[jboss-jira] [JBoss JIRA] Closed: (JBRULES-1053) Import collision when static inner classes of 2 different classes have same name

[Fernando Meyer (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBRULES-1053?page=all ]

Fernando Meyer closed JBRULES-1053.
-----------------------------------

    Resolution: Won't Fix

Hi Eric, after some tests I noticed that in java language you can't import the same class name twice even if the class is defined in different packages, ie try creating a java file and import both import java.awt.List; import java.util.List; It won't work, you will get a similar error from javac compiler

So you can try using two package builders as I did in the following example 

    public void testImportColision () throws Exception  { 
        final PackageBuilder builder = new PackageBuilder();
        final PackageBuilder builder2 = new PackageBuilder();
        builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "nested1.drl" ) ) );
        builder2.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "nested2.drl" ) ) );
        final Package pkg = builder.getPackage();
        final Package pkg2 = builder2.getPackage();
 
        final RuleBase ruleBase = getRuleBase();
        ruleBase.addPackage( pkg );
        ruleBase.addPackage( pkg2 );
 
 
        final WorkingMemory workingMemory = ruleBase.newStatefulSession();
 
        workingMemory.insert( new FirstClass() );
        workingMemory.insert( new SecondClass() );
        workingMemory.insert( new FirstClass.AlternativeKey() );
        workingMemory.insert( new SecondClass.AlternativeKey() );
 
        workingMemory.fireAllRules();
    }

> Import collision when static inner classes of 2 different classes have same name
> --------------------------------------------------------------------------------
>
>                 Key: JBRULES-1053
>                 URL: http://jira.jboss.com/jira/browse/JBRULES-1053
>             Project: JBoss Rules
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Drl Parser/Builder
>    Affects Versions:  4.0.0.GA
>         Environment: Fedora 7, JSE 1.5.0_12, Eclipse 3.3
>            Reporter: Eric Miles
>         Assigned To: Fernando Meyer
>             Fix For: 4.0.1
>
>         Attachments: drools-import-collision-test.tar.gz
>
>
> I have 2 drl files, each that deals with a particular class (FirstClass and SecondClass).  Both of these class have public static inner classes with the same name (AlternativeKey).  When attempting to compile these 2 DRL files together, I get an import collision error.  I am attaching a test case that is a maven and Eclipse project.  There is a junit test case written to show what happens.

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