [spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at com.bookstore.BookstoreApplication.main(BookstoreApplication.java:10) [classes/:na]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method 'dataSource' threw exception; nested exception is java.lang.IllegalStateException: Cannot load driver class: com.mysql.jdbc.Driver
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:579) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE]
... 18 common frames omitted
Caused by: java.lang.IllegalStateException: Cannot load driver class: com.mysql.jdbc.Driver
at org.springframework.util.Assert.state(Assert.java:94) ~[spring-core-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.boot.autoconfigure.jdbc.DataSourceProperties.determineDriverClassName(DataSourceProperties.java:224) ~[spring-boot-autoconfigure-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.autoconfigure.jdbc.DataSourceProperties.initializeDataSourceBuilder(DataSourceProperties.java:176) ~[spring-boot-autoconfigure-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration.createDataSource(DataSourceConfiguration.java:43) ~[spring-boot-autoconfigure-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari.dataSource(DataSourceConfiguration.java:81) ~[spring-boot-autoconfigure-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_161]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_161]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_161]
at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_161]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE]
... 19 common frames omitted
I have tried all the solutions that are over the internetr like adding version to the msql-connector-java etc. but none of them seems to work. I will be highly oblidged if somone can guide me on the issue.

Presumably you've created this project with the Spring Initialzr so you can try running with:
./mvnw spring-boot:run
instead of eclipse - presumably this is an eclipse issue as your error matches Unable to connect mysql to spring boot project. If that does work then as suggested on that question you can run 'mvn clean install' to rebuild and should then be able to do 'Maven > Update Project' from eclipse (or set it up to sync automatically - see How do I get my Eclipse-Maven project to automatically update its classpath when I change a dependency in my pom.xml file?)

Seems like spring boot by default for first time require mysql connection.
Include mysql connector while creating your project in build.gradle I resolved using following line in dependencies
runtimeOnly 'mysql:mysql-connector-java'
application.yml
> spring:
> application:
> name: applicationevent
> version: 1.0
> datasource:
> driverClassName: com.mysql.jdbc.Driver

FileNotFoundException when loading a custom auto configuration with spring.factories

UPDATE: I have the same error if I simply add the extension project as a dependency of master.
UPDATE 2: I created a Github repo to reproduce the error: https://github.com/papagno/spring-factories-test
I am experimenting with Spring Boot and the spring.factories file. So I created two simple projects:
Master:
This is a Spring Boot application (1.4.3) with starter-web and starter-actuator as dependencies.
I also added <layout>ZIP</layout> as a configuration for spring-boot-maven-plugin.
Extension
This is a simple Spring Boot application (1.4.3) with only spring-boot-starter as a dependency.
It contains the following spring.factories file in resources/META-INF:
org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
my.package.extension.ExtensionAutoConfiguration
It also contains the my.package.ExtensionAutoConfiguration class that is annotated with only #Configuration and declares a #Bean:
package my.package.extension;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
#Configuration
public class ExtensionAutoConfiguration
{
#Bean
ExtensionService extensionService()
{
return new ExtensionService();
}
}
I compile both projects with maven, put both jars in the same folder and then run master with the following command:
java -Dloader.path=. -jar master-0.0.1-SNAPSHOT.jar
The spring.factories is recognized but when Spring tries to instantiate my auto configuration class I get the FileNotFoundException for that class.
This is the stacktrace:
org.springframework.beans.factory.BeanDefinitionStoreException: Failed to process import candidates for configuration class [my.package.master.MasterApplication]; nested exception is java.lang.IllegalStateException: java.io.FileNotFoundException: class path resource [my/package/extension/ExtensionAutoConfiguration.class] cannot be opened because it does not exist
at org.springframework.context.annotation.ConfigurationClassParser.processDeferredImportSelectors(ConfigurationClassParser.java:482) ~[spring-context-4.3.5.RELEASE.jar!/:4.3.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:184) ~[spring-context-4.3.5.RELEASE.jar!/:4.3.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:308) ~[spring-context-4.3.5.RELEASE.jar!/:4.3.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:228) ~[spring-context-4.3.5.RELEASE.jar!/:4.3.5.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:270) ~[spring-context-4.3.5.RELEASE.jar!/:4.3.5.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:93) ~[spring-context-4.3.5.RELEASE.jar!/:4.3.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:686) ~[spring-context-4.3.5.RELEASE.jar!/:4.3.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:524) ~[spring-context-4.3.5.RELEASE.jar!/:4.3.5.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.4.3.RELEASE.jar!/:1.4.3.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761) [spring-boot-1.4.3.RELEASE.jar!/:1.4.3.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371) [spring-boot-1.4.3.RELEASE.jar!/:1.4.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-1.4.3.RELEASE.jar!/:1.4.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1186) [spring-boot-1.4.3.RELEASE.jar!/:1.4.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1175) [spring-boot-1.4.3.RELEASE.jar!/:1.4.3.RELEASE]
at my.package.master.MasterApplication.main(MasterApplication.java:10) [classes!/:0.0.1-SNAPSHOT]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_101]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_101]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_101]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_101]
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [master-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [master-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:50) [master-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
at org.springframework.boot.loader.PropertiesLauncher.main(PropertiesLauncher.java:521) [master-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
Caused by: java.lang.IllegalStateException: java.io.FileNotFoundException: class path resource [my/package/extension/ExtensionAutoConfiguration.class] cannot be opened because it does not exist
at org.springframework.boot.autoconfigure.EnableAutoConfigurationImportSelector.selectImports(EnableAutoConfigurationImportSelector.java:94) ~[spring-boot-autoconfigure-1.4.3.RELEASE.jar!/:1.4.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.processDeferredImportSelectors(ConfigurationClassParser.java:474) ~[spring-context-4.3.5.RELEASE.jar!/:4.3.5.RELEASE]
... 22 common frames omitted
Caused by: java.io.FileNotFoundException: class path resource [my/package/extension/ExtensionAutoConfiguration.class] cannot be opened because it does not exist
at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:172) ~[spring-core-4.3.5.RELEASE.jar!/:4.3.5.RELEASE]
at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:50) ~[spring-core-4.3.5.RELEASE.jar!/:4.3.5.RELEASE]
at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:98) ~[spring-core-4.3.5.RELEASE.jar!/:4.3.5.RELEASE]
at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.createMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:89) ~[spring-boot-1.4.3.RELEASE.jar!/:1.4.3.RELEASE]
at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.getMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:76) ~[spring-boot-1.4.3.RELEASE.jar!/:1.4.3.RELEASE]
at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:93) ~[spring-core-4.3.5.RELEASE.jar!/:4.3.5.RELEASE]
at org.springframework.boot.autoconfigure.AutoConfigurationSorter$AutoConfigurationClasses.<init>(AutoConfigurationSorter.java:110) ~[spring-boot-autoconfigure-1.4.3.RELEASE.jar!/:1.4.3.RELEASE]
at org.springframework.boot.autoconfigure.AutoConfigurationSorter.getInPriorityOrder(AutoConfigurationSorter.java:54) ~[spring-boot-autoconfigure-1.4.3.RELEASE.jar!/:1.4.3.RELEASE]
at org.springframework.boot.autoconfigure.EnableAutoConfigurationImportSelector.sort(EnableAutoConfigurationImportSelector.java:193) ~[spring-boot-autoconfigure-1.4.3.RELEASE.jar!/:1.4.3.RELEASE]
at org.springframework.boot.autoconfigure.EnableAutoConfigurationImportSelector.selectImports(EnableAutoConfigurationImportSelector.java:89) ~[spring-boot-autoconfigure-1.4.3.RELEASE.jar!/:1.4.3.RELEASE]
... 23 common frames omitted
Am I doing something wrong? What can I do to understand what is happening? Thank you.

