protected void addLinkedPositions(final ASTRewrite rewrite, final VariableDeclarationFragment fragment, final List positionGroups) {
protected void addLinkedPositions(final ASTRewrite rewrite, final VariableDeclarationFragment fragment, final LinkedProposalModel positionGroups) {
	protected void addLinkedPositions(final ASTRewrite rewrite, final VariableDeclarationFragment fragment, final List positionGroups) {		Assert.isNotNull(rewrite);		Assert.isNotNull(fragment);		final Expression initializer= fragment.getInitializer();		if (initializer != null) {			PositionGroup group= new PositionGroup(GROUP_INITIALIZER);			group.addFirstPosition(rewrite.track(initializer));			positionGroups.add(group);		}	}