Trying to parse a xml but getting malformedURLexception

Question

I´m trying to parse a xml but getting a error.

public static String xmlVersion(String source) {

try {
    DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
    Document document = documentBuilder.parse(source);
    return document.getDocumentElement().getAttribute("versao");
} catch (SAXException | IOException | ParserConfigurationException e) {
    e.printStackTrace();
}
return null;

}

And the stackTrace

java.net.MalformedURLException: no protocol: <?xml version="1.0" encoding="UTF-8"?><nfeProc versao="2.00" xmlns="http://www.portalfiscal.inf.br/nfe"><NFe xmlns="http://www.portalfiscal.inf.br/nfe"><infNFe versao="2.00" Id="NFe31130605633253000205550010000002571000169370"><ide><cUF>31</cUF><cNF>00016937</cNF><natOp>Devolucao de compra para comercializacao em operacao com mer</natOp><indPag>0</indPag><mod>55</mod><serie>1</serie><nNF>257</nNF><dEmi>2013-06-14</dEmi><dSaiEnt>2013-06-14</dSaiEnt><tpNF>1</tpNF><cMunFG>3147907</cMunFG><tpImp>1</tpImp><tpEmis>1</tpEmis><cDV>0</cDV><tpAmb>1</tpAmb><finNFe>1</finNFe><procEmi>0</procEmi><verProc>2.0.1.2</verProc></ide><emit><CNPJ>05633253000205</CNPJ><xNome>SUPERMERCADO EXPOSICAO LTDA</xNome><xFant>SUPERMERCADO EXPOSICAO 2</xFant><enderEmit><xLgr>RUA JOAO TEIXEIRA MENDES</xLgr><nro>541</nro><xBairro>N.S.APARECIDA</xBairro><cMun>3147907</cMun><xMun>PASSOS</xMun><UF>MG</UF><CEP>37902419</CEP><cPais>1058</cPais><xPais>BRASIL</xPais><fone>3535215796</fone></enderEmit><IE>4792308680128</IE><CRT>3</CRT></emit><dest><CNPJ>16849231000619</CNPJ><xNome>ITAMBE ALIMENTOS S A</xNome><enderDest><xLgr>RODOVIA BR 262 ANEXO I KM403</xLgr><nro>S/N</nro><xBairro>PATAFUFO</xBairro><cMun>3147105</cMun><xMun>Para de Minas</xMun><UF>MG</UF><CEP>35661390</CEP><cPais>1058</cPais><xPais>BRASIL</xPais></enderDest><IE>0020322880432</IE></dest><det nItem="1"><prod><cProd>13169</cProd><cEAN>7896051111832</cEAN><xProd>BEBIDA LACTEA ITAMBE FAMILIA VITAMINA C/ FRUTAS 1L</xProd><NCM>04039000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>1.0000</qCom><vUnCom>3.1900000000</vUnCom><vProd>3.19</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>1.0000</qTrib><vUnTrib>3.1900000000</vUnTrib><vOutro>0.07</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>1.24</vBC><pICMS>18.00</pICMS><vICMS>0.22</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISNT><CST>06</CST></PISNT></PIS><COFINS><COFINSNT><CST>06</CST></COFINSNT></COFINS></imposto></det><det nItem="2"><prod><cProd>23003</cProd><cEAN>7896051121831</cEAN><xProd>COALHADA ITAMBE DESNATADA 130GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>3.0000</qCom><vUnCom>0.8300000000</vUnCom><vProd>2.49</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>3.0000</qTrib><vUnTrib>0.8300000000</vUnTrib><vOutro>0.05</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>33.33</pRedBC><vBC>1.66</vBC><pICMS>18.00</pICMS><vICMS>0.30</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISAliq><CST>01</CST><vBC>0.00</vBC><pPIS>0.00</pPIS><vPIS>0.00</vPIS></PISAliq></PIS><COFINS><COFINSAliq><CST>01</CST><vBC>0.00</vBC><pCOFINS>0.00</pCOFINS><vCOFINS>0.00</vCOFINS></COFINSAliq></COFINS></imposto></det><det nItem="3"><prod><cProd>23004</cProd><cEAN>7896051125037</cEAN><xProd>IOGURTE FRUTAMBE BAUNILHA AMEIXA 130GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>7.0000</qCom><vUnCom>0.9800000000</vUnCom><vProd>6.86</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>7.0000</qTrib><vUnTrib>0.9800000000</vUnTrib><vOutro>0.15</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>2.67</vBC><pICMS>18.00</pICMS><vICMS>0.48</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISAliq><CST>01</CST><vBC>0.00</vBC><pPIS>0.00</pPIS><vPIS>0.00</vPIS></PISAliq></PIS><COFINS><COFINSAliq><CST>01</CST><vBC>0.00</vBC><pCOFINS>0.00</pCOFINS><vCOFINS>0.00</vCOFINS></COFINSAliq></COFINS></imposto></det><det nItem="4"><prod><cProd>23005</cProd><cEAN>7896051125259</cEAN><xProd>IOGURTE FRUTAMBE BAUNILHA MARACUJA 130GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>9.0000</qCom><vUnCom>0.9500000000</vUnCom><vProd>8.55</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>9.0000</qTrib><vUnTrib>0.9500000000</vUnTrib><vOutro>0.18</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>3.33</vBC><pICMS>18.00</pICMS><vICMS>0.60</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISAliq><CST>01</CST><vBC>0.00</vBC><pPIS>0.00</pPIS><vPIS>0.00</vPIS></PISAliq></PIS><COFINS><COFINSAliq><CST>01</CST><vBC>0.00</vBC><pCOFINS>0.00</pCOFINS><vCOFINS>0.00</vCOFINS></COFINSAliq></COFINS></imposto></det><det nItem="5"><prod><cProd>23010</cProd><cEAN>7896051127093</cEAN><xProd>IOGURTE ITAMBE GOODY FRUTI 600GR</xProd><NCM>04039000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>5.0000</qCom><vUnCom>1.7500000000</vUnCom><vProd>8.75</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>5.0000</qTrib><vUnTrib>1.7500000000</vUnTrib><vOutro>0.19</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>3.40</vBC><pICMS>18.00</pICMS><vICMS>0.61</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISAliq><CST>01</CST><vBC>0.00</vBC><pPIS>0.00</pPIS><vPIS>0.00</vPIS></PISAliq></PIS><COFINS><COFINSAliq><CST>01</CST><vBC>0.00</vBC><pCOFINS>0.00</pCOFINS><vCOFINS>0.00</vCOFINS></COFINSAliq></COFINS></imposto></det><det nItem="6"><prod><cProd>23011</cProd><cEAN>7896051121268</cEAN><xProd>IOGURTE ITAMBE NATURAL C/MEL 180GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>7.0000</qCom><vUnCom>0.8900000000</vUnCom><vProd>6.23</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>7.0000</qTrib><vUnTrib>0.8900000000</vUnTrib><vOutro>0.13</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>2.42</vBC><pICMS>18.00</pICMS><vICMS>0.44</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISAliq><CST>01</CST><vBC>0.00</vBC><pPIS>0.00</pPIS><vPIS>0.00</vPIS></PISAliq></PIS><COFINS><COFINSAliq><CST>01</CST><vBC>0.00</vBC><pCOFINS>0.00</pCOFINS><vCOFINS>0.00</vCOFINS></COFINSAliq></COFINS></imposto></det><det nItem="7"><prod><cProd>23012</cProd><cEAN>7896051121282</cEAN><xProd>IOGURTE ITAMBE NATURAL DESNATADO 180GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>2.0000</qCom><vUnCom>0.8900000000</vUnCom><vProd>1.78</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>2.0000</qTrib><vUnTrib>0.8900000000</vUnTrib><vOutro>0.04</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>0.69</vBC><pICMS>18.00</pICMS><vICMS>0.12</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISAliq><CST>01</CST><vBC>0.00</vBC><pPIS>0.00</pPIS><vPIS>0.00</vPIS></PISAliq></PIS><COFINS><COFINSAliq><CST>01</CST><vBC>0.00</vBC><pCOFINS>0.00</pCOFINS><vCOFINS>0.00</vCOFINS></COFINSAliq></COFINS></imposto></det><det