Your extension must not be a Spring Boot Application (no parent spring-boot-starter-parent).
When you declare spring-boot-starter-parent as parent, the jar produced is repackaged with a Sring-Boot flavor and the classes are not in the expected folders. If you open extension-0.0.1-SNAPSHOT.jar, the classes are in BOOT-INF/classes, so when the jar is used as library, no classes are found. The classes need to be at the root inside the jar.
Use the following pom.xml for Extension project:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>extension</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>extension</name>
<description>Demo project for Spring Boot</description>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.3.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.example</groupId>
<artifactId>api</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
</project>
In the code sample above, I still declared the spring-boot-starter-parent as dependencyManagement - import, so the version declarations are inherited. However, the spring-boot-maven-plugin will not be executed, the jar will not be repackaged and it will be usable as library.

Spring Boot Embeded Tomcat Failed to Start

I am building a system using Spring Boot. I am using Spring Tools Suite as the IDE, and I can build and run the program as Spring Boot App using Spring Tool Suite without any problems. However, when I build via maven via command "mvn package", and run the generated jar file under target/my-app.jar, the embeded tomcat failed to start. The error is like below:
org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:137) ~[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:535) ~[spring-context-4.3.2.RELEASE.jar!/:4.3.2.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:369) [spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:313) [spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1185) [spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1174) [spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at com.jdescript.JdeScriptApplication.main(JdeScriptApplication.java:23) [classes!/:0.0.1]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_91]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_91]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_91]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_91]
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [jde-script-0.0.1.jar:0.0.1]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [jde-script-0.0.1.jar:0.0.1]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:50) [jde-script-0.0.1.jar:0.0.1]
at org.springframework.boot.loader.PropertiesLauncher.main(PropertiesLauncher.java:525) [jde-script-0.0.1.jar:0.0.1]
Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:116) ~[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.(TomcatEmbeddedServletContainer.java:83) ~[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:530) ~[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:176) ~[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:164) ~[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:134) ~[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
... 16 common frames omitted
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardServer[-1]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:158) ~[tomcat-embed-core-8.5.4.jar!/:8.5.4]
at org.apache.catalina.startup.Tomcat.start(Tomcat.java:356) ~[tomcat-embed-core-8.5.4.jar!/:8.5.4]
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:97) ~[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
... 21 common frames omitted
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardService[Tomcat]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:158) ~[tomcat-embed-core-8.5.4.jar!/:8.5.4]
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:791) ~[tomcat-embed-core-8.5.4.jar!/:8.5.4]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:152) ~[tomcat-embed-core-8.5.4.jar!/:8.5.4]
... 23 common frames omitted
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:158) ~[tomcat-embed-core-8.5.4.jar!/:8.5.4]
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422) ~[tomcat-embed-core-8.5.4.jar!/:8.5.4]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:152) ~[tomcat-embed-core-8.5.4.jar!/:8.5.4]
... 25 common frames omitted
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:919) ~[tomcat-embed-core-8.5.4.jar!/:8.5.4]
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) ~[tomcat-embed-core-8.5.4.jar!/:8.5.4]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:152) ~[tomcat-embed-core-8.5.4.jar!/:8.5.4]
... 27 common frames omitted
My pom.xml looks like below:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.myapp</groupId>
<artifactId>my-app</artifactId>
<version>0.0.1</version>
<packaging>jar</packaging>
<name>MyApp</name>
<description>My App</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.0.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>runtime</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<layout>ZIP</layout>
<executable>true</executable>
</configuration>
</plugin>
</plugins>
</build>
</project>
Any suggestions will be greatly appreciated!

