[UIMA-6043] uv3 add -D flag to report on feature structure pinning

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.2SDK
• Fix Version/s: 3.1.0SDK
• Component/s: Core Java Framework
• Assignee: Marshall Schor
• Reporter: Marshall Schor
• Created: 09/May/19 21:15
• Updated: 15/Jul/19 18:43
• Resolved: 15/Jul/19 18:43

Description

When migrating to UIMA v3, code might inadvertently cause some feature structures (FSs) to be pinned in memory, typically by producing some int value that could be used to retrieve the FS.  If pinned, a FS cannot be garbage collected.

Turning on this -D flag will produce a report of where code is pinning FSs.