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https://issues.apache.org/jira/browse/MNG-6397?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17186816#comment-17186816
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Michael Osipov commented on MNG-6397:
-------------------------------------
[~alan-czajkowski],
https://www.jfrog.com/confluence/display/JFROG/Maven+Repository#MavenRepository-ManuallyOverridingtheBuilt-inRepositories.
> Maven Transitive Dependency Resolution Does Not Respect Repository Definition
> in pom.xml
> ----------------------------------------------------------------------------------------
>
> Key: MNG-6397
> URL: https://issues.apache.org/jira/browse/MNG-6397
> Project: Maven
> Issue Type: New Feature
> Components: Artifacts and Repositories, Dependencies, POM
> Affects Versions: 3.5.0, 3.5.2, 3.5.3, 3.6.0, 3.6.1, 3.6.3
> Environment: Apache Maven 3.5.0
> (ff8f5e7444045639af65f6095c62210b5713f426; 2017-04-03T15:39:06-04:00)
> Maven home: /usr/local/share/maven
> Java version: 1.8.0_161, vendor: Oracle Corporation
> Java home:
> /Library/Java/JavaVirtualMachines/jdk1.8.0_161.jdk/Contents/Home/jre
> Default locale: en_US, platform encoding: UTF-8
> OS name: "mac os x", version: "10.10.5", arch: "x86_64", family: "mac"
> Reporter: Alan Czajkowski
> Priority: Critical
> Labels: maven
>
> _*Note:* I am trying to do a build behind a firewall which means I cannot
> access the Internet, I can only access my internal Maven repository inside my
> network, so:_
> - _grabbing artifacts from https://artifacts.example.com/repository/maven/
> works fine_
> - _grabbing artifacts from anywhere else fails due to firewall restrictions_
> Let's begin:
> My {{pom.xml}} has the following:
> {code:xml}
> ...
> <dependencies>
> ...
> <dependency>
> <groupId>org.springframework.boot</groupId>
> <artifactId>spring-boot-starter-web</artifactId>
> <version>2.0.0.RELEASE</version>
> </dependency>
> ...
> </dependencies>
> ...
> <repositories>
> ...
> <repository>
> <id>central</id>
> <name>Public</name>
> <url>https://artifacts.example.com/repository/maven/</url>
> <releases>
> <enabled>true</enabled>
> </releases>
> <snapshots>
> <enabled>true</enabled>
> </snapshots>
> </repository>
> ...
> </repositories>
> ...
> {code}
> The {{dependency:tree}} for the {{spring-boot-starter-web}} is as follows:
> {code:java}
> +- org.springframework.boot:spring-boot-starter-web:jar:2.0.0.RELEASE:compile
> | +-
> org.springframework.boot:spring-boot-starter-json:jar:2.0.0.RELEASE:compile
> | | +-
> com.fasterxml.jackson.datatype:jackson-datatype-jdk8:jar:2.9.4:compile
> | | +-
> com.fasterxml.jackson.datatype:jackson-datatype-jsr310:jar:2.9.4:compile
> | | \-
> com.fasterxml.jackson.module:jackson-module-parameter-names:jar:2.9.4:compile
> | +-
> org.springframework.boot:spring-boot-starter-tomcat:jar:2.0.0.RELEASE:compile
> | | \- org.apache.tomcat.embed:tomcat-embed-websocket:jar:8.5.28:compile
> | +- org.hibernate.validator:hibernate-validator:jar:6.0.7.Final:compile
> | | +- javax.validation:validation-api:jar:2.0.1.Final:compile
> | | +- org.jboss.logging:jboss-logging:jar:3.3.0.Final:compile
> | | \- com.fasterxml:classmate:jar:1.3.1:compile
> | \- org.springframework:spring-web:jar:5.0.4.RELEASE:compile
> {code}
> How is it that the build fails as such:
> {code:java}
> ...
> Downloading:
> https://repo.spring.io/milestone/org/jboss/shrinkwrap/shrinkwrap-bom/1.2.3/shrinkwrap-bom-1.2.3.pom
> Downloading:
> https://repo.spring.io/snapshot/org/jboss/shrinkwrap/shrinkwrap-bom/1.2.3/shrinkwrap-bom-1.2.3.pom
> Downloading:
> https://dl.bintray.com/rabbitmq/maven-milestones/org/jboss/shrinkwrap/shrinkwrap-bom/1.2.3/shrinkwrap-bom-1.2.3.pom
> Downloading:
> https://repo.maven.apache.org/maven2/org/jboss/shrinkwrap/shrinkwrap-bom/1.2.3/shrinkwrap-bom-1.2.3.pom
> ...
> [ERROR] Failed to execute goal on project maven-multi-module-demo-backend:
> Could not resolve dependencies for project
> com.example.pipe:maven-multi-module-demo-backend:war:1.0.0-SNAPSHOT: Failed
> to collect dependencies at
> org.springframework.boot:spring-boot-starter-web:jar:2.0.0.RELEASE ->
> org.hibernate.validator:hibernate-validator:jar:6.0.7.Final: Failed to read
> artifact descriptor for
> org.hibernate.validator:hibernate-validator:jar:6.0.7.Final: Could not
> transfer artifact org.jboss.shrinkwrap:shrinkwrap-bom:pom:1.2.3 from/to
> spring-milestone (https://repo.spring.io/milestone): Connection reset ->
> [Help 1]
> ...
> {code}
> when I did not even reference this repo {{spring-milestone
> ([https://repo.spring.io/milestone])}} anywhere in my {{pom.xml}}?
> When you go down the Spring Boot rabbit hole (go into the
> {{spring-boot-starter-web}}'s {{pom.xml}} and then traverse up its parent-pom
> structure a few jumps) you'll eventually get to a parent-pom
> {{spring-boot-dependencies}} with this definition:
> {code:xml}
> ...
> <repositories>
> <repository>
> <snapshots>
> <enabled>false</enabled>
> </snapshots>
> <id>spring-milestone</id>
> <name>Spring Milestone</name>
> <url>https://repo.spring.io/milestone</url>
> </repository>
> <repository>
> <snapshots>
> <enabled>true</enabled>
> </snapshots>
> <id>spring-snapshot</id>
> <name>Spring Snapshot</name>
> <url>https://repo.spring.io/snapshot</url>
> </repository>
> <repository>
> <snapshots>
> <enabled>false</enabled>
> </snapshots>
> <id>rabbit-milestone</id>
> <name>Rabbit Milestone</name>
> <url>https://dl.bintray.com/rabbitmq/maven-milestones</url>
> </repository>
> </repositories>
> ...
> {code}
> How is it that the Maven build does _not_ even attempt to reach out to
> [https://artifacts.example.com/repository/maven/] to try to find the missing
> dependency {{shrinkwrap-bom}}? and only reaches out to the above repos only
> and not the one defined in my own {{pom.xml}}?
> *This seems like a transitive dependency resolution bug to me as the Maven
> build does not even make a single attempt at trying to get {{shrinkwrap-bom}}
> from the {{<repository>}} that I have explicitly defined in my {{pom.xml}}.
> The (grand)parents of the {{spring-boot-starter-web}} dependency completely
> hi-jack the repository list that the build pulls from (this type of
> hi-jacking should not be allowed). The {{shrinkwrap-bom}} artifact does exist
> in [https://artifacts.example.com/repository/maven/] and can be fetched no
> problem if it is explicitly defined in my {{pom.xml}} but defining it
> explicitly would be a work-around and I cannot use this work-around in my
> situation.*
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