[jboss-jira] [JBoss JIRA] Created: (JBRULES-2223) ArrayIndexOutOfBoundsException in AbstractRuleBase.getStatefulSessions()
ArrayIndexOutOfBoundsException in AbstractRuleBase.getStatefulSessions()
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Key: JBRULES-2223
URL: https://jira.jboss.org/jira/browse/JBRULES-2223
Project: JBoss Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Affects Versions: 4.0.7
Reporter: Assen Todorov
Assignee: Mark Proctor
The following exception is thrown on a multithreaded application, based on Terracotta
& JBoss Drools (4.0.7).
{code}
java.lang.ArrayIndexOutOfBoundsException: 0
at org.drools.util.ObjectHashSet.toArray(ObjectHashSet.java:152)
at
org.drools.common.AbstractRuleBase.getStatefulSessions(AbstractRuleBase.java:724)
.......
{code}
The code :
{code}
/**
* Creates a new rule base if necesarry.
* @param aRuleSet the rule set for the new rule base.
* @throws RuleConversionException if the rule engine has a problem with rule set
compilation and loading.
*/
private void createRuleBase(final RuleSet aRuleSet) throws RuleConversionException
{
Check.notNull(aRuleSet, "aRuleSet");
final String code = aRuleSet.getCode();
Check.notNull(code, "aRuleSet.getCode()");
Check.notEmpty(code, "aRuleSet.getCode()");
final ECRC ecrc = new ECRC();
ecrc.update(code);
final long crc = ecrc.getValue();
synchronized(ruleBaseCache)
{
ruleBase = ruleBaseCache.get(crc);
if(ruleBase == null)
{
ruleBase = loadRuleBaseFromCode(code);
ruleBaseCache.put(crc, ruleBase);
}
else {
// rulebase already exist
final StatefulSession[] sessions = ruleBase.getStatefulSessions();
if(sessions.length > 0) {
// old sessions (working memories exist)
for(StatefulSession session: sessions) {
// clear the working memory
session.dispose();
}
}
}
}
}
{code}
The class where this method is defined, is declared as _instrumented-classes_ in the
Terracotta configuration.
Hope this helps !
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