CDV ❯ Locking error in sub-class of Thread - com.tc.util.TCAssertionError: object was not null

• Type: Bug
• Status: Closed
• Priority: 3 Minor
• Resolution: Duplicate
• Component/s:
• Labels:

• Assignee: interfaces
• Reporter: pwujek
• Created: May 07, 2009
• Votes: 0
• Watchers: 1
• Updated:

  December 16, 2011
• Resolved:

  June 03, 2009

Description

A class which extends java.lang.Thread encountered an assertion error when trying to access an instance of LinkedBlockingQueue.

The error message “com.tc.util.TCAssertionError: object was not null” is no help in determining the source of the error.

The work-around for the problem is to not extend Thread, but instead to implement Runnable, please see the discussion thread:

http://forums.terracotta.org/forums/posts/list/2116.page

Comments

Fiona OShea 2009-05-11

a nicer error message would be helpful. See forum thread for details

Chris Dennis 2009-05-11

This is a clone of CDV-1262 with a different proposed action. Once CDV-1262 is fixed this should not be a problem when overriding the thread class.

Chris Dennis 2009-06-03

Walter has fixed this in CDV-1262, and has also filed DOC-614 for the documentation issue regarding the results of overriding the getId method of Thread.