Mapping question - how to remove empty recordsets from output XML?

Hello everyone!
I have a mapping problem I hope you can help me out with.
Here is an example of the source message:
<IDOC>
.    <HEAD>
.    </HEAD>
.    <DET>
.    .    <Node>
.    .    .    <nodeA>001</nodeA>
.    .    .    <nodeB>OA</nodeB>
.    .    </Node>
.    .    <Node>
.    .    .    <nodeB>OB</nodeB>
.    .    </Node>
.    .    <Node>
.    .    .    <nodeA>002</nodeA>
.    .    .    <nodeB>OC</nodeB>
.    .    </Node>
.    </DET>
</IDOC>
After testing the above XML in the message mapping, here's what my target looks like:
<FILE>
.    .    <Rec>
.    .    .    <nA>001</nA>
.    .    .    <nB>OA</nB>
.    .    </Rec>
.    .    <Rec>
.    .    .    <nB>
.    .    .    <nA>
.    .    </Rec>
.    .    <Rec>
.    .    .    <nA>002</nA>
.    .    .    <nB>OC</nB>
.    .    </Rec>
</FILE>
"Node" in the "source" message is mapped to "Rec" in my "target" message.
"Node=" -
> "Rec"
You may notice the the "Rec" in the second entry has empty fields. The reason this is so is because I put an "IF" condition in field "nA" and field "nB" that checks whether "nodeA" in the "source" exists/has a value, and if it doesn't, empty values should be given.
Here's my problem, I need the XML output to be clean. All empty Recs should be removed from the Output XML so that it resembles the one below:
<FILE>
.    .    <Rec>
.    .    .    <nA>001</nA>
.    .    .    <nB>OA</nB>
.    .    </Rec>
.    .    <Rec>
.    .    .    <nA>002</nA>
.    .    .    <nB>OC</nB>
.    .    </Rec>
</FILE>
I've tried several ways to get this done to no avail. Would anyone be able to help me out? I would really, really appreciate it!
Warm regards,
Glenn

Hello,
Here's how the Display Queue looks like from the "CreateIF"
Default Context:
0     [false]     [suppress]
1     [false]     [suppress]
2     [false]     [suppress]
3     [true]     []
4     [false]     [suppress]
5     [true]     []
6     [false]     [suppress]
7     [false]     [suppress]
8     [false]     [suppress]
9     [true]     []
10     [false]     [suppress]
11     [false]     [suppress]
12     [false]     [suppress]
13     [true]     []
14     [false]     [suppress]
15     [false]     [suppress]
16     [false]     [suppress]
17     [true]     []
18     [false]     [suppress]
19     [false]     [suppress]
20     [false]     [suppress]
21     [true]     []
CreateIF Context up one notch:
0     [false]     [suppress]
1     [true]     []
2     [true]     []
3     [true]     []
4     [true]     []
5     [true]     []
6      [true]     []     
7     [true]     []
8     [false]     [suppress]
9     [false]     [suppress]
10     [false]     [suppress]
11     [false]     [suppress]
Here's how the Display Queue looks like from the "NodeA"
SUPPRESS     [false]
SUPPRESS     [false]
[0000000292]     [false]
[0000000292]     [true]
[0000000252]     [false]
[0000000252]     [true]
SUPPRESS     [false]
[0000000078]     [false]
[0000000078]     [false]
SUPPRESS     [true]
[0000000109]     [false]
[0000000109]     [false]
SUPPRESS     [false]
[0000000292]     [true]
[0000000292]     [false]
SUPPRESS     [false]
[0000000076]     [false]
[0000000076]     [true]
SUPPRESS     [false]
[0000000292]     [false]
[0000000292]     [false]
SUPPRESS     [true]
SUPPRESS     [false]
NodeA context one notch up:
SUPPRESS     [false]
[0000000292]     [true]
[0000000252]     [true]
[0000000078]     [true]
[0000000109]     [true]
[0000000292]     [true]
[0000000076]     [true]
[0000000292]     [true]
[0000000074]     [true]
[0000000077]     [true]
[0000000081]     [true]
[0000000292]     [true]
[0000000252]     [true]
[0000000081]     [true]
[0000000081]     [false]
SUPPRESS
Hope that helps you help me!
Glenn

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    REPORT  zcrm_trouble_ticket.
