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Posted to issues@maven.apache.org by "wuzishu (Jira)" <ji...@apache.org> on 2020/04/11 01:05:00 UTC
[jira] [Commented] (MNG-6879) When the repo with the id of central
is configured in settings.xml and the scope = import dependency is included
in the project of the project, the central repo has a problem
[ https://issues.apache.org/jira/browse/MNG-6879?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17081072#comment-17081072 ]
wuzishu commented on MNG-6879:
------------------------------
In fact, even if the central mirror is added, there is still same problem
1. The final repo priority of maven is slightly different from the expected one, resulting in ambiguity during use.
For example, a mirrored settings.xml is added as follows:
{code:java}
//代码占位符
<mirror>
<id>nexus-aliyun</id>
<mirrorOf>central</mirrorOf>
<name>Nexus aliyun</name>
<url>http://maven.aliyun.com/nexus/content/groups/public</url>
</mirror>
{code}
The final repo priority will be like this:
nexus>test>mirror of central
A little different from the expected repo priority,not like mirror of central>nexus>test
2. If one of the first two repo has a connection timeout, it cannot pull the dependency
Will directly report the connection timeout exception and terminate
> When the repo with the id of central is configured in settings.xml and the scope = import dependency is included in the project of the project, the central repo has a problem
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: MNG-6879
> URL: https://issues.apache.org/jira/browse/MNG-6879
> Project: Maven
> Issue Type: Bug
> Components: Artifacts and Repositories
> Affects Versions: 3.6.2
> Environment: Mac,maven 3.6.2
> Reporter: wuzishu
> Priority: Major
> Attachments: image-2020-03-24-21-39-54-127.png, image-2020-03-24-21-47-50-561.png, image-2020-03-24-21-49-31-997.png, image-2020-03-24-21-57-58-635.png, image-2020-03-24-21-58-35-400.png, image-2020-03-24-22-00-08-867.png, image-2020-03-24-22-01-04-185.png
>
>
> When the repo with the id of central is configured in settings.xml and the scope = import dependency is included in the project of the project, the central repo has a problem
>
> *settings.xml配置如下*:
> {code:java}
> <profile>
> <id>nexusRep</id>
> <repositories>
> <repository>
> <id>nexus</id>
> <name>Nexus Repository</name>
> <url>https://repo.spring.io/libs-release1</url>
> <releases><enabled>true</enabled></releases>
> <snapshots><enabled>true</enabled></snapshots>
> </repository>
> </repositories>
> <pluginRepositories>
> <pluginRepository>
> <id>nexus</id>
> <name>Nexus pluginRepository</name>
> <url>https://repo.spring.io/libs-release1</url>
> <releases><enabled>true</enabled></releases>
> <snapshots><enabled>true</enabled></snapshots>
> </pluginRepository>
> </pluginRepositories>
> </profile>
> <profile>
> <id>central</id>
> <repositories>
> <repository>
> <id>central</id>
> <name>Nexus Repository</name>
> <url>https://repo.spring.io/libs-release</url>
> <releases><enabled>true</enabled></releases>
> <snapshots><enabled>true</enabled></snapshots>
> </repository>
> </repositories>
> <pluginRepositories>
> <pluginRepository>
> <id>central</id>
> <name>Nexus pluginRepository</name>
> <url>https://repo.spring.io/libs-release</url>
> <releases><enabled>true</enabled></releases>
> <snapshots><enabled>true</enabled></snapshots>
> </pluginRepository>
> </pluginRepositories>
> </profile>
>
> </profiles>
> <!-- activeProfiles
> | List of profiles that are active for all builds.
> |
> <activeProfiles>
> <activeProfile>alwaysActiveProfile</activeProfile>
> <activeProfile>anotherAlwaysActiveProfile</activeProfile>
> </activeProfiles>
> -->
> <activeProfiles>
> <activeProfile>nexusRep</activeProfile>
> <activeProfile>central</activeProfile>
> </activeProfiles>
> {code}
>
> *project pom.xml:*
> {code:java}
> //代码占位符
> <?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
> <modelVersion>4.0.0</modelVersion>
> <parent>
> <groupId>org.springframework.boot</groupId>
> <artifactId>spring-boot-starter-parent</artifactId>
> <version>2.2.5.RELEASE</version>
> <relativePath/> <!-- lookup parent from repository -->
> </parent>
> <groupId>com.example</groupId>
> <artifactId>demo</artifactId>
> <version>0.0.1-SNAPSHOT</version>
> <name>demo</name>
> <description>Demo project for Spring Boot</description>
> <properties>
> <java.version>1.8</java.version>
> <spring-cloud-dependencies.version>Angel.SR6</spring-cloud-dependencies.version>
> </properties>
> <dependencies>
> <dependency>
> <groupId>org.springframework.boot</groupId>
> <artifactId>spring-boot-starter-web</artifactId>
> </dependency>
> <dependency>
> <groupId>org.springframework.cloud</groupId>
> <artifactId>spring-cloud-dependencies</artifactId>
> <version>${spring-cloud-dependencies.version}</version>
> <type>pom</type>
> <scope>import</scope>
> </dependency>
> <dependency>
> <groupId>org.projectlombok</groupId>
> <artifactId>lombok</artifactId>
> <scope>compile</scope>
> <optional>true</optional>
> </dependency>
> <dependency>
> <groupId>org.springframework.boot</groupId>
> <artifactId>spring-boot-starter-test</artifactId>
> <scope>test</scope>
> <exclusions>
> <exclusion>
> <groupId>org.junit.vintage</groupId>
> <artifactId>junit-vintage-engine</artifactId>
> </exclusion>
> </exclusions>
> </dependency>
> </dependencies>
> <build>
> <plugins>
> <plugin>
> <groupId>org.springframework.boot</groupId>
> <artifactId>spring-boot-maven-plugin</artifactId>
> </plugin>
> </plugins>
> </build>
> <repositories>
> <repository>
> <id>test</id>
> <name>repo</name>
> <releases>
> <enabled>true</enabled>
> </releases>
> <snapshots>
> <enabled>true</enabled>
> </snapshots>
> <url>https://repo.spring.io/libs-release</url>
> </repository>
> </repositories>
> </project>
> {code}
> The theoretical maven remote repository priority is:
> !image-2020-03-24-21-47-50-561.png|width=412,height=237!
> However, when resolving a scope = import dependency, such as:
> !image-2020-03-24-21-49-31-997.png|width=705,height=185!
> The warehouse priority will become as shown in the figure below:
> !image-2020-03-24-21-39-54-127.png|width=712,height=379!
> Found that the central repository was reset to the default, and all dependent downloads will become this repo priority in the future.
> When resolving scope = import dependencies, this place will cause the resolving repo to become the default central:
> !image-2020-03-24-21-58-35-400.png|width=663,height=194!
> !image-2020-03-24-21-57-58-635.png|width=1091,height=538!
> Finally at this place, the default modelResoler repo will be replaced with the default central:
> !image-2020-03-24-22-00-08-867.png|width=912,height=194!
> !image-2020-03-24-22-01-04-185.png|width=685,height=324!
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