[FIXED] Could not bind properties

Issue

I've updated Spring Boot from version 1.5.6 to 2.0.0 and a lot of problems have started. One is the problem given in the subject. I have a class with properties

@Data
@ConfigurationProperties("eclipseLink")
public class EclipseLinkProperties { ... }

which I use in configuration

@Configuration
@EnableConfigurationProperties(EclipseLinkProperties.class)
public class WebDatasourceConfig { ... }

during compilation, he throws me away

2018-03-18 18:44:58.560  INFO 3528 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.boot.context.properties.ConversionServiceDeducer$Factory' of type [org.springframework.boot.context.properties.ConversionServiceDeducer$Factory] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)

2018-03-18 18:44:58.575  WARN 3528 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'webDatasourceConfig': Unsatisfied dependency expressed through field 'eclipseLinkProperties'; nested exception is org.springframework.boot.context.properties.ConfigurationPropertiesBindException: Error creating bean with name 'eclipseLink-com.web.web.config.properties.EclipseLinkProperties': Could not bind properties to 'EclipseLinkProperties' : prefix=eclipseLink, ignoreInvalidFields=false, ignoreUnknownFields=true; nested exception is org.springframework.boot.context.properties.source.InvalidConfigurationPropertyNameException: Configuration property name 'eclipseLink' is not valid

It means

Configuration property name 'eclipseLink' is not valid

Before the Spring Boot update everything worked.

Solution

eclipseLink isn't a valid prefix. As described in the documentation kebab-case should be used rather than camelCase. So your prefix should be eclipse-link rather than eclipseLink.

Answered By - Andy Wilkinson
Answer Checked By - David Marino (JavaFixing Volunteer)