maven-faq

Maven – How to force re-download project dependencies?

by

In Maven, you can use Apache Maven Dependency Plugin, goal dependency:purge-local-repository to remove the project dependencies from the local repository, and re-download it again. Terminal $ mvn dependency:purge-local-repository [INFO] Scanning for projects… [INFO] [INFO] ————–< com.mkyong.examples:maven-code-coverage >————— [INFO] Building maven-code-coverage 1.0-SNAPSHOT [INFO] ——————————–[ jar ]——————————— [INFO] [INFO] — maven-dependency-plugin:2.8:purge-local-repository (default-cli) @ maven-code-coverage — Downloading from …

Read more

How to add remote repository in Maven

by

Not every library is stored in the Maven Central Repository, some libraries are only available in Java.net or JBoss repository (remote repository). 1. Java.net Repository pom.xml <repositories> <repository> <id>java-net-repo</id> <url>https://maven.java.net/content/repositories/public/</url> </repository> </repositories> 2. JBoss Repository pom.xml <repositories> <repository> <id>jboss-repo</id> <url>http://repository.jboss.org/nexus/content/groups/public/</url> </repository> </repositories> 3. Spring Repository pom.xml <repositories> <repository> <id>spring-repo</id> <url>https://repo.spring.io/release</url> </repository> </repositories> References Configuring Maven …

Read more

Maven dependency mechanism, how it works

by

Maven’s dependency mechanism help to download all the necessary dependency libraries automatically, and maintain the version upgrade as well. Case study Let see a case study to understand how it works. Assume you want to use Log4J as your project logging mechanism. Here is what you do… 1. In traditional way Visit http://logging.apache.org/log4j/ Download the …

Read more

How to download from Maven remote repository?

by

According to Apache Maven : Downloading in Maven is triggered by a project declaring a dependency that is not present in the local repository (or for a SNAPSHOT, when the remote repository contains one that is newer). By default, Maven will download from the central repository. In Maven, when you’re declared library does not exist …

Read more

Where is Maven Central Repository?

by

By default, Maven will get project dependencies from Maven Local Repository, if it is not found, Maven will get it from the Maven Central Repository Maven Central Repository URL – https://repo.maven.apache.org/maven2 Maven Central Repository Search – https://search.maven.org/ This is how the Maven central repository search website looks like : History This is how the Maven …

Read more

Where is Maven local repository?

by

By default, Maven local repository is defaulted to ${user.home}/.m2/repository folder : Unix/Mac OS X – ~/.m2/repository Windows – C:\Users\{your-username}\.m2\repository When we compile a Maven project, Maven will download all the project’s dependency and plugin jars into the Maven local repository, save time for next compilation. 1. Find Maven Local Repository 1.1 If the default .m2 …

Read more