I am trying to develop a rest API for a school project, my question is how can I find the correct version for the dialect? I don't really know a lot about the topic but i can understand that hibernate is included with the JPA dependency??
If not do I have to install it separately somehow? I can see that the compiler is auto-filling my property selection so I guess that hibernate comes with the dependecy.
I am developing the project on Spring Boot with the following depndencies:
Spring Web
Spring JPA
MySQL Driver
I tried this hibernate property but I am getting an error
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5InnoDBDialect
Caused by: org.hibernate.boot.registry.selector.spi.StrategySelectionException: Unable to resolve name [org.hibernate.dialect.MySQL5InnoDBDialect] as strategy [org.hibernate.dialect.Dialect]
at org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.selectStrategyImplementor(StrategySelectorImpl.java:155) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
at org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.resolveStrategy(StrategySelectorImpl.java:237) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
at org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.resolveStrategy(StrategySelectorImpl.java:190) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.constructDialect(DialectFactoryImpl.java:96) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:59) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:244) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:36) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:119) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:255) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
... 31 common frames omitted
Caused by: org.hibernate.boot.registry.classloading.spi.ClassLoadingException: Unable to load class [org.hibernate.dialect.MySQL5InnoDBDialect]
at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:123) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
at org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.selectStrategyImplementor(StrategySelectorImpl.java:151) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
... 39 common frames omitted
Caused by: java.lang.ClassNotFoundException: Could not load requested class : org.hibernate.dialect.MySQL5InnoDBDialect
at org.hibernate.boot.registry.classloading.internal.AggregatedClassLoader.findClass(AggregatedClassLoader.java:210) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:588) ~[na:na]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[na:na]
at java.base/java.lang.Class.forName0(Native Method) ~[na:na]
at java.base/java.lang.Class.forName(Class.java:495) ~[na:na]
at java.base/java.lang.Class.forName(Class.java:474) ~[na:na]
at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:120) ~[hibernate-core-6.1.5.Final.jar:6.1.5.Final]
... 40 common frames omitted
This my pom.xml file
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.0.0</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>SecureSoftwareDevProject</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>SecureSoftwareDevProject</name>
<description>SecureSoftwareDevProject</description>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.mysql</groupId>
<artifactId>mysql-connector-j</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</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>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
</project>
I am running MySQL server 8.0.31
Spring Boot 3 uses Hibernate 6. Hibernate 6 changed how dialects work, and you need to use org.hibernate.dialect.MySQLDialect (which configures itself based on your actual server version). The version specific dialects containing InnoDB in their name were removed in Hibernate 6, but there are still some version specific dialects (e.g. org.hibernate.dialect.MySQL8Dialect), but those were deprecated with the release of Hibernate 6.
If you're using MySQL server 8.0.31, adding this should work on your application.properties file:
spring.jpa.properties.hibernate.dialect= org.hibernate.dialect.MySQL8Dialect
You can check for documentation, which indicates;
MySQLDialect -> An SQL dialect for MySQL (prior to 5.x).
Hibernate Dialect
Related
Im using feign client to make rest calls between microservices, When i execute it using IntelliJ IDEA its working fine. But if i execute it with jar it gives me following error.
