When the directory ../../ above the infinispan source dir is not writable,
than build fails:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.7:run (deploy) on project infinispan-rhq-plugin: An Ant BuildException has occured: Directory /usr/local/inubit/jon/dev-container/jbossas/server/default/deploy/${rhq.earName}/rhq-downloads/rhq-plugins creation was not successful for an unknown reason
[ERROR] around Ant part ...<mkdir dir="../../..//jon/dev-container/jbossas/server/default/deploy/${rhq.earName}/rhq-downloads/rhq-plugins"/>... @ 4:116 in /usr/local/inubit/tf/infinispan/rhq-plugin/target/antrun/build-main.xml
[ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.7:run (deploy) on project infinispan-rhq-plugin: An Ant BuildException has occured: Directory /usr/local/inubit/jon/dev-container/jbossas/server/default/deploy/${rhq.earName}/rhq-downloads/rhq-plugins creation was not successful for an unknown reason

In current case the /usr/local/inubit/ is not writable for the user.