Description Joe Bienkowski 2005-07-15 15:12:11 EDT

We have a large 1.5 codebase and when we put it into the new version of eclipse 
we found that one class wouldn't compile.  The issue was an internal eclipse 
null pointer error and it just put the exception at the first line of one of 
our classes.  We were able to strip out all of the other classes and strip down 
the broken class and found that one complex method seemed to be the cause.  

This class compiles fine using suns 1.5.0_02-b09 compiler.  We've tested this 
on several diferent machines running eclipse 3.1 and we have eclipse set to 
compile as a 1.5 file.  

eclipse version
Version: 3.1.0
Build id: I20050627-1435


If you would like more information about this or a screen print of the error 
eclipse is giving please email me at jbienkowski@comcast.net

Here is the class:


package com.mm.rs.jccs.ui.jccs;

import com.mm.rs.jccs.*;
import java.lang.reflect.*;
import java.util.*; 

interface StoredObject {
	String getUid();
	
	String getName();
	
	String getDescription();
	
}

interface GraphDiagramNode //extends Comparable
{

}

public class JccsGraphDiagramNode
    <ObjectType extends StoredObject,
     ParentType extends StoredObject>
    implements GraphDiagramNode
{
    private final JccsGraphDiagramModel model;
    private final JccsGraphDiagramNode<? extends ParentType, ?> parent;
    private final ObjectType object;

    public class JccsGraphDiagramModel 
    {
    }
 
    public interface GraphDiagramModel
    {
       
    }
    
    public class Dependency
    {
     
    }
   
    public JccsGraphDiagramNode(
        JccsGraphDiagramModel argModel,
        JccsGraphDiagramNode<? extends ParentType, ?> argParent,
        ObjectType argObject)
    {
        model = argModel;
        parent = argParent;
        object = argObject;
    }

    protected
        <ChildType extends StoredObject>
        Collection<? extends JccsGraphDiagramNode<ChildType, ? super 
ObjectType>> createChildren(
            Iterator<ChildType> argData,
            Class<? extends JccsGraphDiagramNode<ChildType, ? super 
ObjectType>> argChildNodeClass,
        Class<? extends StoredObject> argInterface)
    {
        Collection<JccsGraphDiagramNode<ChildType, ? super ObjectType>> output
            = new LinkedList<JccsGraphDiagramNode<ChildType, ? super 
ObjectType>>();

        try
        {
            while (argData.hasNext())
            {
                ChildType next = argData.next();
                Constructor<? extends JccsGraphDiagramNode<ChildType, ? super 
ObjectType>>
                    constructor = argChildNodeClass.getConstructor(
                        JccsGraphDiagramModel.class,
                        getClass(),
                        argInterface);

                output.add(constructor.newInstance(model, this, next));
            }
        }
        catch (Exception x)
        {
            x.printStackTrace();
        }

        return output;
    }
}