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            qmnum TYPE qmnum,
            equnr TYPE equnr,
            iloan TYPE iloan,
            ausvn TYPE ausvn,
            ausbs TYPE ausbs,
            auztv TYPE auztv,
            auztb TYPE auztb,
            iwerk TYPE iwerk,
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            indtx TYPE indltx,
            priok TYPE priok,
            strmn TYPE strmn,
            strur TYPE strur,
            ltrmn TYPE ltrmn,
            ltrur TYPE ltrur,
            objnr TYPE qmobjnr,
            arbpl TYPE lgwid,
            vkorg TYPE vkorg,
            vtweg TYPE vtweg,
            spart TYPE spart,
            END OF ty_qmel,
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            parnr TYPE i_parnr,
            parvw TYPE parvw,
            objnr TYPE qmobjnr,
            END OF ty_ihpa,
            BEGIN OF ty_crhd,
            arbpl TYPE arbpl,
            objid TYPE cr_objid,
            END OF ty_crhd,
            BEGIN OF ty_crtx,
            ktext TYPE cr_ktext,
            objid TYPE cr_objid,
            END OF ty_crtx,
            BEGIN OF ty_qmfe,
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            fegrp TYPE fegrp,
            qmnum TYPE qmnum,
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            urcod TYPE urcod,
            urgrp TYPE urgrp,
            urtxt TYPE urstx,
            qmnum TYPE qmnum,
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            BEGIN OF ty_iloa,
            tplnr TYPE tplnr,
            iloan TYPE iloan,
            END OF ty_iloa,
            BEGIN OF ty_output,
            qmnum TYPE qmnum,
            equnr TYPE equnr,
           iloan TYPE iloan,
            ausvn TYPE ausvn,
            ausbs TYPE ausbs,
            auztv TYPE auztv,
            auztb TYPE auztb,
            iwerk TYPE iwerk,
            qmtxt TYPE qmtxt,
            indtx TYPE indltx,
            priok TYPE priok,
            strmn TYPE strmn,
            strur TYPE strur,
            ltrmn TYPE ltrmn,
            ltrur TYPE ltrur,
           objnr TYPE qmobjnr,
           arbpl TYPE lgwid,
            vkorg TYPE vkorg,
            vtweg TYPE vtweg,
            spart TYPE spart,
            parnr TYPE i_parnr,
            parvw TYPE parvw,
            arbpl TYPE arbpl,
           objid TYPE cr_objid,
           arbpl1 TYPE arbpl,
            ktext TYPE cr_ktext,
            fecod TYPE fecod,
            fegrp TYPE fegrp,
            urcod TYPE urcod,
            urgrp TYPE urgrp,
            urtxt TYPE urstx,
            tplnr TYPE tplnr,
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           it_qmel TYPE STANDARD TABLE OF ty_qmel,
           it_ihpa TYPE STANDARD TABLE OF ty_ihpa,
           it_crhd TYPE STANDARD TABLE OF ty_crhd,
           it_crtx TYPE STANDARD TABLE OF ty_crtx,
           it_qmfe TYPE STANDARD TABLE OF ty_qmfe,
           it_qmur TYPE STANDARD TABLE OF ty_qmur,
           it_iloa TYPE STANDARD TABLE OF ty_iloa,
           it_output TYPE STANDARD TABLE OF ty_output,
           wa_qmih TYPE ty_qmih,
           wa_qmel TYPE ty_qmel,
           wa_ihpa TYPE ty_ihpa,
           wa_crhd TYPE ty_crhd,
           wa_crtx TYPE ty_crtx,
           wa_qmfe TYPE ty_qmfe,
           wa_qmur TYPE ty_qmur,
           wa_iloa TYPE ty_iloa,
           wa_output TYPE ty_output.
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                it_ihpa,
                it_crhd,
                it_crtx,
                it_qmfe,
                it_qmur,
                it_iloa,
                it_output.
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                 wa_qmel,
                 wa_ihpa,
                 wa_crhd,
                 wa_crtx,
                 wa_qmfe,
                 wa_qmur,
                 wa_iloa,
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      SELECT  qmnum
              equnr
              iloan
              ausvn
              ausbs
              auztv
              auztb
              iwerk
              FROM qmih
              INTO  TABLE it_qmih.
      SORT it_qmih BY qmnum .
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      SELECT   qmnum
               qmtxt
               indtx
               priok
               strmn
               strur
               ltrmn
               ltrur
               objnr
               arbpl
               vkorg
               vtweg
               spart
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               INTO TABLE it_qmel
               FOR ALL ENTRIES IN it_qmih
               WHERE qmnum = it_qmih-qmnum.
