Problem with JPA session persistence in Drools Flow (5.0.1)
by Alan.Gairey＠tessella.com
I'm currently using Drools Flow with JPA session persistence enabled as
described in section 5.1 of the User Guide.
As a process executes, session information is saved to the H2 database
correctly.
The problem comes if a process only executes part way through, and I then
try to finish the process by recreating a session using the code:
// recreate the session from database using the sessionId
ksession = JPAKnowledgeService.loadStatefulKnowledgeSession( sessionId,
kbase, null, env );
This gives me a NullPointerException.
Having looked into the Drools Flow source code, I think the problem is in
the class
drools-persistence-jpa\src\main\java\org\drools\persistence\session\SingleSessionCommandService.java.
The 4th constructor of this class is called as part of the loading of a
knowledge session from the H2 database; this in turn leads to the
afterCompletion method of the inner class SynchronizationImpl being
called. The final two lines of this method are:
((JPAProcessInstanceManager) ((ReteooWorkingMemory)
session).getProcessInstanceManager()).clearProcessInstances();
((JPAWorkItemManager) ((ReteooWorkingMemory)
session).getWorkItemManager()).clearWorkItems();
However, when called via the route described above, the session member
variable of SingleSessionCommandService has not been set, thus causing the
NullPointerException.
(Interestingly, running the unit tests for drools-persistence-jpa does
result in the NullPointerException being thrown multiple times, although
the tests are still listed as having passed.)
I believe enclosing the above two lines as follows will fix the problem:
if (session != null) {
((JPAProcessInstanceManager) ((ReteooWorkingMemory)
session).getProcessInstanceManager()).clearProcessInstances();
((JPAWorkItemManager) ((ReteooWorkingMemory)
session).getWorkItemManager()).clearWorkItems();
}
Also, in the 4th constructor of SingleSessionCommandService, after the
session has been set, the following line needs to be added to ensure the
session id is the same as the session info id:
((ReteooStatefulSession) this.session).setId( this.sessionInfo.getId() );
(This line is present at the end of the 3rd constructor.)
It would be great if this fix could make it into the Drools 5.1 release.
Thanks.
16 years, 9 months
Getting the return from a funcion
by Leandro Carvalho
Hi! I'm new here and a have a doubt about rules and functions in Drools.
I have this rule:
rule "ProductDescription validation"
when
$listing : Listing( $description:productDescription != null )
eval( $description.getTitle() != null )
eval( hasForbiddenWordsSet( wordsSet, $description.getTitle() ) )
then
System.out.println("ERROR!");
end
And this function:
function boolean hasForbiddenWordsSet(Set wordsSet, String value) {
#do something useful here
}
And everything works fine. But now I want that function
"hasForbiddenWordsSet" return a String. For example to print at "then".
I tried something like this:
rule "ProductDescription validation"
when
$listing : Listing( $description:productDescription != null )
eval( $description.getTitle() != null )
$word : hasForbiddenWordsSet( wordsSet, $description.getTitle() )
then
System.out.println("ERROR: " + word);
end
function String hasForbiddenWordsSet(Set wordsSet, String value) {
#do something useful here
}
But it doesn't work, tried some other things and still no success.
Could someone help me?
Thanks in advance.
--
Leandro Carvalho
16 years, 9 months
Using Drools for modeling with rule-driven agents
by Russ Abbott
Hi,
I'm interested in developing (if it doesn't already exist) and then using a
framework for agent-based modeling in which the agents are rule driven. An
important feature is that the agents and their rules must be dyanically
manipulable. That is, both the agents and the rules must be first class
objects that can be manipulated as the system is running. Can Drools support
that?
As someone not familiar with Drools I did my best to find out by looking at
the Drools Expert User's
Manual<http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/tr...>.
>From what I could tell, the Template
feature<http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/tr...>in
which one uses Java objects as Template data sources comes close. I'd
like your advice before putting too much development effort into attempting
to use it for that purpose.
