Finding missing Maven artifacts

Question

I\'m new to Maven, and struggling with adding dependencies. I\'m trying to convert an existing project to Maven, and after adding the dependencies for all the jars in my ref

Answer 1

It's more likely that your POM definition is not correct for log4j. Everything relating to log4j should be readily available in maven.

Also, if you know the name of the bundle (such as log4j) you can almost always do a quick google search "[bundle name] maven pom" within the first few hits you should either get the maven repo containing a quick snippet on how to include it, or the actual website for the bundled up jar and the maven instructions.

For example log4j:

    
        log4j
        log4j
        1.2.16
    
 

Sometimes though you just need to specify the repository to find the item in (if it's not hosted in the greater maven repositories)

You can specify a new repository like so

    
        Java.Net
        http://download.java.net/maven/2/
    

Finally when you absolutely cannot find the artifact already maven'd up for you (this is usually true for proprietary jars and or drivers that you cannot include with your project) you can have the user manually install the item via command line

mvn install:install-file -DgroupId=[group-id] -DartifactId=[artifact-id] -Dversion=[version] -Dfile=/path/to/the/file -Dpackaging=[type]

You can then reference it in your maven file using the information described above

For example I have a custom reference for a salesforce.com project

mvn install:install-file -DgroupId=com.salesforce -DartifactId=wsc -Dversion=22 -Dfile=\tsclient\H\development\java\wsc-22.jar -Dpackaging=jar

To access it in maven:

    com.salesforce
    wsc
    22

Finally, you can find the jars (or their maven info) at their respective websites (please note I'm just basing these links off the jar names, these may not be the actual websites, well sans the log4j which I know to be correct)

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Log4j