springboot Actuator triggers an early post processor initialization

springboot 2.2.4-RELEASE * pom.xml

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!-- database start -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <!-- database end -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>

    </dependencies>

• application.yml

spring:
  datasource:
    url: jdbc:mysql://127.0.0.1:3306/auth8?useUnicode=true&characterEncoding=utf-8&autoReconnect=true&useSSL=false&serverTimezone=Asia/Shanghai
    username: root
    password: 123456
````
* bootstrap.java

@SpringBootApplication public class SessionBootstrap {

public static void main(String[] args) {
    SpringApplication.run(SessionBootstrap.class, args);
}

}

* But why ???

2020-02-12 00:54:42.986 INFO 95047 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 2020-02-12 00:54:43.359 INFO 95047 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)

**Comment From: snicoll**

@cubita-io thanks for the report. Can you please turn this text into an actual project (zip or github repo url) we can use to reproduce the issue?

**Comment From: cubita-io**

> @cubita-io thanks for the report. Can you please turn this text into an actual project (zip or github repo url) we can use to reproduce the issue?


https://github.com/cubita-io/springboot-issue.git

**Comment From: cubita-io**

Also use JPA 

org.springframework.boot spring-boot-starter-data-jpa com.h2database h2 runtime ```

Comment From: cubita-io

Also use JPA

<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <dependency> <groupId>com.h2database</groupId> <artifactId>h2</artifactId> <scope>runtime</scope> </dependency>

https://github.com/cubita-io/springboot-issue-jpa.git

Comment From: snicoll

Thanks for the sample. The actuator alone is enough to reproduce the problem as indicated in your sample (but not in the original description). The same setup does work in 2.1.x.

Comment From: mbhave

Wonder if this is related to #19625.

Comment From: snicoll

Good catch Madhura, this is an early init caused by MeterRegistryPostProcessor indeed.

Duplicate of #19625