org/springframework/boot/bind/RelaxedPropertyResolver not found - spring-boot

Question

I am trying to connect Apache Artemis with Apache Camel in Spring Boot project.
I am getting problem when I am upgrading my spring boot version from 1.5.9.RELEASE to 2.2.2.RELEASE. Below is my POM and Java files which I am using:
<?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.learncamel</groupId>
<artifactId>activemq-learncamel-spring-boot</artifactId>
<version>1.0.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>learncamel-spring-boot</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>
<camel-version>2.20.1</camel-version>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-spring-boot-starter</artifactId>
<version>2.20.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!--jdbc-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
<version>1.5.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-jdbc</artifactId>
<version>${camel-version}</version>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.4.1212</version>
</dependency>
<!-- Lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.20</version>
<scope>provided</scope>
</dependency>
<!-- EMail-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
<version>1.4.3.RELEASE</version>
</dependency>
<!--activeMQ-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-activemq</artifactId>
<exclusions>
<exclusion>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-broker</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-camel</artifactId>
<version>5.15.3</version>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-jms</artifactId>
<version>2.20.1</version>
</dependency>
<!--health Check-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-http</artifactId>
<version>2.20.1</version>
</dependency>
<!--Test Dependencies-->
<!--Camel Spring Test-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-test-spring</artifactId>
<version>2.20.1</version>
<scope>test</scope>
</dependency>
<!--Clean Up directory-->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-io</artifactId>
<version>1.3.2</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
When I am upgrading parent version to 2.2.2.RELEASE then it start giving below error:-
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
21-06-2020 15:39:11.614 [main] ERROR o.s.boot.SpringApplication.reportFailure - Application run failed
org.springframework.beans.factory.BeanDefinitionStoreException: Failed to process import candidates for configuration class [com.learncamel.ActiveMQCamelApplication]; nested exception is java.lang.IllegalStateException: Could not evaluate condition on org.apache.camel.spring.boot.security.CamelSSLAutoConfiguration due to org/springframework/boot/bind/RelaxedPropertyResolver not found. Make sure your own configuration does not rely on that class. This can also happen if you are #ComponentScanning a springframework package (e.g. if you put a #ComponentScan in the default package by mistake)
at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:597)
at org.springframework.context.annotation.ConfigurationClassParser.access$900(ConfigurationClassParser.java:109)
at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorGroupingHandler.lambda$processGroupImports$1(ConfigurationClassParser.java:805)
at java.util.ArrayList.forEach(ArrayList.java:1257)
at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorGroupingHandler.processGroupImports(ConfigurationClassParser.java:801)
at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorHandler.process(ConfigurationClassParser.java:771)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:188)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:325)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:242)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:706)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215)
at com.learncamel.ActiveMQCamelApplication.main(ActiveMQCamelApplication.java:10)
Caused by: java.lang.IllegalStateException: Could not evaluate condition on org.apache.camel.spring.boot.security.CamelSSLAutoConfiguration due to org/springframework/boot/bind/RelaxedPropertyResolver not found. Make sure your own configuration does not rely on that class. This can also happen if you are #ComponentScanning a springframework package (e.g. if you put a #ComponentScan in the default package by mistake)
at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:54)
at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:108)
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:221)
at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:587)
... 19 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/bind/RelaxedPropertyResolver
at org.apache.camel.spring.boot.security.CamelSSLAutoConfiguration$Condition.getMatchOutcome(CamelSSLAutoConfiguration.java:51)
at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:47)
... 22 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.bind.RelaxedPropertyResolver
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 24 common frames omitted
Process finished with exit code 1
I am using below Java files:
package com.learncamel.config;
import org.apache.activemq.camel.component.ActiveMQComponent;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import javax.jms.ConnectionFactory;
#Configuration
public class ActiveMQConfig {
#Bean(name="activemq")
public ActiveMQComponent createComponent(ConnectionFactory factory){
ActiveMQComponent activeMQComponent = new ActiveMQComponent();
activeMQComponent.setConnectionFactory(factory);
return activeMQComponent;
}
}
Another Java file:
package com.learncamel.routes;
import org.apache.camel.builder.RouteBuilder;
import org.springframework.stereotype.Component;
#Component
public class ActiveMQRoute extends RouteBuilder{
#Override
public void configure() throws Exception {
from("{{fromRoute}}")
.log("Read Message from activemQ ${body}")
.to("{{toRoute}}");
}
}

Answer 1

Such errors could arise because of mixed Spring versions.
Do a Maven dependency tree and check for mixed Spring versions (the one of the parent POM and other versions from transitive dependencies.
If you got mixed Spring versions in your dependency tree, fix them with dependency management or similar Maven features.

Answer 2

I had spring-boot-starter-parent version in pom as 2.3.10.RELEASE but added spring-boot dependency of 2.1.8.RELEASE. I had to remove version from there to make the error go away
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot</artifactId>
<!--<version>2.1.8.RELEASE</version>-->
</dependency>