Our 028-dynamic-hiearchy tests fail randomly on the subdax job, where the planner fails with cannot find inner.dax that is supposed to be generated by generate_dax job

8.607 PST: [CONFIG] pegasus.home.sysconfdir=/lfs1/software/bamboo/data/xml-data/build-dir/PEGASUS-WT45-T28A/pegasus/etc
11-Dec-2015 14:51:41 2015.12.11 14:50:38.608 PST: [CONFIG] pegasus.log.*=/lfs1/software/bamboo/data/xml-data/build-dir/PEGASUS-WT45-T28A/test/core/028-dynamic-hierarchy/work/bamboo/pegasus/local-hierarchy/run0001/subdax_inner_ID0000002.pre.log
11-Dec-2015 14:51:41 2015.12.11 14:50:38.608 PST: [CONFIG] pegasus.workflow.root.uuid=e69ba852-fc3d-48de-a0f4-222ca8b21170
11-Dec-2015 14:51:41 2015.12.11 14:50:39.349 PST: [DEBUG] Retrieving Metadata from the DAX file /lfs1/software/bamboo/data/xml-data/build-dir/PEGASUS-WT45-T28A/test/core/028-dynamic-hierarchy/work/local-site/scratch/bamboo/pegasus/local-hierarchy/run0001/inner.dax
11-Dec-2015 14:51:41 2015.12.11 14:50:39.535 PST: [ERROR] Problem while determining the version of dax class java.lang.RuntimeException: java.io.FileNotFoundException: The file (/lfs1/software/bamboo/data/xml-data/build-dir/PEGASUS-WT45-T28A/test/core/028-dynamic-hierarchy/work/local-site/scratch/bamboo/pegasus/local-hierarchy/run0001/inner.dax ) specified does not exist
11-Dec-2015 14:51:41 2015.12.11 14:50:39.535 PST: [CONFIG] DAX Parser Class to be loaded is DAXParser3
11-Dec-2015 14:51:41 2015.12.11 14:50:39.569 PST: [CONFIG] Picking schema /lfs1/software/bamboo/data/xml-data/build-dir/PEGASUS-WT45-T28A/pegasus/share/pegasus/schema/dax-3.5.xsd
11-Dec-2015 14:51:41 2015.12.11 14:50:39.570 PST: [INFO] event.pegasus.parse.dax dax.id /lfs1/software/bamboo/data/xml-data/build-dir/PEGASUS-WT45-T28A/test/core/028-dynamic-hierarchy/work/local-site/scratch/bamboo/pegasus/local-hierarchy/run0001/inner.dax - STARTED
11-Dec-2015 14:51:41 2015.12.11 14:50:39.571 PST: [ERROR] IO Error :The file (/lfs1/software/bamboo/data/xml-data/build-dir/PEGASUS-WT45-T28A/test/core/028-dynamic-hierarchy/work/local-site/scratch/bamboo/pegasus/local-hierarchy/run0001/inner.dax ) specified does not exist
11-Dec-2015 14:51:41 2015.12.11 14:50:39.571 PST: [INFO] event.pegasus.parse.dax dax.id /lfs1/software/bamboo/data/xml-data/build-dir/PEGASUS-WT45-T28A/test/core/028-dynamic-hierarchy/work/local-site/scratch/bamboo/pegasus/local-hierarchy/run0001/inner.dax (0.001 seconds) - FINISHED
11-Dec-2015 14:51:41 2015.12.11 14:50:39.591 PST: [FATAL ERROR] java.lang.RuntimeException: Method called before the abstract dag for the partition was fully generated
11-Dec-2015 14:51:41 at edu.isi.pegasus.planner.parser.dax.DAX2CDAG.getConstructedObject(DAX2CDAG.java:284)
11-Dec-2015 14:51:41 at edu.isi.pegasus.planner.client.CPlanner.parseDAX(CPlanner.java:1855)
11-Dec-2015 14:51:41 at edu.isi.pegasus.planner.client.CPlanner.executeCommand(CPlanner.java:496)
11-Dec-2015 14:51:41 at edu.isi.pegasus.planner.client.CPlanner.executeCommand(CPlanner.java:363)