Syntax error, insert "EnumBody" to complete ClassBodyDeclarations when using #value - spring-boot

Question

I wrote this class to retrive a property from application.propreties file.
I get the error above on the #value statment. I Tried to set it different ways but nothing helped.
also tried setting it as #componnet.
package com.example.demo;
import org.springframework.context.annotation.Configuration;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import javax.management.loading.PrivateMLet;
import org.springframework.beans.factory.annotation.*;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.*;
#Configuration
public class ApplicationConfiguration {
#Value("${spring.datasource.url");
private String JdbcUrl;
#Value("${spring.datasource.user:}");
private String JdbcUser;
#Value("${spring.datasource.password:}");
private String JdbcPassword;
public String getJdbcUrl() {
return JdbcUrl;
}
public String getJdbcUser() {
return JdbcUser;
}
public String getJdbcPassword() {
return JdbcPassword;
}
}
the Erorr I get is:
2020-12-05 11:11:30.077 INFO 660 --- [ main] c.e.demo.AccessPostgresApplication : Starting AccessPostgresApplication on user-PC with PID 660 (C:\Users\user\Documents\mytrips\target\classes started by user in C:\Users\user\Documents\mytrips)
2020-12-05 11:11:30.080 INFO 660 --- [ main] c.e.demo.AccessPostgresApplication : The following profiles are active: dev
2020-12-05 11:11:31.838 INFO 660 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-12-05 11:11:31.838 INFO 660 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.38]
2020-12-05 11:11:32.008 INFO 660 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded
WebApplicationContext
2020-12-05 11:11:32.124 INFO 660 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2020-12-05 11:11:32.551 INFO 660 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2020-12-05 11:11:33.153 INFO 660 --- [ task-1] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default]
2020-12-05 11:11:33.223 INFO 660 --- [ task-1] org.hibernate.Version : HHH000412: Hibernate ORM core version 5.4.21.Final
2020-12-05 11:11:33.418 INFO 660 --- [ task-1] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.1.0.Final}
2020-12-05 11:11:33.578 INFO 660 --- [ task-1] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.PostgreSQLDialect
2020-12-05 11:11:34.580 INFO 660 --- [ task-1] o.h.e.t.j.p.i.JtaPlatformInitiator : HHH000490: Using JtaPlatform
implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
Exception in thread "task-2" java.lang.IllegalStateException: EntityManagerFactory is closed
at org.hibernate.internal.SessionFactoryImpl.validateNotClosed(SessionFactoryImpl.java:509)
2020-12-05 11:11:34.606 INFO 660 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...
at org.hibernate.internal.SessionFactoryImpl.getProperties(SessionFactoryImpl.java:503)
at org.springframework.boot.autoconfigure.orm.jpa.DataSourceInitializedPublisher.findDataSource(DataSourceInitializedPublisher.java:105)
at org.springframework.boot.autoconfigure.orm.jpa.DataSourceInitializedPublisher.publishEventIfRequired(DataSourceInitializedPublisher.java:97)
at org.springframework.boot.autoconfigure.orm.jpa.DataSourceInitializedPublisher.access$100(DataSourceInitializedPublisher.java:50)
at org.springframework.boot.autoconfigure.orm.jpa.DataSourceInitializedPublisher$DataSourceSchemaCreatedPublisher.lambda$postProcessEntityManagerFactory$0(DataSourceInitializedPublisher.java:200)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
at java.base/java.lang.Thread.run(Thread.java:832)
2020-12-05 11:11:34.614 INFO 660 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.
2020-12-05 11:11:34.616 INFO 660 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2020-12-05 11:11:34.641 ERROR 660 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'applicationConfiguration' defined in file [C:\Users\user\Documents\mytrips\target\classes\com\example\demo\ApplicationConfiguration.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.example.demo.ApplicationConfiguration$$EnhancerBySpringCGLIB$$5e10e388]: Constructor threw exception; nested exception is java.lang.Error: Unresolved compilation problems:
Syntax error, insert "enum Identifier" to complete EnumHeaderName
Syntax error, insert "EnumBody" to complete ClassBodyDeclarations
Syntax error, insert "enum Identifier" to complete EnumHeaderName
Syntax error, insert "EnumBody" to complete EnumDeclaration
Syntax error, insert "enum Identifier" to complete EnumHeaderName
Syntax error, insert "EnumBody" to complete EnumDeclaration
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1318) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1213) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:556) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:897) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879) ~[spring-context-5.2.9.RELEASE.jar:5.2.9.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551) ~[spring-context-5.2.9.RELEASE.jar:5.2.9.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
at com.example.demo.AccessPostgresApplication.main(AccessPostgresApplication.java:11) ~[classes/:na]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate
jsdkfn kljsfn lkflksd ;lskjf ;lskjf ;lkfj s;lkfj ;lskjdf ;lkj ;lskdjf nvm,fnbmdnb ,mfnb ,mdsn

Answer 1

You can not use final with #Value in spring. If you use final with a field in a class then you must initialize the field and after initialization the value can not be changed.
But #Value workes differently, spring will populate the value at runtime, so if there is a final identifier, spring will not be able to populate the value with the value of the property.
In your case, you are using final but you are not initializing the value, that's why you are getting an exception. If you can either remove the final or init the value with something to remove the exception. If you remove the final spring will be able to populate the value. If you init the value with something, then the value will not be changed in you application.

Answer 2

Found the issue. there was a ';' at the end of the #value statment