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I am trying to implement a server using spring boot and jpa.

I wanted to add a method to update values in the database (MySQL) and therefore, I added the method by referring this answer. Since then the program does not work and throws this exception:

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'requestMappingHandlerAdapter' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Unsatisfied dependency expressed through method 'requestMappingHandlerAdapter' parameter 2; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mvcValidator' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.validation.Validator]: Factory method 'mvcValidator' threw exception; nested exception is java.lang.NoClassDefFoundError: javax/validation/ParameterNameProvider at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:797) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:538) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1336) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1176) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:556) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:897) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879) ~[spring-context-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551) ~[spring-context-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE] at com.app.cashier.CashierApplication.main(CashierApplication.java:12) ~[classes/:na] Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mvcValidator' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.validation.Validator]: Factory method 'mvcValidator' threw exception; nested exception is java.lang.NoClassDefFoundError: javax/validation/ParameterNameProvider at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:655) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:635) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1336) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1176) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:556) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1307) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1227) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:884) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:788) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] ... 20 common frames omitted Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.validation.Validator]: Factory method 'mvcValidator' threw exception; nested exception is java.lang.NoClassDefFoundError: javax/validation/ParameterNameProvider at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:650) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] ... 34 common frames omitted Caused by: java.lang.NoClassDefFoundError: javax/validation/ParameterNameProvider at org.springframework.boot.autoconfigure.validation.ValidatorAdapter.create(ValidatorAdapter.java:134) ~[spring-boot-autoconfigure-2.3.2.RELEASE.jar:2.3.2.RELEASE] at org.springframework.boot.autoconfigure.validation.ValidatorAdapter.getExistingOrCreate(ValidatorAdapter.java:117) ~[spring-boot-autoconfigure-2.3.2.RELEASE.jar:2.3.2.RELEASE] at org.springframework.boot.autoconfigure.validation.ValidatorAdapter.get(ValidatorAdapter.java:109) ~[spring-boot-autoconfigure-2.3.2.RELEASE.jar:2.3.2.RELEASE] at org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$EnableWebMvcConfiguration.mvcValidator(WebMvcAutoConfiguration.java:458) ~[spring-boot-autoconfigure-2.3.2.RELEASE.jar:2.3.2.RELEASE] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na] at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] ... 35 common frames omitted Caused by: java.lang.ClassNotFoundException: javax.validation.ParameterNameProvider at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:602) ~[na:na] at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178) ~[na:na] at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[na:na] ... 44 common frames omitted

Model class :

package com.app.cashier.model; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.Id; import javax.validation.constraints.Min; import java.util.Date; @Entity public class Items { @Id @GeneratedValue @Column(name = "itemId") private int itemId; @Column(name = "itemName") private String itemName; @Column(name = "expirationDate") private Date expirationDate; @Column(name = "price") private float price; @Column(name = "batch") private Date batch; @Min(value = 0, message = "Available amount is empty") @Column(name = "availableAmount") private int availableAmount; @Column(name = "flavour") private String flavour; @Column(name = "liter") private float liter; @Column(name = "type") private String type; public Items() { } public int getItemId() { return itemId; } public void setItemId(int itemId) { this.itemId = itemId; } public String getItemName() { return itemName; } public void setItemName(String itemName) { this.itemName = itemName; } public Date getExpirationDate() { return expirationDate; } public void setExpirationDate(Date expirationDate) { this.expirationDate = expirationDate; } public float getPrice() { return price; } public void setPrice(float price) { this.price = price; } public Date getBatch() { return batch; } public void setBatch(Date batch) { this.batch = batch; } public int getAvailableAmount() { return availableAmount; } public void setAvailableAmount(int availableAmount) { this.availableAmount = availableAmount; } public String getFlavour() { return flavour; } public void setFlavour(String flavour) { this.flavour = flavour; } public float getLiter() { return liter; } public void setLiter(float liter) { this.liter = liter; } public String getType() { return type; } public void setType(String type) { this.type = type; } }

Repository :

package com.app.cashier.repository; import com.app.cashier.model.Items; import org.springframework.data.jpa.repository.JpaRepository; public interface ItemRepository extends JpaRepository<Items, Integer> { }

Resource :

package com.app.cashier.resource; import com.app.cashier.model.Items; import com.app.cashier.repository.ItemRepository; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.*; import java.util.List; @RestController @RequestMapping(value = "/rest/items") public class ItemsResource { @Autowired ItemRepository itemRepository; @GetMapping(value = "/all") public List<Items> getAll(){ return itemRepository.findAll(); } @PostMapping(value = "/load") public List<Items> persist(@RequestBody final Items item){ itemRepository.save(item); return itemRepository.findAll(); } }

Even though I removed the update method, it continues throwing this exception. How can I fix this?

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3 Answers 3

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It seems that validation-api is not in your dpendencies. Add this to your maven dependency:

<!-- https://mvnrepository.com/artifact/javax.validation/validation-api --> <dependency> <groupId>javax.validation</groupId> <artifactId>validation-api</artifactId> <version>2.0.0.Final</version> </dependency>

If you are using gradle add this one:

// https://mvnrepository.com/artifact/javax.validation/validation-api compile group: 'javax.validation', name: 'validation-api', version: '2.0.0.Final'
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2 Comments

I am using these 2 dependencies ``` <dependency> <groupId>javax.validation</groupId> <artifactId>validation-api</artifactId> <version>1.0.0.GA</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-validator</artifactId> <version>4.0.2.GA</version> </dependency> ```
I tried using the dependency provided by you instead of mine and it worked. Thank you so much!
3

If you are using SpringBoot 2.3 or later you need to specify a new Validation Starter in your POM.

<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-validation</artifactId> </dependency>

https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-2.3-Release-Notes#validation-starter-no-longer-included-in-web-starters

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I faced this issue recently on updating to SpringBoot 2.7.4. For me it was resolved on adding the latest springdoc-openapi-ui dependency.

<dependency> <groupId>org.springdoc</groupId> <artifactId>springdoc-openapi-ui</artifactId> <version>1.6.3</version> </dependency>
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