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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi,</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I am using JBoss Rules 4.0.0.11754MR2 in
an RAD 7.0 (Eclipse 3.2) environment.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Cannot make it work, even examples…</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Here is a message produces on all rules:</span></font><font
size=2 color=red face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:red'> The rule called </span></font><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'><here goes rule name></span></font><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'> is not valid. Check for compile errors reported.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Here is a full stack trace:</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'>Exception in thread "main" </span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>java.lang.IllegalArgumentException</span></font></u><font size=2
color=red face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'>: The rule called Hello World is not valid. Check for compile errors
reported.</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'> at
org.drools.common.AbstractRuleBase.addRule(</span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>AbstractRuleBase.java:363</span></font></u><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'>)</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'> at
org.drools.reteoo.ReteooRuleBase.addRule(</span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>ReteooRuleBase.java:263</span></font></u><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'>)</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'> at
org.drools.common.AbstractRuleBase.addPackage(</span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>AbstractRuleBase.java:293</span></font></u><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'>)</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'> at
org.drools.examples.HelloWorldExample.readRule(</span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>HelloWorldExample.java:72</span></font></u><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'>)</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'> at
org.drools.examples.HelloWorldExample.main(</span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>HelloWorldExample.java:21</span></font></u><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'>)</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>After digging it further I found that in
Rule class method isValid is being called defiend as followes:</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> </span></font><b><font size=2 color="#7f0055"
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055;font-weight:bold'>public</span></font></b><font size=2
color=black face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> </span></font><b><font size=2 color="#7f0055" face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055;font-weight:
bold'>boolean</span></font></b><font size=2 color=black face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:black'> <span
style='background:silver'>isValid</span>() {</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> </span></font><b><font
size=2 color="#7f0055" face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:#7F0055;font-weight:bold'>if</span></font></b><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> ( </span></font><b><font size=2 color="#7f0055"
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055;font-weight:bold'>this</span></font></b><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'>.</span></font><font size=2 color="#0000c0" face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:#0000C0'>consequence</span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> == </span></font><b><font size=2 color="#7f0055"
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055;font-weight:bold'>null</span></font></b><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> || !isSemanticallyValid() ) {</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'>
</span></font><b><font size=2 color="#7f0055" face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055;font-weight:
bold'>return</span></font></b><font size=2 color=black face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:black'> </span></font><b><font
size=2 color="#7f0055" face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:#7F0055;font-weight:bold'>false</span></font></b><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'>;</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> }</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> </span></font><b><font
size=2 color="#7f0055" face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:#7F0055;font-weight:bold'>return</span></font></b><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> </span></font><b><font size=2 color="#7f0055"
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055;font-weight:bold'>true</span></font></b><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'>;</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> }</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The debugger shows that </span></font><b><font
size=2 color="#7f0055" face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:#7F0055;font-weight:bold'>this</span></font></b><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'>.</span></font><font size=2 color="#0000c0"
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:#0000C0'>consequence </span></font><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>is null always! So rules
are always not valid.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Anyone saw this problem? Any idea how to
resolve it?</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks a lot!</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>-Sergey</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
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