In particular, would it be possible to set up a mechanism that could: create
and delete agents on the fly; associate rule sets with agents on the fly;
and modify the rules associated with an agent on the fly? After each such
action the system would change to reflect the change in agents and rules.
Thanks for your help.
-- Russ Abbott
P.S. If Drools would not be a good choice, is there some other system that
you could recommend?
16 years, 9 months
Re: [rules-users] (no subject)
by Garner, Shawn
Functions on the LHS are not advised and says so in the drools user guide.
I can think of two ways to do this (forgive me if my syntax is slightly off).
Way number 1
rule "ProductDescription validation"
when
$listing : Listing( $description:productDescription != null, description.title != null )
then
ListingScrubber listingScrubber = new ListingScrubber(listing);
insert(listingScrubber);
end
rule "ProductDescription validation Part 2"
when
$listingScrubber : ListingScrubber(forbiddenWordInTitle == true , $title: productDescription.title)
then
String word = $listingScrubber.getWord();
System.out.println("ERROR: " + word);
end
Way number2
rule "ProductDescription validation"
when
$listing : Listing( $description:productDescription != null, $title : productDescription.title != null)
then
List<ListingWord> listingWordList = listing.getListingWords();
Iterator<ListingWord> listingWordListIter = listingWordList.iterator();
while(listingWordListIter.hasNext())
{
ListingWord listingWord = listingWordListIter.next();
assert(listingWord);
}
end
$word : hasForbiddenWordsSet( wordsSet, $description.getTitle() )
rule "ProductDescription validation Part 2"
when
$badWordList : BadWordList($wordList : list)
$listingWord : ListingWord($word : word memberof $wordList, $listing : listing)
then
System.out.println($listing.productDescription + " has naughty word:" + $word);
End
>>> Original Message>>
Hi! I'm new here and a have a doubt about rules and functions in Drools.
I have this rule:
rule "ProductDescription validation"
when
$listing : Listing( $description:productDescription != null )
eval( $description.getTitle() != null )
eval( hasForbiddenWordsSet( wordsSet, $description.getTitle() ) )
then
System.out.println("ERROR!");
end
And this function:
function boolean hasForbiddenWordsSet(Set wordsSet, String value) { #do something useful here }
And everything works fine. But now I want that function "hasForbiddenWordsSet" return a String. For example to print at "then".
I tried something like this:
rule "ProductDescription validation"
when
$listing : Listing( $description:productDescription != null )
eval( $description.getTitle() != null )
$word : hasForbiddenWordsSet( wordsSet, $description.getTitle() )
then
System.out.println("ERROR: " + word); end
function String hasForbiddenWordsSet(Set wordsSet, String value) { #do something useful here }
But it doesn't work, tried some other things and still no success.
Could someone help me?
Thanks in advance.
--
Leandro Carvalho
16 years, 9 months
Drools running in OSGi
by diego.vera＠capgemini-sdm.com
Hi all,
I am trying to run Drools as a bundle with Equinox, however I found an issue with Drools 5 with the classloader, apparently Drools 5 does not always uses the classloader that I pass in the configuration (PackageBuilderConfiguration). Then I decided to test it with Drools 4.0.7 and I do not have the classloader problem anymore but I got the following error (NoSuchMethodError) when I execute stateFulSession.fireAllRules, below is the stack.
I am trying to run it with Equinox 3.4 and I reviewed that all the dependencies are ok. The .drl file is compiled successfully, see the code that I am using below.
I followed the sample publishe in: http://www.dynamicjava.org/articles/osgi-integration/drools-osgi
And I tried with the bundles published by spring and I also tried with my own sample but I get the same error.
Does anybody used successfully Drools 4.0.7 or 5 in OSGi successfully? What should I change to have my code running in OSGi?
