src/main/java/org/apache/jcp/xml/dsig/internal/dom/DOMSubTreeData.java [144:175]:
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                    Node pSibling = null;
                    for (Node child = node.getFirstChild(); child != null;
                        child = child.getNextSibling()) {
                        nodeSetMinusCommentNodes(child, nodeSet, pSibling);
                        pSibling = child;
                    }
                    break;
                case Node.DOCUMENT_NODE :
                    pSibling = null;
                    for (Node child = node.getFirstChild(); child != null;
                        child = child.getNextSibling()) {
                        nodeSetMinusCommentNodes(child, nodeSet, pSibling);
                        pSibling = child;
                    }
                    break;
                case Node.TEXT_NODE :
                case Node.CDATA_SECTION_NODE:
                    // emulate XPath which only returns the first node in
                    // contiguous text/cdata nodes
                    if (prevSibling != null &&
                        (prevSibling.getNodeType() == Node.TEXT_NODE ||
                         prevSibling.getNodeType() == Node.CDATA_SECTION_NODE)) {
                        return;
                    }
                    nodeSet.add(node);
                    break;
                case Node.PROCESSING_INSTRUCTION_NODE :
                    nodeSet.add(node);
                    break;
                case Node.COMMENT_NODE:
                    if (withComments) {
                        nodeSet.add(node);
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src/main/java/org/apache/xml/security/signature/reference/ReferenceSubTreeData.java [143:174]:
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                    Node pSibling = null;
                    for (Node child = node.getFirstChild(); child != null;
                        child = child.getNextSibling()) {
                        nodeSetMinusCommentNodes(child, nodeSet, pSibling);
                        pSibling = child;
                    }
                    break;
                case Node.DOCUMENT_NODE :
                    pSibling = null;
                    for (Node child = node.getFirstChild(); child != null;
                        child = child.getNextSibling()) {
                        nodeSetMinusCommentNodes(child, nodeSet, pSibling);
                        pSibling = child;
                    }
                    break;
                case Node.TEXT_NODE :
                case Node.CDATA_SECTION_NODE:
                    // emulate XPath which only returns the first node in
                    // contiguous text/cdata nodes
                    if (prevSibling != null &&
                        (prevSibling.getNodeType() == Node.TEXT_NODE ||
                         prevSibling.getNodeType() == Node.CDATA_SECTION_NODE)) {
                        return;
                    }
                    nodeSet.add(node);
                    break;
                case Node.PROCESSING_INSTRUCTION_NODE :
                    nodeSet.add(node);
                    break;
                case Node.COMMENT_NODE:
                    if (withComments) {
                        nodeSet.add(node);
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