JAVA-22210 Upgrade dependencies versions for spring-apache-camel module (eugenp#14359)

Author: timis1

messaging-modules/spring-apache-camel/README.md

@@ -14,7 +14,7 @@ This module contains articles about Spring with Apache Camel
 ### Framework Versions:
 
 - Spring 5.3.25
-- Apache Camel 3.14.7
+- Apache Camel 3.21.0
 
 ### Build and Run Application
 

messaging-modules/spring-apache-camel/pom.xml

@@ -19,12 +19,12 @@
         <dependency>
             <groupId>org.apache.camel</groupId>
             <artifactId>camel-core</artifactId>
-            <version>${env.camel.version}</version>
+            <version>${camel.version}</version>
         </dependency>
         <dependency>
             <groupId>org.apache.camel</groupId>
             <artifactId>camel-spring</artifactId>
-            <version>${env.camel.version}</version>
+            <version>${camel.version}</version>
             <exclusions>
                 <exclusion>
                     <artifactId>commons-logging</artifactId>
@@ -35,17 +35,12 @@
         <dependency>
             <groupId>org.apache.camel</groupId>
             <artifactId>camel-stream</artifactId>
-            <version>${env.camel.version}</version>
+            <version>${camel.version}</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-context</artifactId>
-            <version>${env.spring.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.camel</groupId>
-            <artifactId>camel-spring-javaconfig</artifactId>
-            <version>${env.camel.version}</version>
+            <version>${spring.version}</version>
         </dependency>
         <dependency>
             <groupId>org.apache.camel.springboot</groupId>
@@ -77,12 +72,16 @@
             <version>${camel.version}</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-spring-xml</artifactId>
+            <version>${camel.version}</version>
+        </dependency>
     </dependencies>
 
     <properties>
-        <env.camel.version>3.14.7</env.camel.version>
-        <env.spring.version>5.3.25</env.spring.version>
-        <camel.version>3.15.0</camel.version>
+        <spring.version>5.3.25</spring.version>
+        <camel.version>3.21.0</camel.version>
     </properties>
 
     <profiles>

messaging-modules/spring-apache-camel/src/main/java/com/baeldung/camel/apache/file/cfg/ContentBasedFileRouterConfig.java

@@ -1,26 +1,24 @@
 package com.baeldung.camel.apache.file.cfg;
 
-import java.util.Arrays;
+import java.util.Collections;
 import java.util.List;
 
 import org.apache.camel.builder.RouteBuilder;
-import org.apache.camel.spring.javaconfig.CamelConfiguration;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
 import com.baeldung.camel.apache.file.ContentBasedFileRouter;
 
 @Configuration
-public class ContentBasedFileRouterConfig extends CamelConfiguration {
+public class ContentBasedFileRouterConfig {
 
 	@Bean
 	ContentBasedFileRouter getContentBasedFileRouter() {
 		return new ContentBasedFileRouter();
 	}
 
-	@Override
 	public List<RouteBuilder> routes() {
-		return Arrays.asList(getContentBasedFileRouter());
+		return Collections.singletonList(getContentBasedFileRouter());
 	}
 
 }