Thanks in advance,
The Code:
InputStreamReader source = new InputStreamReader( this.getClass.getResourceAsStream( "helloWorld.drl" ) );
OsgiEnvironmentClassLoader classLoader =
new OsgiEnvironmentClassLoader(bundleContext,
Thread.currentThread().getContextClassLoader(),
bundleContext.getBundle());
PackageBuilderConfig packageBuilderConfig = new PackageBuilderConfiguration(classLoader, null);
PackageBuilder builder = new PackageBuilder(packageBuilderConfig);
//this wil parse and compile in one step
builder.addPackageFromDrl( source );
// Check the builder for errors
if ( builder.hasErrors() ) {
System.out.println( builder.getErrors().toString() );
throw new RuntimeException( "Unable to compile \"helloWorld.drl\".");
}
//get the compiled package (which is serializable)
Package pkg = builder.getPackage();
Package ruleBaseConfig = new RuleBaseConfiguration()
ruleBaseConfig.setClassLoader(classLoader);
//add the package to a rulebase (deploy the rule package).
RuleBase ruleBase = RuleBaseFactory.newRuleBase(ruleBaseConfig);
ruleBase.addPackage( pkg );
StateFulSession session = ruleBase.newStatefulSession();
session.fireAllRules();
The Exception:
INFO: bundle changed: TopicMapEditorService
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActiv
ator(BundleContextImpl.java:1028)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(Bund
leContextImpl.java:984)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(Bundl
eHost.java:344)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(Abstrac
tBundle.java:267)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(Abstrac
tBundle.java:259)
at org.eclipse.osgi.framework.internal.core.FrameworkCommandProvider._st
art(FrameworkCommandProvider.java:254)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.osgi.framework.internal.core.FrameworkCommandInterpreter.
execute(FrameworkCommandInterpreter.java:150)
at org.eclipse.osgi.framework.internal.core.FrameworkConsole.docommand(F
rameworkConsole.java:302)
at org.eclipse.osgi.framework.internal.core.FrameworkConsole.console(Fra
meworkConsole.java:287)
at org.eclipse.osgi.framework.internal.core.FrameworkConsole.run(Framewo
rkConsole.java:223)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoSuchMethodError: org.drools.WorkingMemory.fireAllRules()I
at org.topicology.security.TSecurity.initialize(TSecurity.scala:49)
at org.topicology.TMEditorService.Activator.start(Activator.scala:28)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(Bund
leContextImpl.java:1009)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActiv
ator(BundleContextImpl.java:1003)
... 14 more
Nested Exception:
java.lang.NoSuchMethodError: org.drools.WorkingMemory.fireAllRules()I
at org.topicology.security.TSecurity.initialize(TSecurity.scala:49)
at org.topicology.TMEditorService.Activator.start(Activator.scala:28)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(Bund
leContextImpl.java:1009)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActiv
ator(BundleContextImpl.java:1003)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(Bund
leContextImpl.java:984)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(Bundl
eHost.java:344)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(Abstrac
tBundle.java:267)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(Abstrac
tBundle.java:259)
at org.eclipse.osgi.framework.internal.core.FrameworkCommandProvider._st
art(FrameworkCommandProvider.java:254)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.osgi.framework.internal.core.FrameworkCommandInterpreter.
execute(FrameworkCommandInterpreter.java:150)
at org.eclipse.osgi.framework.internal.core.FrameworkConsole.docommand(F
rameworkConsole.java:302)
at org.eclipse.osgi.framework.internal.core.FrameworkConsole.console(Fra
meworkConsole.java:287)
at org.eclipse.osgi.framework.internal.core.FrameworkConsole.run(Framewo
rkConsole.java:223)
at java.lang.Thread.run(Unknown Source)
Nested Exception:
java.lang.NoSuchMethodError: org.drools.WorkingMemory.fireAllRules()I
at org.topicology.security.TSecurity.initialize(TSecurity.scala:49)
at org.topicology.TMEditorService.Activator.start(Activator.scala:28)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(Bund
leContextImpl.java:1009)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActiv
ator(BundleContextImpl.java:1003)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(Bund
leContextImpl.java:984)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(Bundl
eHost.java:344)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(Abstrac
tBundle.java:267)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(Abstrac
tBundle.java:259)
at org.eclipse.osgi.framework.internal.core.FrameworkCommandProvider._st
art(FrameworkCommandProvider.java:254)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.osgi.framework.internal.core.FrameworkCommandInterpreter.