org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [org.springframework.cloud.netflix.eureka.loadbalancer.EurekaLoadBalancerClientConfiguration]; nested exception is java.lang.IllegalArgumentException: Could not find class [org.springframework.boot.autoconfigure.condition.OnBeanCondition]
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:189)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:331)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:247)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:311)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:112)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:746)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:564)
at org.springframework.cloud.context.named.NamedContextFactory.createContext(NamedContextFactory.java:155)
at org.springframework.cloud.context.named.NamedContextFactory.getContext(NamedContextFactory.java:108)
at org.springframework.cloud.context.named.NamedContextFactory.getInstances(NamedContextFactory.java:203)
at org.springframework.cloud.openfeign.loadbalancer.RetryableFeignBlockingLoadBalancerClient.lambda$execute$2(RetryableFeignBlockingLoadBalancerClient.java:118)
at org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:329)
at org.springframework.retry.support.RetryTemplate.execute(RetryTemplate.java:225)
at org.springframework.cloud.openfeign.loadbalancer.RetryableFeignBlockingLoadBalancerClient.execute(RetryableFeignBlockingLoadBalancerClient.java:113)
at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:119)
at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:89)
at feign.ReflectiveFeign$FeignInvocationHandler.invoke(ReflectiveFeign.java:100)
at com.sun.proxy.$Proxy76.fundTransfer(Unknown Source)
at com.core.banking.user.service.internetbanking.acl.service.FundTransferService.fundTransfer(FundTransferService.java:19)
at com.core.banking.user.service.internetbanking.acl.event.EventHandler.lambda$onEvent$0(EventHandler.java:38)
at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1736)
at java.base/java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1728)
at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020)
at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656)
at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594)
at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)
Caused by: java.lang.IllegalArgumentException: Could not find class [org.springframework.boot.autoconfigure.condition.OnBeanCondition]
at org.springframework.util.ClassUtils.resolveClassName(ClassUtils.java:334)
at org.springframework.context.annotation.ConditionEvaluator.getCondition(ConditionEvaluator.java:124)
at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:96)
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:226)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:207)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:175)
... 26 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.autoconfigure.condition.OnBeanCondition
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:398)
at org.springframework.util.ClassUtils.forName(ClassUtils.java:284)
at org.springframework.util.ClassUtils.resolveClassName(ClassUtils.java:324)
... 31 common frames omitted
POM File
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.6.7</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.core.banking.user.service</groupId>
<artifactId>internet-banking-acl-service</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>internet-banking-acl-service</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</java.version>
<spring-cloud.version>2021.0.2</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.24</version>
</dependency>
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
We had the same issue. After a research we found out that the issue is similar to described in the feign client bug.
The temporary fix provided by DenisKorolev resolves the issue by setting correct ClassLoader during context initialisation.
#Bean
#ConditionalOnMissingBean
public LoadBalancerClientFactory loadBalancerClientFactory(LoadBalancerClientsProperties properties) {
return new LoadBalancerClientFactory(properties) {
#Override
protected AnnotationConfigApplicationContext createContext(String name) {
// FIXME: temporary switch classloader to use the correct one when creating the context
ClassLoader originalClassLoader = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader(this.getClass().getClassLoader());
AnnotationConfigApplicationContext context = super.createContext(name);
Thread.currentThread().setContextClassLoader(originalClassLoader);
return context;
}
};
}
I`m making a web application. The back-end is in Java, and I use Spring. For the database I use CouchDb and I want to use Ektorp, but here comes the problem. It crashes when I add the Ektorp dependency. It compiles, but when I try to run, I get the errors from below.
Exception in thread "main" java.lang.IllegalArgumentException: Cannot instantiate interface org.springframework.context.ApplicationListener : org.springframework.boot.context.logging.ClasspathLoggingApplicationListener
at org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:450)
at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:429)
at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:420)
at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:270)
at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:249)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248)
at QEasyApplication.main(QEasyApplication.java:18)
Caused by: java.lang.NoClassDefFoundError: org/springframework/context/event/GenericApplicationListener
at java.base/java.lang.ClassLoader.defineClass1(Native Method)
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1016)
at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174)
at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:802)
at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:700)
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:623)
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:398)
at org.springframework.util.ClassUtils.forName(ClassUtils.java:275)
at org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:442)
... 7 more
Caused by: java.lang.ClassNotFoundException: org.springframework.context.event.GenericApplicationListener
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:583)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 20 more
Process finished with exit code 1
I tried changing to different versions of Ektorp or spring boot but nothing worked. Down below is my Maven pom file. What could be the problem?
<?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>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>2.1.3.RELEASE</version>
<type>pom</type>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.1.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
<version>2.1.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
<version>2.1.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.ektorp</groupId>
<artifactId>org.ektorp.spring</artifactId>
<version>1.4.4</version>
</dependency>
</dependencies>
</project>
Well it seems that org.springframework.context.event.GenericApplicationListener is not on your classpath. It resides in spring-context.
