Using #ControllerAdvice as a dependency for another project - spring

Question

I make a common project for listening Exceptions and use #ControllerAdvice with #ExceptionHandler
#ControllerAdvice(annotations = RestController.class)
public class RestResponseEntityExceptionHandler extends ResponseEntityExceptionHandler {
#ExceptionHandler({Exception.class})
#ResponseStatus(value = HttpStatus.NOT_FOUND)
#ResponseBody
public ResponseEntity<ErrorResponse> notFound(Exception ex) {
return new ResponseEntity<>(
new ErrorResponse(ex.getMessage(), 404, "My Custom Message"), HttpStatus.NOT_FOUND);
}
}
without any #SpringBootApplication and main method to adding as dependency to my another project. my pom.xml
<?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.test</groupId>
<artifactId>spring-commons-rest</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>spring-commons-rest</name>
<description>for Listening Exceptions</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.0.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>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
</project>
after adding its dependency and #ComponentScan to another project, but its not working as Exception handling for response custom Error. I appreciated any help.

Answer 1

I found that was not about using #ComponentScan and with using #Import it will work so fine. but if anyone has any better solution or some guiding line I will appreciate that.

Answer 2

I've solved it by adding
#Order(Ordered.HIGHEST_PRECEDENCE)
to the ControllerAdvice class that you are importing.
In my case, there was another ControllerAdvice class in the downstream project that was taking priority over the one I was importing.