OpenDJ Nightly Builds…

For the last few months, there’s been a lot of changes in the OpenDJ project in order to prepare the next major release : OpenDJ 3.0.0. While doing so, we’ve tried to keep options opened and continued to make most of the changes in the trunk/opends part, keeping the possibility to release a 2.8 version. And we’ve made tons of work in branches as well as in trunk/opendj. As part of the move to the trunk, we’ve changed the factory to now build with Maven. Finally, at the end of last week, we’ve made the switch on the nightly builds and are now building what will be OpenDJ 3, from the trunk.

For those who are regularly checking the nightly builds, the biggest change is going to be the version number. The new build is now showing a development version of 3.0.

$ start-ds -V
Build 20150506012828
 Name Build number Revision number
Extension: snmp-mib2605 3.0.0-SNAPSHOT 12206

We are still missing the MSI package (sorry to the Windows users, we are trying to find the Maven plugin that will allow us to build the package in a similar way as previously with ant), and we are also looking at restoring the JNLP based installer, but otherwise OpenDJ 3 nightly builds are available for testing, in different forms : Zip, RPM and Debian packages.

OpenDJ Nightly Builds at

We have also changed the minimal version of Java required to run the OpenDJ LDAP directory server. Java 7 or higher is required.

We’re looking forward to getting your feedback.

Filed under: Directory Services Tagged: build, builds, directory-server, ForgeRock, java, ldap, maven, nightly, opendj, opensource, snapshot

Jenkins and the mysterious Accept timed out error

Not so long ago I’ve been trying to set up a new Jenkins job on a freshly created Jenkins slave. Unfortunately for me the first attempt of running the Maven build resulted in a failure:

ERROR: Aborted Maven execution for InterruptedIOException Accept timed out
 at Method)
 at hudson.maven.AbstractMavenProcessFactory$SocketHandler$AcceptorImpl.accept(
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(
 at java.lang.reflect.Method.invoke(
 at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(
 at hudson.remoting.RemoteInvocationHandler$
 at hudson.remoting.RemoteInvocationHandler$
 at hudson.remoting.UserRequest.perform(
 at hudson.remoting.UserRequest.perform(
 at hudson.remoting.Request$
 at hudson.remoting.InterceptingExecutorService$
 at java.util.concurrent.ThreadPoolExecutor.runWorker(
 at java.util.concurrent.ThreadPoolExecutor$

Jenkins normally kicks off Maven builds by forking a Maven process on the system and then using Maven extensions to become part of the build process. So let’s have a look at an example command Jenkins runs for a Maven build:

[OpenAM] $ /jdk8/bin/java -cp /jenkins/maven31-agent.jar:/apache-maven-3.2.3/boot/plexus-classworlds-2.5.1.jar:/apache-maven-3.2.3/conf/logging jenkins.maven3.agent.Maven31Main /apache-maven-3.2.3 /jenkins/slave.jar /jenkins/maven31-interceptor.jar /jenkins/maven3-interceptor-commons.jar 57186

Here, that last parameter, 57186, looks quite suspiciously like a random port number. Could it be that Jenkins tries to connect to this local port and this connection fails resulting in the above stacktrace? Well, easy to test, let’s run the following iptables command on the box:

iptables -I INPUT -i lo -j ACCEPT

Try to rerun the build, and voilà, the build progresses further. Lesson learned. ;)