<br>&nbsp;&nbsp; Krishnan,<br><br>&nbsp;&nbsp; May I ask you please to open a JIRA and attach your examples bellow? It seems to be a bug...<br>&nbsp;&nbsp; As a workaround, while we fix it, use primitive booleans and it shall work...<br><br>&nbsp;&nbsp;&nbsp; []s<br>
&nbsp;&nbsp;&nbsp; Edson<br><br><div><span class="gmail_quote">2007/5/21, Krishnan &lt;<a href="mailto:krishiyer@gmail.com">krishiyer@gmail.com</a>&gt;:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>Hi All, <br><br>I am using the 4.0.M2 version of jboss rules. <br><br>public class Device() { <br><br>private Boolean isCiscoVersion;<br>private Boolean sysNamePresent;<br>private Boolean isPixVersion;<br><br>}<br><br>

When I write the rule as follows :- <br clear="all"><br>rule &quot;Cisco PIX Device&quot; <br><br>&nbsp;&nbsp;&nbsp; when <br>&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; d : Device ( isCiscoVersion == null, <br>&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;sysNamePresent == true, <br>&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;isPixVersion == true )
<br>&nbsp;&nbsp;&nbsp; then <br>&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; System.out.println(&quot;This is a cisco pix device.&quot;);<br>&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <br>end<br><br>The rule works. However, when I write the same rule as <br><br>rule &quot;Cisco PIX Device&quot; <br><br>&nbsp;&nbsp;&nbsp; when 
<br>&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; d : Device ( isCiscoVersion == false, <br>&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;sysNamePresent == true, <br>&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;isPixVersion == true )<br>&nbsp;&nbsp;&nbsp; then <br>&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; System.out.println(&quot;This is a cisco pix device.&quot;);
<br>&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <br>end<br><br>It even fails to compile and add the rule into the package. Not sure what is going on ?. <br><br>Following is the error I keep getting :- <br><br>java.lang.NullPointerException<br>&nbsp;&nbsp;&nbsp; at org.drools.reteoo.CompositeObjectSinkAdapter$HashKey.setValue

(CompositeObjectSinkAdapter.java:501)<br>&nbsp;&nbsp;&nbsp; at org.drools.reteoo.CompositeObjectSinkAdapter$HashKey.&lt;init&gt;(CompositeObjectSinkAdapter.java:441)<br>&nbsp;&nbsp;&nbsp; at org.drools.reteoo.CompositeObjectSinkAdapter.hashSinks(CompositeObjectSinkAdapter.java

:158)<br>&nbsp;&nbsp;&nbsp; at org.drools.reteoo.CompositeObjectSinkAdapter.addObjectSink(CompositeObjectSinkAdapter.java:72)<br>&nbsp;&nbsp;&nbsp; at org.drools.reteoo.ObjectSource.addObjectSink(ObjectSource.java:104)<br>&nbsp;&nbsp;&nbsp; at org.drools.reteoo.ObjectTypeNode.addObjectSink

(ObjectTypeNode.java:313)<br>&nbsp;&nbsp;&nbsp; at org.drools.reteoo.AlphaNode.attach(AlphaNode.java:116)<br>&nbsp;&nbsp;&nbsp; at org.drools.reteoo.builder.BuildUtils.attachNode(BuildUtils.java:129)<br>&nbsp;&nbsp;&nbsp; at org.drools.reteoo.builder.PatternBuilder.attachAlphaNodes

(PatternBuilder.java:119)<br>&nbsp;&nbsp;&nbsp; at org.drools.reteoo.builder.PatternBuilder.attachPattern(PatternBuilder.java:71)<br>&nbsp;&nbsp;&nbsp; at org.drools.reteoo.builder.PatternBuilder.build(PatternBuilder.java:55)<br>&nbsp;&nbsp;&nbsp; at org.drools.reteoo.builder.GroupElementBuilder$AndBuilder.build

(GroupElementBuilder.java:111)<br>&nbsp;&nbsp;&nbsp; at org.drools.reteoo.builder.GroupElementBuilder.build(GroupElementBuilder.java:69)<br>&nbsp;&nbsp;&nbsp; at org.drools.reteoo.builder.ReteooRuleBuilder.addSubRule(ReteooRuleBuilder.java:143)<br>&nbsp;&nbsp;&nbsp; at 
org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:108)<br>&nbsp;&nbsp;&nbsp; at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:112)<br>&nbsp;&nbsp;&nbsp; at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java

:266)<br>&nbsp;&nbsp;&nbsp; at org.drools.common.AbstractRuleBase.addPackage(AbstractRuleBase.java:293)<br>&nbsp;&nbsp;&nbsp; at com.sample.CfiTest.readRule(CfiTest.java:71)<br>&nbsp;&nbsp;&nbsp; at com.sample.CfiTest.main(CfiTest.java:23)<br><br><br>Any ideas why this is happening ?. 
<br><br>-Krishnan. <br><span class="sg"><br>-- <br>Sivaramakrishna Iyer Krishnan (Anand) <br><br>Never assume the obvious is true. <br>- William Safire
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<br><br clear="all"><br>-- <br>&nbsp;&nbsp;Edson Tirelli<br>&nbsp;&nbsp;Software Engineer - JBoss Rules Core Developer<br>&nbsp;&nbsp;Office: +55 11 3529-6000<br>&nbsp;&nbsp;Mobile: +55 11 9287-5646<br>&nbsp;&nbsp;JBoss, a division of Red Hat @ <a href="http://www.jboss.com">
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