Spring boot starter parent 2.0.0 not found dependency

Question

I decided to update my spring-boot-starter-parent to version 2.0.0.M1 in order to use it with Spring Core 5.0.0.RC1.

But, i am having issues downloading the dependency from the Spring milestone repository.

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.testapplication</groupId> <artifactId>application</artifactId> <version>1.0-SNAPSHOT</version> <packaging>jar</packaging>  <parent>     <groupId>org.springframework.boot</groupId>     <artifactId>spring-boot-starter-parent</artifactId>     <version>2.0.0.M1</version> </parent>  <repositories>     <repository>         <id>repository.spring.milestone</id>         <name>Spring Milestone Repository</name>         <url>http://repo.spring.io/milestone</url>         <snapshots>             <enabled>false</enabled>         </snapshots>     </repository> </repositories>  <dependencyManagement>     <dependencies>         <dependency>             <groupId>com.test.testplugin</groupId>             <artifactId>plugin</artifactId>             <version>1.0-SNAPSHOT</version>         </dependency>         <dependency>             <groupId>com.test.testutils</groupId>             <artifactId>utils</artifactId>             <version>1.0-SNAPSHOT</version>         </dependency>         <dependency>             <groupId>org.springframework.boot</groupId>             <artifactId>spring-boot-starter-web</artifactId>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-context</artifactId>         </dependency>         <dependency>             <groupId>junit</groupId>             <artifactId>junit</artifactId>         </dependency>         <dependency>             <groupId>org.mockito</groupId>             <artifactId>mockito-core</artifactId>         </dependency>     </dependencies> </dependencyManagement>  <build>     <plugins>         <plugin>             <groupId>org.springframework.boot</groupId>             <artifactId>spring-boot-maven-plugin</artifactId>         </plugin>     </plugins> </build>  <properties>     <maven.compiler.source>1.8</maven.compiler.source>     <maven.compiler.target>1.8</maven.compiler.target> </properties> </project> 

I have a "clean sheat" .m2 settings.xml, and i have cleaned my local repository, and made sure i can connect to the spring milestone repository.

[INFO] ------------------------------------------------------------------------ [INFO] Building application 1.0-SNAPSHOT [INFO] ------------------------------------------------------------------------ Downloading: https://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-maven-plugin/2.0.0.M1/spring-boot-maven-plugin-2.0.0.M1.pom [WARNING] The POM for org.springframework.boot:spring-boot-maven-plugin:jar:2.0.0.M1 is missing, no dependency information available Downloading: https://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-maven-plugin/2.0.0.M1/spring-boot-maven-plugin-2.0.0.M1.jar [INFO] ------------------------------------------------------------------------ [INFO] Reactor Summary: [INFO] . . .  [INFO] plugin ............................................. SUCCESS [  0.327 s] [INFO] application ........................................ FAILURE [  0.881 s] [INFO] webapp ............................................. SKIPPED [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ . . . . .  [INFO] ------------------------------------------------------------------------ [ERROR] Plugin org.springframework.boot:spring-boot-maven-plugin:2.0.0.M1 or one of its dependencies could not be resolved: Could not find artifact org.springframework.boot:spring-boot-maven-plugin:jar:2.0.0.M1 in central (https://repo.maven.apache.org/maven2) -> [Help 1] 

Answer 1

Add Spring Plugin Release Repo to Plugin-Repositories. So that it can find the spring-boot-maven-plugin-2.0.0.M1.jar. I have seen that it contains in that repo

Add the below lines under <project> tag as like:

<project> <!------ others lines -->     <pluginRepositories>         <pluginRepository>             <id>repository.spring.release</id>             <name>Spring GA Repository</name>             <url>https://repo.spring.io/plugins-release/</url>         </pluginRepository>     </pluginRepositories> </project> 

EDIT

As I have no com.test.testplugin, I have checked with the followings. Please, remove the <dependencyManagement> and put <dependencies> under <project>. Final pom.xml looks like:

<?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.testapplication</groupId>     <artifactId>application</artifactId>     <version>1.0-SNAPSHOT</version>     <packaging>jar</packaging>      <parent>         <groupId>org.springframework.boot</groupId>         <artifactId>spring-boot-starter-parent</artifactId>         <version>2.0.0.M1</version>     </parent>      <pluginRepositories>         <pluginRepository>             <id>repository.spring.release</id>             <name>Spring GA Repository</name>             <url>https://repo.spring.io/plugins-release/</url>         </pluginRepository>     </pluginRepositories>      <repositories>         <repository>             <id>repository.spring.milestone</id>             <name>Spring Milestone Repository</name>             <url>https://repo.spring.io/milestone</url>         </repository>     </repositories>     <dependencies>         <dependency>             <groupId>org.springframework.boot</groupId>             <artifactId>spring-boot-starter-web</artifactId>         </dependency>         <dependency>             <groupId>org.springframework</groupId>             <artifactId>spring-context</artifactId>         </dependency>         <dependency>             <groupId>junit</groupId>             <artifactId>junit</artifactId>         </dependency>         <dependency>             <groupId>org.mockito</groupId>             <artifactId>mockito-core</artifactId>         </dependency>     </dependencies>      <build>         <plugins>             <plugin>                 <groupId>org.springframework.boot</groupId>                 <artifactId>spring-boot-maven-plugin</artifactId>             </plugin>         </plugins>     </build>      <properties>         <maven.compiler.source>1.8</maven.compiler.source>         <maven.compiler.target>1.8</maven.compiler.target>     </properties> </project> 

Answer 2

To use spring-boot milestone versions, add following to pom.xml, between <project></project>:

<repositories>     <!-- for spring milestone -->     <repository>         <id>spring.milestone</id>         <url>http://repo.spring.io/milestone</url>     </repository> </repositories> <pluginRepositories>     <!-- for spring milestone -->     <pluginRepository>         <id>spring.milestone</id>         <url>http://repo.spring.io/milestone</url>     </pluginRepository> </pluginRepositories>