execute(FrameworkCommandInterpreter.java:150)
at org.eclipse.osgi.framework.internal.core.FrameworkConsole.docommand(F
rameworkConsole.java:302)
at org.eclipse.osgi.framework.internal.core.FrameworkConsole.console(Fra
meworkConsole.java:287)
at org.eclipse.osgi.framework.internal.core.FrameworkConsole.run(Framewo
rkConsole.java:223)
at java.lang.Thread.run(Unknown Source)
16 years, 9 months
Maven Plugin to build pkg files
by Bernd Rücker
Hi all.
I wonder if there exists a maven plugin to build pkg files out of the rule
base during the maven packaging. Because we dont use the Guvnor
repository in this project and I want to package the pkg files with the
overall ear.
I searched a bit, but didnt found anything
Okay, not hard to write
ourself, but would be nicer to reuse existing stuff
Thanks
Bernd
16 years, 9 months
More knowledge bases in application - Performance Hit ?
by Kumar Mynam
Hello All,
Does KnowledgeBase has lot of overhead in it..?
Would there be a performance hit on an application if it has 200 different KnowledgeBases, because of the size of the KnowledgeBase, overhead storage of the KnowledgeBase object or for any other reason..?
Ofcourse, Application would only build KnowledgeBases once at the startup of the application, stores them, and uses them for rest of the life.
Thank you,
kumar.
16 years, 9 months
Running drools 4 code using drools 5 jars
by Nikhil D. Deshpande
Hi,
I have written some code using drools 4 jars.
Now as drools 5 is launched, I want to migrate my existing 'RuleBase' (drools 4) to 'KnowledgeBase'(drools 5).
1. Can I/Should I use RuleBase, PackageBuilder, ExternalSpreadSheetCompiler using drools 5 jars??
I can use these classes as they are present in drools-compiler-5.0.1.jar
Is anybody facing the same issue?
Please let me know if somebody has a solution for this.
Thanks & Regards,
Nikhil
MASTEK LTD.
Mastek is in NASSCOM's 'India Top 20' Software Service Exporters List.
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16 years, 9 months
Rule-base doubt
by ganesh ezhilarasu
Hi am using drools -guvnor. i need to help
Now the rules are created and persistence in reposity path. i need
persistence to data base what i have need to do?
when i create rule in my setting path .How to move the file in user
environment ?
one more am persistence rule in database. How to move user environment.
Any body help me
--
Regards
Ganesh.E
9790723660
16 years, 9 months
Confusing behavior for StatefulKnowledgeSession.fireAllRules() with negated conditions.
by bill simms
Hello again,
Recently while continuing to work on a complex event processing project I
have encountered strange,
but interesting, situations where the fireAllRules() method of a
StatefulKnowledgeSession appears to
return before actually emptying the activations on the agenda. I was under
the impression that this
method only returns after all activations, including subsequent activations,
have been completed and
removed from the agenda. If I'm incorrect then feel free to disregard the
rest of this message.
