I'm having the same problem.
However the create job and update jaspersoft users job fails with a login failure for the ppmjasperadmin user.
This user is created (according to the install guide) during the import of the jaspersoft content. No idea which password is created or on how to 'recreate' this.
If I understand correctly, the DWH user/pw combination is used within Jaspersoft to get data for the reports.
The ppmjasperadmin user is used by clarity to connect to Jaspersoft to run the reports.
If I run a report from within Jaspersoft I get an engine Error :
2015-04-14 15:32:08,114 ERROR GenericExceptionMapper,http-apr-8080-exec-5:47 - Unexpected error occurs
java.lang.NullPointerException
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl.executeQuery(EngineServiceImpl.java:2146)
2015-04-14 16:03:10,500 ERROR GenericExceptionMapper,http-apr-8080-exec-1:47 - Unexpected error occurs
com.jaspersoft.jasperserver.api.JSException: jsexception.error.creating.connection
This looks like a connection error to the dwh database.
From Clarity, advanced reporting => View => Repository => Data Sources => CA PPM BEAN The connection test is ok
From Jaspersoft, advance reporting=>View =>Repository => Data Sources => CA PPM BEAN The connection test fails.
The only difference between the 2 is the Save location (which is greyed out and cannot be changed.)
If someone has further ideas, they would be more than welcome :-)