On Jul 14, 2014 2:13 PM, "braveheart85" <andrea.pacifico.85@gmail.com> wrote:

Hi Davide,

Thanks for the reply.
Unfortunately I cannot migrate to version 5.6 or newer.
Today I have inspected that part of code, but it is quite huge and complex
in the Reeteo part.
I have seen the NullPointer is due to the "nodes" retrieved from the "rules"
Map (line 250).
Moreover, this non-deterministic behaviour complicates everything.

65     private Map<Rule, BaseNode[]>       rules;

244    public synchronized void More ...removeRule(final Rule rule) {
245        // reset working memories for potential propagation
246        InternalWorkingMemory[] workingMemories =
this.ruleBase.getWorkingMemories();
247
248        final Object object = this.rules.remove( rule );
249
250        final BaseNode[] nodes = (BaseNode[]) object;
251        final RuleRemovalContext context = new RuleRemovalContext( rule
);
252        for (final BaseNode node : nodes) {
253            node.remove( context,
254                         this,
255                         null,
256                         workingMemories );
257        }
258
259        resetMasks(context);
260    }

I don't know if you can help me in some way...
Thanks in all cases.
Andrea



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