[Drools v 5.0.1, JUnit 4.0, Spring 2.5.6]
The behavior I have noticed begins when working with a rule such as "Find
Missing Input Events"
(in file test.drl):
------------------------------------------------------------------------
package org.drools.test
import org.drools.test.*
declare Event
@role( event )
@timestamp( beginning )
@duration( length )
@expires( 1h )
end
declare Fault
@role( event )
@timestamp( beginning )
@duration( length )
@expires( 1h )
end
query "getFaults"
$fault: Fault() from entry-point "faults"
end
rule "Find Missing Input Events"
when
$a: Event()
from entry-point "input"
$b: Event( this after $a)
from entry-point "input"
not (Event( (this after $a || this metby $a), (this before $b ||
this meets $b))
from entry-point "input")
not (Fault(this metby $a, this meets $b)
from entry-point "faults")
then
entryPoints["faults"].insert(new Fault($a, $b));
end
rule "Print Faults"
when
$f: Fault() from entry-point "faults"
then
System.out.println($f);
end
------------------------------------------------------------------------
The purpose of this rule is to detect when one or more events are missing in
an event sequence. The
events in question are supposed to continue from one to the next without any
time in-between. If this
rule does discover a gap/absence between two events a Fault is created for
further processing. (*Note
that the Event and Fault classes that I used only contain two fields,
beginning and length, to be used as
the time-stamp and duration respectively.) I noticed the unexpected
behavior shortly after creating this
unit test:
------------------------------------------------------------------------
public class FireAllRulesTest {
KnowledgeBase knowledgeBase;
StatefulKnowledgeSession session;
/**
* @throws java.lang.Exception
*/
@Before
public void setUp() throws Exception {
KnowledgeBuilder builder =
KnowledgeBuilderFactory.newKnowledgeBuilder();
builder.add(ResourceFactory.newFileResource("target/test-classes/test.drl"),
ResourceType.DRL);
if(builder.hasErrors()){
throw new RuntimeException(builder.getErrors().toString());
}
KnowledgeBaseConfiguration configuration =
KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
configuration.setOption(EventProcessingOption.STREAM);
knowledgeBase =
KnowledgeBaseFactory.newKnowledgeBase(configuration);
knowledgeBase.addKnowledgePackages(builder.getKnowledgePackages());
session = knowledgeBase.newStatefulKnowledgeSession();
WorkingMemoryConsoleLogger logger = new
WorkingMemoryConsoleLogger(session);
}
@Test
public void testAbsence(){
System.out.println("Running...");
//Record the rules that have fired.
ActivationTrackingEventListener listener = new
ActivationTrackingEventListener();
session.addEventListener(listener);
//Start at 0, go to 100.
Event first = new Event(0,100);
//Start at 1000, go to 1100. Absence of 900.
Event second = new Event(1000, 100);
//Start at 1100, go to 1200. No absence.
Event third = new Event(1100, 100);
//Start at 1200, go to 1300. No absence.
Event fourth = new Event(1200, 100);
//Start at 2000, go to 2100. Absence of 700.
Event fifth = new Event(2000, 100);
WorkingMemoryEntryPoint ingest =
session.getWorkingMemoryEntryPoint("input");
ingest.insert(first);
ingest.insert(second);
ingest.insert(third);
ingest.insert(fourth);
ingest.insert(fifth);
System.out.println("All events have been inserted.");
session.fireAllRules();
System.out.println("Rules have finished firing.");
//Expect that "Find Missing Input Events" has fired and that there
are two faults as a result.
assertTrue(listener.hasRuleFired("Find Missing Input Events"));
assertEquals(2,faultCount());
System.out.println("Test completed.");
}
public int faultCount(){
QueryResults results = session.getQueryResults("getFaults");
return results.size();
}
}
------------------------------------------------------------------------
The typical result of this test is a failure about 90% of the time.
Strangely, the other 10% of the time this exact
same test is run it will pass, without any modifications. Equally
interesting is the output of the WorkingMemoryLogger:
------------------------------------------------------------------------
Running...
