[rules-users] Problems with rule builder errors

[Edson Tirelli]

   Dirk,

   Can you please open a JIRA for me? It would be great if you can 
attach a self contained example of the problem. I will look into it and fix.

   Thank you
    Edson

Dirk Bergstrom wrote:

>I'm using trunk (revision 10170), and I'm getting an exception when trying to
>read errors after calling PackageBuilder.addPackageFromDrl(String, Reader).  The
>getErrors() method spits out this exception:
>
>java.lang.ArrayStoreException
>	at java.lang.System.arraycopy(Native Method)
>	at java.util.ArrayList.toArray(ArrayList.java:304)
>	at org.drools.compiler.PackageBuilder.getErrors(PackageBuilder.java:380)
>
>(The docs for toArray say that exception is thrown if one of the members of the
>List is the wrong class for the supplied array.)
>
>If I instead call printErrors, I get something more useful:
>
>java.lang.ClassCastException: org.drools.lang.ExpanderException
>	at org.drools.compiler.PackageBuilder.printErrors(PackageBuilder.java:390)
>
>It looks like someone is putting the wrong kind of exception in the error list.
>
>This may be related to some bugs in DSL handling.  I had to comment out all the
>blank lines in my DSL file to get it to suppress some other errors, and if I
>switch to PackageBuilder.addPackageFromDrl(String), the problem goes away.
>
>  
>


-- 
 Edson Tirelli
 Software Engineer - JBoss Rules Core Developer
 Office: +55 11 3124-6000
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