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                                                         indtx
                                                         strmn
                                                         strur
                                                         ltrmn
                                                         ltrur
                                                         objnr
                                                         arbpl
                                                         vkorg
                                                         vtweg
                                                         spart.
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        SELECT parnr
               parvw
               objnr
               FROM ihpa
               INTO TABLE it_ihpa
               FOR ALL ENTRIES IN it_qmel
               WHERE objnr = it_qmel-objnr.
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                                                         objnr.
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               objid
               FROM crhd
               INTO TABLE it_crhd
               FOR ALL ENTRIES IN it_qmel
               WHERE objid = it_qmel-arbpl.
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                                                         objid.
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               objid
               FROM crtx
               INTO TABLE it_crtx
               FOR ALL ENTRIES IN it_crhd
               WHERE objid = it_crhd-objid.
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                                                        objid.
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               FROM qmfe
               INTO TABLE it_qmfe
               FOR ALL ENTRIES IN it_qmih
               WHERE qmnum = it_qmih-qmnum.
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               qmnum
               FROM qmur
               INTO TABLE it_qmur
               FOR ALL ENTRIES IN it_qmih
               WHERE qmnum = it_qmih-qmnum.
      ENDIF.
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                                                         urgrp
                                                         urtxt.
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                iloan
                FROM iloa
                INTO TABLE it_iloa
                FOR ALL ENTRIES IN it_qmih
                WHERE iloan = it_qmih-iloan.
      ENDIF.
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                                                        iloan.
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       wa_output-iloan = wa_qmih-iloan.
        wa_output-ausvn = wa_qmih-ausvn.
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        wa_output-auztv = wa_qmih-auztv.
        wa_output-auztb = wa_qmih-auztb.
        wa_output-iwerk = wa_qmih-iwerk.
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        wa_output-qmtxt = wa_qmel-qmtxt.
        wa_output-indtx = wa_qmel-indtx.
        wa_output-priok = wa_qmel-priok.
        wa_output-strmn = wa_qmel-strmn.
        wa_output-strur = wa_qmel-strur.
        wa_output-ltrmn = wa_qmel-ltrmn.
        wa_output-ltrur = wa_qmel-ltrur.
       wa_output-objnr = wa_qmel-objnr.
       wa_output-arbpl = wa_qmel-arbpl.
        wa_output-vkorg = wa_qmel-vkorg.
        wa_output-vtweg = wa_qmel-vtweg.
        wa_output-spart = wa_qmel-spart.
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        CLEAR wa_output.
        READ TABLE it_ihpa INTO wa_ihpa WITH KEY objnr = wa_qmel-objnr.
        wa_output-parnr = wa_ihpa-parnr.
        wa_output-parvw = wa_ihpa-parvw.
        APPEND wa_output TO it_output.
        CLEAR wa_output.
        READ TABLE it_crhd INTO wa_crhd WITH KEY objid = wa_qmel-arbpl.
        wa_output-arbpl = wa_crhd-arbpl.
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        CLEAR wa_output.
        READ TABLE it_crtx INTO wa_crtx WITH KEY objid = wa_crhd-objid.
        wa_output-ktext = wa_crtx-ktext.
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        CLEAR wa_output.
        READ TABLE it_qmfe INTO wa_qmfe WITH KEY qmnum = wa_qmih-qmnum.
        wa_output-fecod = wa_qmfe-fecod.
        wa_output-fegrp = wa_qmfe-fegrp.
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        CLEAR wa_output.
        READ TABLE it_qmur INTO wa_qmur WITH KEY qmnum = wa_qmih-qmnum.
        wa_output-urcod = wa_qmur-urcod.
        wa_output-urgrp = wa_qmur-urgrp.
        wa_output-urtxt = wa_qmur-urtxt.
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        wa_output-tplnr = wa_iloa-tplnr.
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                                                                  equnr
                                                                  ausvn
                                                                  ausbs
                                                                  auztv
                                                                  auztb
                                                                  iwerk
                                                                  qmtxt
                                                                  indtx
                                                                  priok
                                                                  strmn
                                                                  strur
                                                                  ltrmn
                                                                  ltrur
                                                                  vkorg
                                                                  vtweg
                                                                  spart
                                                                  parnr
                                                                  parvw
                                                                  arbpl
                                                                  ktext
                                                                  fecod
                                                                  fegrp
                                                                  urcod
                                                                  urgrp
                                                                  urtxt
                                                                  tplnr.
