Yes, that's what I mean, mutable Java objects in your slots. If that's not the 
problem, then a bug is a possibility. Can you provide me a 
SSCCE<http://sscce.org/> that displays the error? (Off-list)

From: owner-jess-us...@sandia.gov [mailto:owner-jess-us...@sandia.gov] On 
Behalf Of Dwight Hare
Sent: Thursday, May 30, 2013 1:00 PM
To: jess-users
Subject: RE: JESS: [EXTERNAL] Corrupted Negcnt Error

By "indexed field" do you mean slot values? I don't use any Java objects other 
than simple primitives (Integer, Float, Boolean, String). I've looked at all my 
calls to the Value constructor.

Dwight

From: owner-jess-us...@sandia.gov<mailto:owner-jess-us...@sandia.gov> 
[mailto:owner-jess-us...@sandia.gov] On Behalf Of Friedman-Hill, Ernest
Sent: Thursday, May 30, 2013 7:36 AM
To: jess-users
Subject: RE: JESS: [EXTERNAL] Corrupted Negcnt Error

It's an internal consistency check. Usually it means that a non-value class (a 
class whose identity, defined by hashCode()/equals(), changes during a run) is 
being used in an indexed field. Look at this section of the manual and see if 
you can use it to fix the problem:

http://www.jessrules.com/jess/docs/71/functions.html#set-value-class

In the past, very rarely, this message indicated a bug in Jess. I don't think 
this will be the case here - I think any bugs that trigger this assert were 
found and fixed long ago.


From: owner-jess-us...@sandia.gov<mailto:owner-jess-us...@sandia.gov> 
[mailto:owner-jess-us...@sandia.gov] On Behalf Of Dwight Hare
Sent: Wednesday, May 29, 2013 5:05 PM
To: jess-users
Subject: JESS: [EXTERNAL] Corrupted Negcnt Error

During a run I started getting the error

Jess reported an error in routine NodeNot2.tokenMatchesRight
        while executing rule LHS (Node2)
        while executing rule LHS (TECT).
  Message: Corrupted Negcnt (< 0) .

Any idea what this means?

Dwight

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