When an Attribute name collides with the Method name of the BaseBean class (
e.g. Attribute name in dtd = "class"), setters and getters of generated beans
get a numerical value attached (getClass2, setClass2). Fine so far, but when you
try to add those properties, you will get an Exception:

I have created a minimal example. Create the binding classes for this dtd:
8<-----------example dtd----------------->8
<?xml version="1.0" encoding="UTF-8"?>

<!ELEMENT root (parameter)>
<!ATTLIST root version CDATA #REQUIRED>
<!ELEMENT parameter >
<!ATTLIST parameter
	class NMTOKEN "java.lang.String"
>
8<---------------------------->8

This will result in two classes Root and Parameter (I can supply those when
needed, but they are a bit long to paste them here). 


add a simple test.xml file
8<-----------test.xml--------->8
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE Base PUBLIC '//newemptyDTD//DTD Report Design//EN' ''>
<root>
    <parameter class="java.lang.String"/>
</root>
8<---------------------------->8

create Unit Test:
8<---------------------------->8
package test;

import junit.framework.*;
import org.w3c.dom.*;
import org.netbeans.modules.schema2beans.*;
import java.beans.*;
import java.util.*;
import java.io.*;

public class RootTest extends TestCase {
    
    public RootTest(String testName) {
        super(testName);
    }

    public void testSetParameter() {
        System.out.println("setParameter");
        
        Parameter value = null;
        Root instance;
        try {
            instance =
Root.createGraph(Root.class.getClassLoader().getResourceAsStream("test/test.xml"));
            instance.setParameter((Parameter) instance.getParameter().clone());
        } catch (Schema2BeansException ex) {
            ex.printStackTrace();
        }
    }
}

8<---------------------------->8


expected behaviour:
Test runs through without errors

observed Behaviour:
Test fails with this stacktrace:
8<-------------------------------------------------------->8

------------- Standard Output ---------------
setParameter
------------- ---------------- ---------------
Testcase: testSetParameter(test.RootTest):	Caused an ERROR
Unknown attribute Class2 for property Parameter
java.lang.IllegalArgumentException: Unknown attribute Class2 for property Parameter
        at
org.netbeans.modules.schema2beans.BeanProp.getAttrProp(BeanProp.java:1225)
        at
org.netbeans.modules.schema2beans.BeanProp.getAttrProp(BeanProp.java:1236)
        at
org.netbeans.modules.schema2beans.BeanProp.setAttributeValue(BeanProp.java:1243)
        at org.netbeans.modules.schema2beans.BeanProp.setElement(BeanProp.java:1054)
        at org.netbeans.modules.schema2beans.BeanProp.setValue(BeanProp.java:787)
        at org.netbeans.modules.schema2beans.BaseBean.setValue(BaseBean.java:444)
        at org.netbeans.modules.schema2beans.BaseBean.setValue(BaseBean.java:433)
        at test.Root.setParameter(Root.java:107)
        at test.RootTest.testSetParameter(RootTest.java:35)


Test test.RootTest FAILED
C:\Documents and
Settings\Administrator\netbeans_projects\JavaLibrary4\nbproject\build-impl.xml:475:
Some tests failed; see details above.
BUILD FAILED (total time: 0 seconds)
8<-------------------------------------------------------->8

Hints:
If you change the Attribute creation in Root, it works:
8<----------------------Fails---------------------------------->8
this.createAttribute(PARAMETER, "class", "Class", 
						AttrProp.NMTOKEN,
						null, "java.lang.String");
8<-------------------------------------------------------->8

8<----------------------Passes---------------------------------->8
this.createAttribute(PARAMETER, "class", "Class2", 
						AttrProp.NMTOKEN,
						null, "java.lang.String");
8<-------------------------------------------------------->8