You state, in other words your pom.xml states, that someone should provide spring-boot-dependencies for you? I think you confused the provided and the import Maven scopes:
provided – "you expect the JDK or a container to provide the dependency at runtime"
import – "It indicates the dependency to be replaced with the effective list of dependencies in the specified POM's section."
So two possibilities:
switch the runtime scope of spring-boot-dependencies to import
even better, let Spring Boot manage as many dependencies as possible for you and put the following parent pom in place, to leverage the full potential of Spring Boot:
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.3.RELEASE</version>
</parent>
So I have been following this Microservices with Spring Boot guide and everything seems to work as expected in the IDE(intelliJ IDEA), the Eureka Server starts and functions as expected.
However, a problem occured after I exported my Eureka server as a fat jar.
To package the Eureka server into a fat jar I used mvn clean package in the terminal which has always worked for me.
After that when I tried to run the jar using java -jar myjar.jar I got the following exception
org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:155) ~[spring-boot-2.0.0.RELEASE.jar!/:2.0.0.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) ~[spring-context-5.0.4.RELEASE.jar!/:5.0.4.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.0.RELEASE.jar!/:2.0.0.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752) [spring-boot-2.0.0.RELEASE.jar!/:2.0.0.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:388) [spring-boot-2.0.0.RELEASE.jar!/:2.0.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) [spring-boot-2.0.0.RELEASE.jar!/:2.0.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246) [spring-boot-2.0.0.RELEASE.jar!/:2.0.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1234) [spring-boot-2.0.0.RELEASE.jar!/:2.0.0.RELEASE]
at org.tushinov.ServiceRegistryStarter.main(ServiceRegistryStarter.java:11) [classes!/:1.0]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Unknown Source) ~[na:na]
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [service-registry-1.0.jar:1.0]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [service-registry-1.0.jar:1.0]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:50) [service-registry-1.0.jar:1.0]
at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51) [service-registry-1.0.jar:1.0]
Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:125) ~[spring-boot-2.0.0.RELEASE.jar!/:2.0.0.RELEASE]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:86) ~[spring-boot-2.0.0.RELEASE.jar!/:2.0.0.RELEASE]
at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:417) ~[spring-boot-2.0.0.RELEASE.jar!/:2.0.0.RELEASE]
at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:176) ~[spring-boot-2.0.0.RELEASE.jar!/:2.0.0.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:179) ~[spring-boot-2.0.0.RELEASE.jar!/:2.0.0.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:152) ~[spring-boot-2.0.0.RELEASE.jar!/:2.0.0.RELEASE]
... 16 common frames omitted
Caused by: java.lang.IllegalStateException: StandardEngine[Tomcat].StandardHost[localhost].TomcatEmbeddedContext[] failed to start
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.rethrowDeferredStartupExceptions(TomcatWebServer.java:171) ~[spring-boot-2.0.0.RELEASE.jar!/:2.0.0.RELEASE]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:110) ~[spring-boot-2.0.0.RELEASE.jar!/:2.0.0.RELEASE]
... 21 common frames omitted
After looking around in Stackoverflow I came across this question but it did not manage to help me with the problem. So I decided to ask a question myself.
I have used mvn clean package for making fat jars for quite some time and never had an issue. How come this time it fails? Im guessing it has something to do with the netflix eureka server. Maybe a missing configuration or something similar.
So here is everything that I currently have:
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>org.tushinov</groupId>
<artifactId>service-registry</artifactId>
<version>1.0</version>
<packaging>jar</packaging>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.0.RELEASE</version>
<relativePath/>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-netflix-eureka-server -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
<version>2.0.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
application.properties
spring.application.name=eureka-server
server.port=8761
eureka.client.register-with-eureka=false
eureka.client.fetch-registry=false
and the code
package org.tushinov;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
#SpringBootApplication
#EnableEurekaServer
public class ServiceRegistryStarter {
public static void main(String[] args) {
SpringApplication.run(ServiceRegistryStarter.class, args);
}
}
If I have missed anything please ask away in the comments for clarification.
Any help and/or suggestion are welcome and greatly appreciated!
