Hello,

Suppose I have a drl file(s) that defines a rules package. I have loaded this into the rule base. At runtime however, my user may change the file(s) that defines the package. Do I need to call RuleBase.removePackage () before adding the newly modified drl code? Or will the rule base automatically update all the modified rules correctly?

When I call removePackage, I get the following exception, but I'm not sure why...

Warning: An error occurred compiling a semantic invoker. Errors should have been reported elsewhere.
Exception in thread "main" java.lang.NullPointerException
    at org.drools.reteoo.ReteooBuilder.removeRule (Unknown Source)
    at org.drools.reteoo.ReteooRuleBase.removeRule(Unknown Source)
    at org.drools.common.AbstractRuleBase.removePackage(Unknown Source)
    at com.vsasset.rules.dynamic.RemovePkgTestCase.replaceRuleFile (RemovePkgTestCase.java:58)
    at com.vsasset.rules.dynamic.RemovePkgTestCase.testLoad1AssertLoad2(RemovePkgTestCase.java:38)
    at com.vsasset.rules.dynamic.RemovePkgTestCase.main(RemovePkgTestCase.java:23)
    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 com.intellij.rt.execution.application.AppMain.main(AppMain.java:90)

Process finished with exit code 1

Thanks!
Justine