I have figured this out. My system is to interact with a third party enterprise system, and my system depends on some JAR files from third party system. So I have the "-Dloader.path" points to the directory of the third party JAR files. One of the JAR files, j2ee.jar, conflicts with tomcat. Tomcat will start if I remove j2ee.jar file from the "-Dloader.path".
Anyway, thank you again for all of your suggestions!

As Deinum suggested in the comments.
Your jar does not have the embedded tomcat dependency included in it, since you have provided the tomcat dependency scope as "runtime". Remove the scope declaration which should enable the "compile" scope by default. Your jar should then contain the dependencies required for starting the embedded tomcat container.

unable to start springboot server generated from swagger

I am new to swagger, i had to write swagger for a given POJO (just POJO) and implement API for it. So by using swagger editor I was able to write swagger processed with no errors and then did
1. Generate Server from menu and selected spring
2. Generate Client from menu and selected client
I opened the generated java API client and build successfully.
I opened the generated spring server in IntelliJ and try to run the server and I got below error ...
2016-08-18 17:16:53.188 INFO 17456 --- [ main] io.swagger.Swagger2SpringBoot : Starting Swagger2SpringBoot on AMUSLT17507 with PID 17456 (C:\Users\SGattu1\Downloads\spring-server-generated\spring-server\target\classes started by SGattu1 in C:\Users\SGattu1\Downloads\spring-server-generated\spring-server)
2016-08-18 17:16:53.216 INFO 17456 --- [ main] io.swagger.Swagger2SpringBoot : No active profile set, falling back to default profiles: default
2016-08-18 17:16:53.337 INFO 17456 --- [ main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext#6d3af739: startup date [Thu Aug 18 17:16:53 PDT 2016]; root of context hierarchy
2016-08-18 17:16:55.535 ERROR 17456 --- [ main] o.s.boot.SpringApplication : Application startup failed
java.lang.NoClassDefFoundError: javax/servlet/http/HttpServletRequest
at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_73]
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) ~[na:1.8.0_73]
at java.lang.Class.getDeclaredMethods(Class.java:1975) ~[na:1.8.0_73]
at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:612) ~[spring-core-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:524) ~[spring-core-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:510) ~[spring-core-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:241) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineConstructorsFromBeanPostProcessors(AbstractAutowireCapableBeanFactory.java:1069) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1042) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772) ~[spring-beans-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839) ~[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538) ~[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:766) ~[spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE]
at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:361) ~[spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) ~[spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE]
at io.swagger.Swagger2SpringBoot.main(Swagger2SpringBoot.java:24) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_73]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_73]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_73]
at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_73]
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144) [idea_rt.jar:na]
Caused by: java.lang.ClassNotFoundException: javax.servlet.http.HttpServletRequest
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_73]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_73]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) ~[na:1.8.0_73]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_73]
... 27 common frames omitted
Please let me know if I am missing anything over here, appreciate your help.
EDITED
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>io.swagger</groupId>
<artifactId>swagger-spring</artifactId>
<packaging>jar</packaging>
<name>swagger-spring</name>
<version>1.0.0</version>
<properties>
<java.version>1.8</java.version>
<maven.compiler.source>${java.version}</maven.compiler.source>
<maven.compiler.target>${java.version}</maven.compiler.target>
<springfox-version>2.5.0</springfox-version>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.5.RELEASE</version>
</parent>
<build>
<sourceDirectory>src/main/java</sourceDirectory>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<!--SpringFox dependencies -->
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>${springfox-version}</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>${springfox-version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-joda</artifactId>
</dependency>
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
</dependency>
</dependencies>
</project>
I try to generate spring server for the examples default, heroku, instagram, twitter they have provided and for these also getting same error.

I think the issue is the provided scope for tomcat. This would assume that you are deploying the app into an existing tomcat instance. Can you try removing that scope, refresh the project, and try running again?

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