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Maven Default Settings.xml File Download

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Jaimee Beichner

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Dec 29, 2023, 6:22:04 PM12/29/23
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Those are integration test cases run under maven. In those tests, I need to get artifacts as dependencies. I can't hardcode a settings.xml location (or a settings.xml as resource) because this location changes between developer machines and with the locations on the CI server.



maven default settings.xml file download

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The SWR version I used were first the default one imported along with arquillian (1.0.0-alpha12 I believe), but that wasn't very convenient, so I bumped it to 1.0.0-beta? to finally go straight to 1.1.0-alpha-1.


Maven settings.xml file contains global configurations that are not specific to a project. It also contains secure information that is not meant to be distributed (e.g. passwords).


Most analysis properties will be read from your project. If you would like to override the default values of specific additional parameters, configure the parameter names found on the analysis parameters page in the section of your pom.xml like this:


On the Maven settings page, in the Maven home path field, specify the location of the Maven custom version installation. For the Maven wrapper, select the use Maven wrapper option from the list. In this case the version of Maven defined in the .mvn/wrapper/maven-wrapper.properties file will be used.






You can try forcing maven to build in offline mode, which tells it to use locally cached artifacts mvn clean build -o



Unfortunately if you are creating a fresh project without any downloaded dependencies, or you are just hacking away at a simple project then you will be blocked by this error, until you disable or change the settings.xml config.


However this relies on you constantly supplying an argument when running maven. Therefore I opted for an environment variable set to my alternative settings file. This variable can be set in .bashrc and updated.


By using this option, Jenkins will tell Maven to use a custom path for the build as the local Maven repository by using -Dmaven.repo.local

If specified as a relative path then this value well be resolved against the workspace root and not the current working directory.

ie. if .repository is specified then $WORKSPACE/.repository will be used.


Also, is it strictly necessary that the credentials for publishing be stored in a settings.xml file? Is this being done for backwards compatibility with Maven? If not, the recommended approach is to externalize credentials in a gradle.properties file.


Would it be worth looking at scripting the creation of the .m2/repository/ folder and .m2/settings.xml files for CI builds, in order to avoid needing them to exist inside the project source code repository?


This section explains the default configuration included in Nexus Repository Manager Pro and Nexus Repository Manager OSS, instructions for creating further Maven repositories as well as searching and browsing the repositories. Build tool configuration for Apache Maven, Apache Ant, Gradle and others tools follow. The configuration examples take advantage of the repository manager merging many repositories and exposing them via a repository group.


The format is used by many publicly available repositories. The Central Repository is the largest repository of components aimed at Java/JVM-based development and beyond and is used the Maven repository format for release components of numerous open source projects. It is configured as a proxy repository by default in Apache Maven and widely used in other tools.


A default installation of Nexus Repository Manager includes a proxy repository configured to access the Central Repository via HTTPS using the URL To reduce duplicate downloads and improve download speeds for your developers and CI servers, you should proxy all other remote repositories you access as proxy repositories as well.


Proxying the Oracle Maven Repository requires special HTTP options for the maven2 (proxy) recipe. Also, you must register for an account to access the external repository. Configure the proxy repository to access the Oracle repository, with these additional steps:


A hosted Maven repository can be used to deploy your own as well as third-party components. A default installation of Nexus Repository Manager includes a two hosted Maven repositories. The maven-releases repository uses a release version policy and the maven-snapshots repository uses a snapshot version policy.


A repository group is the recommended way to expose all your Maven repositories from the repository manager to your users, without needing any further client side configuration. A repository group allows you to expose the aggregated content of multiple proxy and hosted repositories as well as other repository groups with one URL for tool configuration. This is possible for Maven repositories by creating a new repository with the maven2 (group) recipe as documented in Repository Management.


A typical, useful example is the maven-public group that is configured by default. It aggregates the maven-central proxy repository with the maven-releases and maven-snapshots hosted repositories. Using the URL of the repository group gives you access to the packages in all three repositories with one URL. Any new component added as well as any new repositories added to the group will automatically be available.


You can change the default column order in the search and browse user interfaces to the familiar order of Group (groupId), Name (artifactId) and Version. Simply drag the Group column from the middle to the left using the header. This setting will be persisted as your preference in your web browser.


In Configuring Maven to Use a Single Repository Group a single profile called nexus is defined. It configures a repository and a pluginRepository with the id central that overrides the same repositories in the Super POM. The Super POM is internal to every Apache Maven install and establishes default values. These overrides are important since they change the repositories by enabling snapshots and replacing the URL with a bogus URL. This URL is overridden by the mirror setting in the same settings.xml file to point to the URL of your single repository group. This repository group can, therefore, contain release as well as snapshot components and Maven will pick them up.


Full example projects can be found in the maven folder of the example project in the nexus-3.x branch. A full build of the simple-project, including downloading the declared dependencies and uploading the build output to the repository manager can be invoked with mvn clean deploy.


Apache Ivy is a dependency manager often used in Apache Ant builds. It supports the Maven repository format and can be configured to download dependencies that can be declared in the ivy.xml file. This configuration can be contained in the ivysettings.xml. A minimal example for resolving dependencies from a repository manager running on localhost is shown below:


To deploy build outputs to a repository with the ivy:publish task, user credentials and the URL of the target repository have to be added to ivysettings.xml and the makepom and publish tasks have to be configured and invoked.


sbt has a built in dependency management component and defaults to the Maven repository format. In order to configure a sbt project to resolve dependencies declared in build.sbt file, a resolver, as shown in SBT Resolvers Configuration has to be declared.


Leiningen has a built in dependency management component and defaults to the Maven repository format. As a build tool it is mostly used for projects using the Clojure language. Many libraries useful for these projects are published to the Clojars repository. If you want to use these, you have to create two proxy repositories with the remote URL


The pom.xml file also contains configuration for the distribution management repositories that Maven will deploy packages to. Each repository must have a name and a deployment URL. Authentication for these repositories can be configured in the .m2/settings.xml file in the home directory of the user running Maven.


In this workflow, you can use the setup-java action. This action installs the given version of the JDK into the PATH, but it also configures a Maven settings.xml for publishing packages. By default, the settings file will be configured for GitHub Packages, but it can be configured to deploy to another package registry, such as the Maven Central Repository. If you already have a distribution management repository configured in pom.xml, then you can specify that id during the setup-java action invocation.


In this workflow, you can use the setup-java action. This action installs the given version of the JDK into the PATH, and also sets up a Maven settings.xml for publishing the package to GitHub Packages. The generated settings.xml defines authentication for a server with an id of github, using the GITHUB_ACTOR environment variable as the username and the GITHUB_TOKEN environment variable as the password. The GITHUB_TOKEN environment variable is assigned the value of the special GITHUB_TOKEN secret.


This workflow calls the setup-java action twice. Each time the setup-java action runs, it overwrites the Maven settings.xml file for publishing packages. For authentication to the repository, the settings.xml file references the distribution management repository id, and the username and password.


23:07:06 [ERROR] Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.8.2:deploy (default-deploy) on project REDACTED: Failed to deploy artifacts: Could not transfer artifact REDACTED from/to jenkins-maven-uploads (REDACTED/maven-releases/): Access denied to: -0.0.1.pom, ReasonPhrase: Forbidden. -> [Help 1]23:07:06 org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.8.2:deploy (default-deploy) on project REDACTED: Failed to deploy artifacts: Could not transfer artifact REDACTED from/to jenkins-maven-uploads (REDACTED/maven-releases/): Access denied to: -0.0.1.pom, ReasonPhrase: Forbidden.

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