I observed two problems when performing JSR88 deployment. Though they are at completely different places, it seems they both have the same root cause: a JSR88 module name, which contains the path to the temp dir, seems to be treated a a file name later.

First observation is this error message when deploying the EAR file attached to #AS7-3474 :

21:24:44,781 ERROR [org.jboss.as.ejb3] (MSC service thread 1-3) JBAS014132: Could not create directory C:\temp\jboss-as-7.1.0.Final-SNAPSHOT\standalone\data\timer-service-data\file:\C:\DOCUME~1\Knuffi\LOCALS~1\Temp\Stateless.StatelessEJB.GeometricModelBean to persist EJB timers.

I don't know whether this breaks something, I just noticed the error message.

And the second problem happened when deploying a small Struts2 sample:
21:23:10,875 FATAL [org.apache.jasper.EmbeddedServletOptions] (MSC service thread 1-4) The scratchDir you specified: C:\temp\jboss-as-7.1.0.Final-SNAPSHOT\standalone\tmp\work\jboss.web\default-host\file:_C:_DOCUME~1_Knuffi_LOCALS~1_Temp_StrutsBasics is unusable.

The path is different, but the problem seems to be the same (here ":" is not removed from the path name). This caused a failed deployment, thus is is really a problem.

I posted the second error plus a small sample (including my famous JSR88 deployer client ) in the JBossWeb forum, but did not receive a reply up to now. See here for the sample: https://community.jboss.org/thread/194841