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  • Developing OpenDJ with Maven
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OpenDJ 3 build has been migrated from Ant to Maven starting from revision 11702 (February, 10 2015).

The OpenDJ server is now located under the master branch as the opendj-server-legacy module (use git with a community login):

Although it is still possible to run some ant tasks, a full build can't be done any more using Ant, due to incompatible changes related to messages properties files.


Minimum requirement is Apache Maven 3.0.4

If you have a version already installed and previously built with Ant, run a clean to ensure all generated classes are deleted:

ant clean


You can either build from trunk/opendj (do it at least once when starting) or directly from trunk/opendj/opendj-server-legacy (once you have built the complete opendj project, provided that not dependent changes occured in another maven sub-module)

  • Build the project (Note: it does not run the tests for opendj-server-legacy module)

    mvn clean install
  • Build with precommit (includes checkstyle, copyright check, running tests)

    mvn clean install -Pprecommit
    mvn clean install -Pprecommit -DskipTests=true      # without tests
    mvn clean install -Pprecommit -Pupdate-copyrights   # also update the copyright dates of modified files
  • Only update the copyright dates of modified files

    mvn validate -Pupdate-copyrights                                                       # updates copyright for files touched compared to branch "origin/master"
    mvn validate -Pupdate-copyrights -DcheckCopyrightDiffReferenceBranchName=branch/name   # updates copyright for files touched compared to branch "branch/name"
    mvn validate -Pprecommit -DcheckCopyrightDiffReferenceBranchName=branch/name           # run precommit checks comparing touched files to branch "branch/name"
  • Regenerate messages and configuration classes (does not re-compile)

    mvn process-resources
  • Running tests. opendj-server-legacy tests are run in the integration-test phase (not the test phase) because a lot of them requires a running server. 

    mvn install -Pprecommit
    mvn integration-test -Pprecommit  # to stop just after running tests

    Options to run the tests:

    mvn integration-test -Pprecommit -Dgroups=group1,group2             # to include TestNG groups
    mvn integration-test -Pprecommit -DexcludedGroups=group1,group2     # to exclude TestNG groups
    mvn integration-test -Pprecommit -Dit.test=MyTest                   # to run only MyTest class
    mvn integration-test -Pprecommit -Dit.test=MyTest,MyTest2           # to run MyTest and MyTest2 class
    mvn integration-test -Pprecommit "-Dit.test=Backend*"               # to run all classes starting with "Backend". Note that quotes are mandatory to avoid shell interpretation of the '*'
    mvn integration-test -Pprecommit "-Dit.test=MyTest#myTestMethod"    # to run only myTestMethod() in MyTest class
    mvn integration-test -Pprecommit "-Dit.test=Backend*#testProcess*"  # to run all methods starting with "testProcess" in all test classes starting with "Backend" 

    The full documentation of failsafe plugin, used behind the scene to run TestNG tests, is available here:

    If you want to debug the test, add the following option to the maven command line: "-Dmaven.failsafe.debug="-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 -Xnoagent -Djava.compiler=NONE""

    If you only want to run the tests, see the Also see forgerock community forum:

  • Build with SNMP

    mvn clean install -Dopendmk.lib.dir=/path/to/lib


Working with an IDE

When you're using Maven in an IDE you often find the need for your IDE to resolve source code and Javadocs for your library dependencies.

There's an easy way to accomplish that goal:

mvn dependency:sources
mvn dependency:resolve -Dclassifier=javadoc

Running slow tests

In opendj-server-legacy/pom.xml, remove or comment the following lines from maven-failsafe-plugin configuration:


And then run:

mvn integration-test -Pprecommit -Dgroups=slow
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  1. Unknown User (wyadams)

    Don't believe it when this page says that "mvn clean install" doesn't run the tests, because it does...

    1. Thanks for the feedback, this sentence was only true for opendj-server-legacy module. I have updated the page to reflect it.

      1. Unknown User (wyadams)

        Thanks for the prompt response & clarification! Sorry if my comment sounded terse, but I'm trying to figure out how to migrate a plugin from 2.6.3 to 3.0.0, and I'm having a tough time, since I didn't write it (didn't even see it until a few days ago) & only managed to pull down the new OpenDJ source yesterday, and got it built today.

        1. Building a plugin on 3.0 is not possible without a lot of manual work ( OPENDJ-2305 - Getting issue details... STATUS ).
          You have to compile the plugin within opendj-server-legacy to have both versions of config classes and associated files.
          It will be possible starting with 3.5 ( OPENDJ-2932 - Getting issue details... STATUS ).
          1. Unknown User (wyadams)

            I understood there's a lot involved, but am still trying to sort out the apparent changes in directory structure (e.g. assembly?), as it relates to files (which I'm not even certain I know which/how many) supporting the 'generate-sources' stuff. (Or do I not need to switch the plugin from ant to maven yet?)

            1. I'd suggest you take the opendj-server-example-plugin (maven-based) as a base and convert the old plugin to this new structure since this is the future for OpenDJ plugins.

              You can find it in the master branch of OpenDJ repository.

  2. Unknown User (guypaddock)

    Another useful option that's not documented here is -DignoreCopyrightErrors=true, in case you're just trying to run tests without caring (smile)