Some Eclipse Foundation services are deprecated, or will be soon. Please ensure you've read this important communication.

Bug 317520

Summary:

NullPointerException from Hashtable when persisting entity with HashMap

Product:

z_Archived

Reporter:

Tommy Odom <odom>

Component:

Eclipselink

Assignee:

Project Inbox <eclipselink.foundation-inbox>

Status:

RESOLVED DUPLICATE

QA Contact:

Severity:

normal

Priority:

CC:

christopher.delahunt, gordon.yorke, michael.f.obrien

Version:

unspecified

Target Milestone:

---

Hardware:

Macintosh

OS:

Mac OS X - Carbon (unsup.)

Whiteboard:

Attachments:

Description	Flags
NPE Stack Trace	none
Entity class causing the NPE	none
Sample code that in my environment produces the error	none
Patch to prevent NPE based on 2.0.2 tag	none

Description Tommy Odom

2010-06-21 17:27:49 EDT

Build Identifier: 

When persisting & flushing an entity that contains a Map<String, String> I get a NPE out of Hashtable.  As far as I can tell the NPE only occurs if I explicitly call flush and does not appear to be something that I can reproduce with in the junit tests provided with EclipseLink.  The provided patch does solve the issue but may not be the best approach to the fix, it may be better to ensure that DirectMapContainerPolicy.next(Iterator) returns an instance of Associate instead of Map.Entry as is currently happening in my scenario.  

I've also attached the source entity and some sample code that illustrates what is occurring around the time that the NPE happens.  

I am using static weaving on my types but I don't think that matters in this case but figured I'd mention it just in case.

Reproducible: Always

Comment 1 Tommy Odom

2010-06-21 17:28:21 EDT

Created attachment 172372 [details]
NPE Stack Trace

Comment 2 Tommy Odom

2010-06-21 17:28:47 EDT

Created attachment 172373 [details]
Entity class causing the NPE

Comment 3 Tommy Odom

2010-06-21 17:29:49 EDT

Created attachment 172374 [details]
Sample code that in my environment produces the error

This sample code uses some other types not provided.

Comment 4 Tommy Odom

2010-06-21 17:30:30 EDT

Created attachment 172375 [details]
Patch to prevent NPE based on 2.0.2 tag

Comment 5 Chris Delahunt

2010-07-26 11:09:21 EDT

This seems to have been fixed with refactoring for 211700 in 2.1.  The DirectMapContainerPolicy class no longer exists, so the patch is only valid for 2.0.2

*** This bug has been marked as a duplicate of bug 211700 ***

Comment 6 Eclipse Webmaster

2022-06-09 10:06:19 EDT

The Eclipselink project has moved to Github: https://github.com/eclipse-ee4j/eclipselink