OBJECT ASSERTED value:org.drools.test.Event@1b994de factId: 1
BEFORE ACTIVATION FIRED rule:Find Missing Input Events activationId:Find
Missing Input Events [2, 1, 0]
declarations: $b=org.drools.test.Event@2803d5(2);
$a=org.drools.test.Event@1b994de(1)
ACTIVATION CREATED rule:Find Missing Input Events activationId:Find Missing
Input Events [2, 1, 0]
declarations: $b=org.drools.test.Event@2803d5(2);
$a=org.drools.test.Event@1b994de(1)
OBJECT ASSERTED value:org.drools.test.Event@2803d5 factId: 2
OBJECT ASSERTED value:org.drools.test.Event@1b32627 factId: 3
OBJECT ASSERTED value:org.drools.test.Event@ad157f factId: 4
ACTIVATION CREATED rule:Find Missing Input Events activationId:Find Missing
Input Events [5, 4, 0]
declarations: $b=org.drools.test.Event@1bfa3d3(5);
$a=org.drools.test.Event@ad157f(4)
OBJECT ASSERTED value:org.drools.test.Event@1bfa3d3 factId: 5
All events have been inserted.
***Rules have finished firing.
ACTIVATION CREATED rule:Print Faults activationId:Print Faults [6, 0]
declarations: $f=org.drools.test.Fault@159780d(6)
OBJECT ASSERTED value:org.drools.test.Fault@159780d factId: 6
AFTER ACTIVATION FIRED rule:Find Missing Input Events activationId:Find
Missing Input Events [2, 1, 0]
declarations: $b=org.drools.test.Event@2803d5(2);
$a=org.drools.test.Event@1b994de(1)
BEFORE ACTIVATION FIRED rule:Print Faults activationId:Print Faults [6, 0]
declarations: $f=org.drools.test.Fault@159780d(6)
org.drools.test.Fault@159780d
AFTER ACTIVATION FIRED rule:Print Faults activationId:Print Faults [6, 0]
declarations: $f=org.drools.test.Fault@159780d(6)
BEFORE ACTIVATION FIRED rule:Find Missing Input Events activationId:Find
Missing Input Events [5, 4, 0]
declarations: $b=org.drools.test.Event@1bfa3d3(5);
$a=org.drools.test.Event@ad157f(4)
ACTIVATION CREATED rule:Print Faults activationId:Print Faults [7, 0]
declarations: $f=org.drools.test.Fault@c26b16(7)
OBJECT ASSERTED value:org.drools.test.Fault@c26b16 factId: 7
AFTER ACTIVATION FIRED rule:Find Missing Input Events activationId:Find
Missing Input Events [5, 4, 0]
declarations: $b=org.drools.test.Event@1bfa3d3(5);
$a=org.drools.test.Event@ad157f(4)
BEFORE ACTIVATION FIRED rule:Print Faults activationId:Print Faults [7, 0]
declarations: $f=org.drools.test.Fault@c26b16(7)
org.drools.test.Fault@c26b16
AFTER ACTIVATION FIRED rule:Print Faults activationId:Print Faults [7, 0]
declarations: $f=org.drools.test.Fault@c26b16(7)
------------------------------------------------------------------------
It seems that the rule is indeed firing correctly, but that it is doing so
only after returning from fireAllRules method.
I have marked line that follows fireAllRules() with *** above. So the rule
fires, but the test fails because the firing
takes place after the junit assertions are checked.
But that's not all, it gets more interesting. Looking back at the rule
file, when you comment out the last condition:
not (Fault(this metby $a, this meets $b)
from entry-point "faults")
The problem with the unit test disappears. After much thought I'm still not
sure why this is, but the last condition is
critical to avoid creating redundant Faults (Because a lot of the Events are
redundant as well. It just comes with the
problem being solved). The problem also disappears if you put a
Thread.sleep(1000) after firing the rules, which is
why I suspect a timing issue between the rules firing and the unit test
assertions being evaluated. This could explain
why the test sometimes works, and sometimes doesn't.
I'm hopeful that someone will understand why this is happening, and point
how how to prevent it. Thank you in advance.
Bill
16 years, 9 months
