TagToolPaletteEntry paletteEntry = new TagToolPaletteEntry(
new CustomButtonPaletteComponent(CUSTITLDConstant.URI_HTML,strbuttonTAG,"custButton",CUSTPaletteRoot.class),
compName, "Create a MyComp",
ImageDescriptor.createFromFile(MyComponentFigure.class,"icons/MyFig.gif "),
ImageDescriptor.createFromFile(MyComponentFigure.class, "icons/MyFig.gif"));

public class CustDropCustomizer extends AbstractDropCustomizer {
	
	private CustAdaptable dropCustomizationData;
	IDropSourceData dropSourceData;
	TagIdentifier target;
	
	public CustDropCustomizer(IDropSourceData dropSourceData, TagIdentifier tagId) {
		
		this.target = tagId;
		this.dropCustomizationData = getDropCustomizationData();
		this.dropSourceData = dropSourceData;	
	}

	public CustAdaptable getDropCustomizationData()
	{
	return new CustAdaptable(target);
	}
	
	@Override
	public IStatus runCustomizer() {
		return super.runCustomizer();
	}
	
	@Override
	public IStatus runCustomizer(final IFile file, final IDOMPosition position)
    {
		final String tagName = ((ITagDropSourceData)dropSourceData).getTagName();
		dropCustomizationData.getAttributeData().addAttribute(dropCustomizationData.getTagIdentifier().getTagName(),"testValue");		
        return Status.OK_STATUS;
    }
}

public class CustElementEdit  implements IElementEdit {
	CUSTDropCustomizer drpCustomizer;	

	@Override
	public IDropCustomizer getDropCustomizer(TagIdentifier tag) {
	
		return (IDropCustomizer) drpCustomizer.getDropCustomizationData();
	}

	@Override
	public IDropCustomizer getDropCustomizer(IDropSourceData dropSourceData) {
		// TODO Auto-generated method stub
		TagIdentifier tagId = null;
		 if (dropSourceData instanceof ITagDropSourceData)
	        {
	            final String uri = ((ITagDropSourceData)dropSourceData).getNamespace();
	            final String tagName = ((ITagDropSourceData)dropSourceData).getTagName();
	            tagId = TagIdentifierFactory.createJSPTagWrapper(uri, tagName);

	        }
		//Here I am passing the instance for DropCustmizer
		 drpCustomizer = new CUSTDropCustomizer(tagId);
		return drpCustomizer;
	}

}

public class CUSTDropCustomizer extends AbstractDropCustomizer {
	
	private CUSTAdaptable dropCustomizationData;
	TagIdentifier target;
	CUSTAdaptable CUSTAdaptable;
	
	public CUSTDropCustomizer(TagIdentifier tagId) {		
		this.target = tagId;
	}

	public CUSTAdaptable getDropCustomizationData()
	{
	//Changed the return type
	return dropCustomizationData;
	}
	
	@Override
	public IStatus runCustomizer() {	
		return super.runCustomizer();
	}
	
	@Override
	public IStatus runCustomizer(final IFile file, final IDOMPosition position)
    {
		Map<String,String> map = new HashMap<String,String>();
		map.put("type","submit");
		
		//creating the adaptable instance here
		this.dropCustomizationData = new CUSTAdaptable(target);
		//Tried both the methods named add and set, but none of them worked
		this.dropCustomizationData.addAttribute("type","submit");
		//dropCustomizationData.getAttributeData().setAttributes(map);
		
		//Returning OK_STATUS as not sure about the changes
        return Status.OK_STATUS;
    }
}

public class CUSTAdaptable extends CustomizationDataImpl {

    private TagIdentifier tagIdentifier;
    private AttributeData _attrs;
    private ChildrenData childrenData;
    private ParentData parentData;

	
	public CUSTAdaptable(TagIdentifier target) {
		super(target);
		   tagIdentifier = target;
	        _attrs = new AttributeData();
	        parentData = new ParentData();
	        childrenData = new ChildrenData();
		// TODO Auto-generated constructor stub
	}

    /* (non-Javadoc)
     * @see org.eclipse.jst.pagedesigner.itemcreation.customizer.ICustomizationData#getTagIdentifier()
     */
    public TagIdentifier getTagIdentifier()
    {
        return tagIdentifier;
    }

    
    /* (non-Javadoc)
     * @see org.eclipse.jst.pagedesigner.itemcreation.customizer.IWritableCustomizationData#setTagIdentifier(org.eclipse.jst.jsf.common.dom.TagIdentifier)
     */
    public void setTagIdentifier(TagIdentifier tagId)
    {
        this.tagIdentifier = tagId;
    }

}

<object width ="150" height="100">
<param name="movie" value="abhishek3D[1].swf">
<param name="quality" value="high" />
<param name="wmode" value="opaque" />
<embed src="video\abhishek3D[1].swf" width="550" height="400"</embed>
</object>

public class MyPaletteFigure implements Serializable ,IAdaptable{

	@Override
	public Object getAdapter(Class compClass) {
		// TODO Auto-generated method stub
		return compClass;
	}

	
}