Btukfyl

When I run my spring boot application , it exits immediately (with exit code 0) with this:

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 :: Spring Boot ::        (v2.1.0.RELEASE)



2018-11-27 14:08:31.219  INFO 94920 --- [  restartedMain] c.springbootsecurity.jwt.JwtApplication  : Starting JwtApplication on 1000810002637M.local with PID 94920 (/Users/723305/Documents/spring/springbootSecure/target/classes started by 723305 in /Users/723305/Documents/spring/springbootSecure)

2018-11-27 14:08:31.222  INFO 94920 --- [  restartedMain] c.springbootsecurity.jwt.JwtApplication  : No active profile set, falling back to default profiles: default

2018-11-27 14:08:31.252  INFO 94920 --- [  restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable

2018-11-27 14:08:31.722  INFO 94920 --- [  restartedMain] o.s.b.d.a.OptionalLiveReloadServer       : LiveReload server is running on port 35729

2018-11-27 14:08:31.743  INFO 94920 --- [  restartedMain] c.springbootsecurity.jwt.JwtApplication  : Started JwtApplication in 0.752 seconds (JVM running for 1.294)



Process finished with exit code 0

my pom.xml file:

<?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.springbootSecurity</groupId>

    <artifactId>jwt</artifactId>

    <version>0.0.1-SNAPSHOT</version>

    <packaging>jar</packaging>



    <name>jwt</name>

    <description>Demo project for Spring Boot</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-security</artifactId>

        </dependency>



        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-devtools</artifactId>

            <scope>runtime</scope>

        </dependency>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-test</artifactId>

            <scope>test</scope>

        </dependency>

        <dependency>

            <groupId>org.springframework.security</groupId>

            <artifactId>spring-security-test</artifactId>

            <scope>test</scope>

        </dependency>

    </dependencies>



    <build>

        <plugins>

            <plugin>

                <groupId>org.springframework.boot</groupId>

                <artifactId>spring-boot-maven-plugin</artifactId>

            </plugin>

            <plugin>

                <groupId>org.springframework.boot</groupId>

                <artifactId>spring-boot-maven-plugin</artifactId>

            </plugin>



        </plugins>

    </build>        

</project>

I don't see any issues with this.

Process finished with exit code 0

This says process ended happily.

Given your application is not having spring-boot-starter-web dependency then it won't be starting any server and not waiting for any request.

It is very much similar to a main method which does not have anything to execute or finishes as soon as main code completes.

Because of you spring boot in pom.xml you did not declare as starter web project it will
shut down immediately, it is an expected behavior, now to run as web container you need to add below code in your pom.xml.

<dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-web</artifactId>

</dependency>