Bug 44443 [Tasks] Problems View should 'filter' more efficiently
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/FieldDone.java
}
	/**
	 * @see org.eclipse.ui.views.markerview.IField#getValue(java.lang.Object)
	 */
	public String getValue(Object obj) {
		return ""; 
	}
	/**
	 * @see org.eclipse.ui.views.markerview.IField#getImage(java.lang.Object)
	 */
	public Image getImage(Object obj) {
		if (obj == null || !(obj instanceof IMarker)) {
			return null;
		}
		IMarker marker = (IMarker) obj;
		if (!marker.getAttribute(IMarker.USER_EDITABLE, true)) {
			return null;
		}
		if (marker.getAttribute(IMarker.DONE, false)) {
			return ImageFactory.getImage(COMPLETE_IMAGE_PATH);
		}
		return ImageFactory.getImage(INCOMPLETE_IMAGE_PATH);
	}
	/**
	 * @see java.lang.Object#equals(java.lang.Object)
	 */
	public boolean equals(Object other) {
		if (!(other instanceof IField)) {
			return false;
		}