After some time I found the answer to this problem. It was not a configuration or anything like it. It was a JDK mistmatch in intelliJ and maven. In intelliJ I was using JDK 1.8 to compile and run my application.
The thing I did not realise was that mvn uses the JAVA_HOME parameter to find which JDK it is supposed to use as opposed to intelliJ where you can specify your jdk. The JAVA_HOME parameter in my case was pointing to JDK 1.9, which, apperantly, might need more dependencies and/or configuration in order to run the Netflix Eureka server.
These resources helped me with solving the problem.
Here is pom which works for me
<?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.microservices</groupId>
<artifactId>naming-server</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>naming-server</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/>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<spring-cloud.version>Finchley.M9</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
</project>
In eclipse I create a new spring boot starter project. The Spring Boot Version is 1.5.9.RELEASE and the dependency I include is the spring-boot-starter-web (this is all done by the Spring Project wizard in eclipse, so likely no error there). When I run it as Spring Boot app, I get the error
Exception in thread "main" java.lang.IllegalArgumentException: Cannot instantiate interface org.springframework.context.ApplicationContextInitializer : org.springframework.boot.context.ConfigurationWarningsApplicationContextInitializer
at org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:413)
at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:392)
at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:383)
at org.springframework.boot.SpringApplication.initialize(SpringApplication.java:249)
at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:225)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107)
at spring.demo.rest.DemoApplication.main(DemoApplication.java:10)
Caused by: java.lang.NoClassDefFoundError: org/springframework/beans/BeanUtils
at org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:409)
... 7 more
Caused by: java.lang.ClassNotFoundException: org.springframework.beans.BeanUtils
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 8 more
The class BeanUtils is in the spring-beans library which is clearly imported
This is my pom
<?xml version="1.0" encoding="UTF-8"?>
http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
<groupId>spring.demo.rest</groupId>
<artifactId>restdemo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.9.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-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>
Note: I am behind a corporate proxy and the nexus we have mirrors the maven central repo. I have setup the proxy in settings.xml
EDIT
What I noticed was that the spring-beans4.3.13.RELEASE.jar is installed to org/springframeword/spring-beans/4.3.13.RELEASE but the app looks for BeanUtils in org/springframework/beans/BeanUtils. There must be some version incompatability right?
I am stuck with running JUnit tests. If I start my application with SpringApplication.class or with spring-boot:run - everything is ok. But when I am runnin JUnit tests - I am facing the error:
java.lang.IllegalStateException: Failed to load ApplicationContext
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.tomcat.jdbc.pool.DataSource]: Factory method 'dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588)
... 69 more
Caused by: org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).
at org.springframework.boot.autoconfigure.jdbc.DataSourceProperties.determineDriverClassName(DataSourceProperties.java:229)
at org.springframework.boot.autoconfigure.jdbc.DataSourceProperties.initializeDataSourceBuilder(DataSourceProperties.java:174)
at org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration.createDataSource(DataSourceConfiguration.java:42)
at org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Tomcat.dataSource(DataSourceConfiguration.java:53)
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.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162)
... 70 more
I am sure that the error was not appearing before, but now I am stuck.
application.properties:
# Database
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/fileServer
spring.datasource.username=root
spring.datasource.password=
# JPA
spring.jpa.show_sql=true
spring.jpa.hibernate.ddl-auto=update
spring.jpa.database-platform=org.hibernate.dialect.MySQL5Dialect
pom.xml:
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.1.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-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</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-web-services</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-tomcat</artifactId>
<scope>compile</scope>
</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>
<!--<scope>runtime</scope>-->
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
Test.class:
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration(classes = {FileServerApplication.class})
public class FileServiceTest {
#Autowired
private FileService fileService;
#Autowired
private PathAppender pathAppender;
#Test
public void testCreateAndDeleteFile() {
String filename = "test.txt";
fileService.create(filename, FileType.FILE);
File file = new File(pathAppender.getUserDirectory() + filename);
assertTrue(file.exists());
fileService.delete(filename);
assertFalse(file.exists());
}
I've tried to play with mysql-connector scope but that does not take any effect.