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    EXPORTING
      CLIENT                  = SY-MANDT
      FLG_USER_STAT           = ' '
       objnr                   =
      ONLY_ACTIVE             = 'X'
       spras                   = en
      BYPASS_BUFFER           = ' '
    IMPORTING
      ANW_STAT_EXISTING       =
      E_STSMA                 =
      LINE                    =
      USER_LINE               =
      STONR                   =
    EXCEPTIONS
      OBJECT_NOT_FOUND        = 1
      OTHERS                  = 2
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    MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
            WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
    *ENDIF.
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    EXPORTING
      CLIENT                        = SY-MANDT
       id                            =
       language                      =
       name                          =
       object                        =
      ARCHIVE_HANDLE                = 0
      LOCAL_CAT                     = ' '
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      HEADER                        =
    tables
       lines                         =
    EXCEPTIONS
      ID                            = 1
      LANGUAGE                      = 2
      NAME                          = 3
      NOT_FOUND                     = 4
      OBJECT                        = 5
      REFERENCE_CHECK               = 6
      WRONG_ACCESS_TO_ARCHIVE       = 7
      OTHERS                        = 8
    *IF sy-subrc <> 0.
    MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
            WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
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    *WRITE : / WA_OUTPUT-qmnum,
             WA_OUTPUT-equnr,
             WA_OUTPUT-iloan,
             WA_OUTPUT-ausvn,
             WA_OUTPUT-ausbs,
             WA_OUTPUT-auztv,
             WA_OUTPUT-auztb,
             WA_OUTPUT-qmtxt,
             WA_OUTPUT-indtx,
             WA_OUTPUT-strmn,
             WA_OUTPUT-strur,
             WA_OUTPUT-ltrmn,
             WA_OUTPUT-ltrur,
             WA_OUTPUT-objnr,
             WA_OUTPUT-arbpl,
             WA_OUTPUT-parnr,
             WA_OUTPUT-parvw,
             WA_OUTPUT-objid,
             WA_OUTPUT-ktext,
             WA_OUTPUT-fecod,
             WA_OUTPUT-fegrp,
             WA_OUTPUT-urcod,
             WA_OUTPUT-urgrp,
             WA_OUTPUT-urtxt,
             WA_OUTPUT-tplnr.
    *ENDLOOP.
      CALL FUNCTION 'GUI_DOWNLOAD'
        EXPORTING
      BIN_FILESIZE                    =
          filename                        = 'E:\CRM1.TXT'
      FILETYPE                        = 'ASC'
      APPEND                          = ' '
         write_field_separator           = '|'
      HEADER                          = '00'
      TRUNC_TRAILING_BLANKS           = ' '
      WRITE_LF                        = 'X'
      COL_SELECT                      = ' '
      COL_SELECT_MASK                 = ' '
      DAT_MODE                        = ' '
      CONFIRM_OVERWRITE               = ' '
      NO_AUTH_CHECK                   = ' '
      CODEPAGE                        = ' '
      IGNORE_CERR                     = ABAP_TRUE
      REPLACEMENT                     = '#'
      WRITE_BOM                       = ' '
      TRUNC_TRAILING_BLANKS_EOL       = 'X'
      WK1_N_FORMAT                    = ' '
      WK1_N_SIZE                      = ' '
      WK1_T_FORMAT                    = ' '
      WK1_T_SIZE                      = ' '
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      FILELENGTH                      =
        TABLES
          data_tab                        = it_output
      FIELDNAMES                      =
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      FILE_WRITE_ERROR                = 1
      NO_BATCH                        = 2
      GUI_REFUSE_FILETRANSFER         = 3
      INVALID_TYPE                    = 4
      NO_AUTHORITY                    = 5
      UNKNOWN_ERROR                   = 6
      HEADER_NOT_ALLOWED              = 7
      SEPARATOR_NOT_ALLOWED           = 8
      FILESIZE_NOT_ALLOWED            = 9
      HEADER_TOO_LONG                 = 10
      DP_ERROR_CREATE                 = 11
      DP_ERROR_SEND                   = 12
      DP_ERROR_WRITE                  = 13
      UNKNOWN_DP_ERROR                = 14
      ACCESS_DENIED                   = 15
      DP_OUT_OF_MEMORY                = 16
      DISK_FULL                       = 17
      DP_TIMEOUT                      = 18
      FILE_NOT_FOUND                  = 19
      DATAPROVIDER_EXCEPTION          = 20
      CONTROL_FLUSH_ERROR             = 21
      OTHERS                          = 22
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    MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
            WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
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    <SenderSystemId>TR</SenderSystemId>
    </Header>
    </Message>
    <ErrorCode>363 </ErrorCode>
    <ErrorEnterPriseId>NIHK</ErrorEnterPriseId>
    <ErrorStatus>1</ErrorStatus>
    <ErrorSystemId>STL</ErrorSystemId>
    <ErrorTimes>31</ErrorTimes>
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    XPathExpression expression6 = xpath.compile(xmlpath6);
    Object result6 = expression6.evaluate(doc, XPathConstants.NODE);
    Node node6=(Node) result6;
    node6.getParentNode().removeChild(node6);
    XPathExpression expression7 = xpath.compile(xmlpath7);
    Object result7 = expression7.evaluate(doc, XPathConstants.NODE);
    Node node7=(Node) result7;
    node7.getParentNode().removeChild(node7);
    doc.normalize();
    doc.normalizeDocument();
    TransformerFactory tf = TransformerFactory.newInstance();
    Transformer t = tf.newTransformer();
    t.setOutputProperty(OutputKeys.INDENT, "yes");
    t.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
    t.setOutputProperty(OutputKeys.METHOD,"xml");
    t.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
    the xml output i am getting is
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    <Header>
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    <RecipientEnterpriseId>N</RecipientEnterpriseId>
    <RecipentSystemId>STL</RecipentSystemId>
    <Remarks>REMARSK</Remarks>
    <SenderEnterpriseId>N</SenderEnterpriseId>
    <SenderSystemId>T</SenderSystemId>
    </Header>
    </Message>
    <b>could you please let me know how to avoid empty lines in the xml doucment output</b>
    this is the method i am using to get the result
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    DocumentBuilder db = factory.newDocumentBuilder();
    //parse file into DOM
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    System.out.println ("HI THIS xml is validation "+xml);
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    db.setEntityResolver(res);
    Document doc = db.parse(new InputSource(new StringReader(xml)));
    XPathFactory xpf = XPathFactory.newInstance();
    XPath xpath = xpf.newXPath();
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    String xmlpath="/Message/Header/CounterPartyType/text()";
    String xmlpath1="/Message/Header/RecipentSystemId/text()";
    String xmlpath2="/Message/Header/ErrorSystemId/text()";
    XPathExpression expression = xpath.compile(xmlpath);
    XPathExpression expression1 = xpath.compile(xmlpath2);
    Object result = expression.evaluate(doc, XPathConstants.NODE);
    Object result1 = expression1.evaluate(doc, XPathConstants.NODE);
    Node node = (Node) result;
    Node node1 = (Node) result1;
    System.out.println("the values of the string is " +node.getNodeValue());
    System.out.println("the values of the string is " +node1.getNodeValue());
    // for (int i = 0; i < nodes.getLength(); i++) {
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    XPathExpression expression2 = xpath.compile(xmlpath1);
    Object result2 = expression2.evaluate(doc, XPathConstants.NODE);
    Node node2 = (Node) result2;
    System.out.println(node2);
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    System.out.println(node2);
    //removing the nodes from document
    String xmlpath3="/Message/Header/ErrorCode";
    String xmlpath4="/Message/Header/ErrorEnterPriseId";
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    String xmlpath6="/Message/Header/ErrorSystemId";
    String xmlpath7="/Message/Header/ErrorTimes";
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    Object result3 = expression3.evaluate(doc, XPathConstants.NODE);
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    Node node4 = (Node) result4;
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    TransformerFactory tf = TransformerFactory.newInstance();
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    t.setOutputProperty(OutputKeys.INDENT, "yes");
    t.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
    t.setOutputProperty(OutputKeys.METHOD,"xml");
    t.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
    t.transform(new DOMSource(doc), new StreamResult(System.out));
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    </pre>
    Edited by: user12185243 on Apr 6, 2013 6:38 AM
    Edited by: user12185243 on Apr 6, 2013 6:41 AM
    Edited by: user12185243 on Apr 6, 2013 6:43 AM
    Edited by: user12185243 on Apr 6, 2013 6:45 AM
    Edited by: user12185243 on Apr 6, 2013 9:00 AM

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    Posted by Marc Kelderman SOA Blog at 1/16/2008 09:20:00 PM

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