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Not sure if this is related to Drools use of MVEL or MVEl itself...

I have 2 classes:

public abstract class AbstractBase<T> {
protected T foo;
public T getFoo()

{ return foo; }

}

public class StringConcrete extends AbstractBase<String> {
public StringConcrete()

{ this.foo = new String(); }

}

The following rule fails in MVEL dialect, but passes in Java dialect.

rule "test"
dialect "mvel"
when
$S : StringConcrete()
then
System.out.println( $S.getFoo().concat("this works with java dialect") );
end

MVEL is having issues resolving a generic member in a concrete type