[RANGER-2035] Errors accessing servicedefs with empty implClass with Oracle backend

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0.0, 0.7.1
• Fix Version/s: 0.7.2, 1.1.0, 1.0.1
• Component/s: admin
• Labels: admin oracle
• Environment: Oracle DB
• Flags: Patch
• Assignee: Zsombor Gegesy
• Reporter: Zsombor Gegesy
• Created: 23/Mar/18 09:09
• Updated: 28/Mar/18 08:08
• Resolved: 28/Mar/18 08:08

Description

Oracle treats empty strings and nulls as equals - if an empty string is inserted, later, it returns as NULL.
This cause problems when a service def is created, with implementation classname specified as a zero length string. However, when later it is retrieved or updated or delete, Ranger throws various exceptions. In 1.0.0 a couple of exceptions are fixed, because of RANGER-1377, however in 0.7, there is more NPE.