[jboss-jira] [JBoss JIRA] Created: (JBRULES-2147) NullPointerException in org.drools.rule.builder.PatternBuilder.getDeclarationsMap()

[Juergen none (JIRA)]

NullPointerException in org.drools.rule.builder.PatternBuilder.getDeclarationsMap()
-----------------------------------------------------------------------------------

                 Key: JBRULES-2147
                 URL: https://jira.jboss.org/jira/browse/JBRULES-2147
             Project: JBoss Drools
          Issue Type: Feature Request
      Security Level: Public (Everyone can see)
          Components: drools-compiler (expert)
    Affects Versions: 5.0.1.FINAL
         Environment: java 1.5, linux x64, jboss 4.0.5
            Reporter: Juergen none
            Assignee: Mark Proctor


I understand my rules/fact objects might not be proper (still searching), but resulting in a NullPointerException is not proper as well

entry.getValue().getExtractor().getExtractToClass() yields NullPointerException, because entry.getValue().getExtractor() is null

eclipse debug variable:

value	org.drools.rule.Declaration  (id=502)	
	identifier	"schoolForm" (id=501)	
	internalFact	false	
	pattern	org.drools.rule.Pattern  (id=508)	
		behaviors	null	
		constraints	java.util.ArrayList<E>  (id=520)	
		declaration	org.drools.rule.Declaration  (id=521)	
		declarations	java.util.HashMap<K,V>  (id=522)	
		index	1	
		objectType	org.drools.base.ClassObjectType  (id=524)	
		offset	0	
		source	null	
	readAccessor	null	

Stacktrace:
java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
...
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
        at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.NullPointerException
        at org.drools.rule.builder.PatternBuilder.getDeclarationsMap(PatternBuilder.java:641)
        at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:574)
        at org.drools.rule.builder.PatternBuilder.buildConstraint(PatternBuilder.java:244)
        at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:196)
        at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:104)
        at org.drools.rule.builder.GroupElementBuilder.build(GroupElementBuilder.java:69)
        at org.drools.rule.builder.RuleBuilder.build(RuleBuilder.java:68)
        at org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:1159)
        at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:649)
        at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:278)
        at org.drools.jsr94.rules.admin.LocalRuleExecutionSetProviderImpl.createRuleExecutionSet(LocalRuleExecutionSetProviderImpl.java:158)
        at org.drools.jsr94.rules.admin.LocalRuleExecutionSetProviderImpl.createRuleExecutionSet(LocalRuleExecutionSetProviderImpl.java:93)
...


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