nItem="8"><prod><cProd>23014</cProd><cEAN>7896051121251</cEAN><xProd>IOGURTE ITAMBE NATURAL INTEGRAL 180GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>7.0000</qCom><vUnCom>0.8900000000</vUnCom><vProd>6.23</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>7.0000</qTrib><vUnTrib>0.8900000000</vUnTrib><vOutro>0.13</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>2.42</vBC><pICMS>18.00</pICMS><vICMS>0.44</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISAliq><CST>01</CST><vBC>0.00</vBC><pPIS>0.00</pPIS><vPIS>0.00</vPIS></PISAliq></PIS><COFINS><COFINSAliq><CST>01</CST><vBC>0.00</vBC><pCOFINS>0.00</pCOFINS><vCOFINS>0.00</vCOFINS></COFINSAliq></COFINS></imposto></det><det nItem="9"><prod><cProd>23014</cProd><cEAN>7896051121251</cEAN><xProd>IOGURTE ITAMBE NATURAL INTEGRAL 180GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>8.0000</qCom><vUnCom>1.2500000000</vUnCom><vProd>10.00</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>8.0000</qTrib><vUnTrib>1.2500000000</vUnTrib><vOutro>0.21</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>3.89</vBC><pICMS>18.00</pICMS><vICMS>0.70</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISAliq><CST>01</CST><vBC>0.00</vBC><pPIS>0.00</pPIS><vPIS>0.00</vPIS></PISAliq></PIS><COFINS><COFINSAliq><CST>01</CST><vBC>0.00</vBC><pCOFINS>0.00</pCOFINS><vCOFINS>0.00</vCOFINS></COFINSAliq></COFINS></imposto></det><det nItem="10"><prod><cProd>23017</cProd><cEAN>7896051142249</cEAN><xProd>IOGURTE ITAMBEZINHO FRUTAS 360GR</xProd><NCM>40610900</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>5.0000</qCom><vUnCom>2.0900000000</vUnCom><vProd>10.45</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>5.0000</qTrib><vUnTrib>2.0900000000</vUnTrib><vOutro>0.22</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>4.06</vBC><pICMS>18.00</pICMS><vICMS>0.73</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISNT><CST>06</CST></PISNT></PIS><COFINS><COFINSNT><CST>06</CST></COFINSNT></COFINS></imposto></det><det nItem="11"><prod><cProd>23018</cProd><cEAN>7896051142218</cEAN><xProd>IOGURTE ITAMBEZINHO MORANGO 360GR</xProd><NCM>04061090</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>2.0000</qCom><vUnCom>1.9600000000</vUnCom><vProd>3.92</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>2.0000</qTrib><vUnTrib>1.9600000000</vUnTrib><vOutro>0.08</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>1.52</vBC><pICMS>18.00</pICMS><vICMS>0.27</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISNT><CST>06</CST></PISNT></PIS><COFINS><COFINSNT><CST>06</CST></COFINSNT></COFINS></imposto></det><det nItem="12"><prod><cProd>23020</cProd><cEAN>7896051123842</cEAN><xProd>IOGURTE VITAMBE COCO 180GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>15.0000</qCom><vUnCom>0.8500000000</vUnCom><vProd>12.75</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>15.0000</qTrib><vUnTrib>0.8500000000</vUnTrib><vOutro>0.27</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>4.96</vBC><pICMS>18.00</pICMS><vICMS>0.89</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISNT><CST>06</CST></PISNT></PIS><COFINS><COFINSNT><CST>06</CST></COFINSNT></COFINS></imposto></det><det nItem="13"><prod><cProd>23021</cProd><cEAN>7896051123859</cEAN><xProd>IOGURTE VITAMBE FRUTAS VERMELHAS 180GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>1.0000</qCom><vUnCom>0.8500000000</vUnCom><vProd>0.85</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>1.0000</qTrib><vUnTrib>0.8500000000</vUnTrib><vOutro>0.02</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>0.33</vBC><pICMS>18.00</pICMS><vICMS>0.06</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISNT><CST>06</CST></PISNT></PIS><COFINS><COFINSNT><CST>06</CST></COFINSNT></COFINS></imposto></det><det nItem="14"><prod><cProd>23023</cProd><cEAN>7896051123828</cEAN><xProd>IOGURTE VITAMBE MARACUJA 180GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>2.0000</qCom><vUnCom>0.8500000000</vUnCom><vProd>1.70</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>2.0000</qTrib><vUnTrib>0.8500000000</vUnTrib><vOutro>0.04</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>0.66</vBC><pICMS>18.00</pICMS><vICMS>0.12</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISNT><CST>06</CST></PISNT></PIS><COFINS><COFINSNT><CST>06</CST></COFINSNT></COFINS></imposto></det><det nItem="15"><prod><cProd>23024</cProd><cEAN>7896051123811</cEAN><xProd>IOGUTE VITAMBE MORANGO 180GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>11.0000</qCom><vUnCom>0.8500000000</vUnCom><vProd>9.35</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>11.0000</qTrib><vUnTrib>0.8500000000</vUnTrib><vOutro>0.20</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>3.64</vBC><pICMS>18.00</pICMS><vICMS>0.66</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISNT><CST>06</CST></PISNT></PIS><COFINS><COFINSNT><CST>06</CST></COFINSNT></COFINS></imposto></det><det nItem="16"><prod><cProd>23027</cProd><cEAN>7896051126010</cEAN><xProd>LEITE FERMENTADO ITAMBE 80GR</xProd><NCM>40390000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>4.0000</qCom><vUnCom>0.4100000000</vUnCom><vProd>1.64</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>4.0000</qTrib><vUnTrib>0.4100000000</vUnTrib><vOutro>0.04</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>0.64</vBC><pICMS>18.00</pICMS><vICMS>0.12</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISNT><CST>06</CST></PISNT></PIS><COFINS><COFINSNT><CST>06</CST></COFINSNT></COFINS></imposto></det><det nItem="17"><prod><cProd>23068</cProd><cEAN>7896051121817</cEAN><xProd>COALHADA ITAMBE NATURAL 130GR</xProd><NCM>40310000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>1.0000</qCom><vUnCom>0.8300000000</vUnCom><vProd>0.83</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>1.0000</qTrib><vUnTrib>0.8300000000</vUnTrib><vOutro>0.02</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>33.33</pRedBC><vBC>0.55</vBC><pICMS>18.00</pICMS><vICMS>0.10</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISAliq><CST>01</CST><vBC>0.00</vBC><pPIS>0.00</pPIS><vPIS>0.00</vPIS></PISAliq></PIS><COFINS><COFINSAliq><CST>01</CST><vBC>0.00</vBC><pCOFINS>0.00</pCOFINS><vCOFINS>0.00</vCOFINS></COFINSAliq></COFINS></imposto></det><det nItem="18"><prod><cProd>23384</cProd><cEAN>7896051125525</cEAN><xProd>IOGURTE ITAMBE FIT MORANGO MACA AMEIXA 100GR</xProd><NCM>04031000</NCM><CFOP>5411</CFOP><uCom>UN</uCom><qCom>1.0000</qCom><vUnCom>0.4000000000</vUnCom><vProd>0.40</vProd><cEANTrib/><uTrib>UN</uTrib><qTrib>1.0000</qTrib><vUnTrib>0.4000000000</vUnTrib><vOutro>0.01</vOutro><indTot>1</indTot></prod><imposto><ICMS><ICMS70><orig>0</orig><CST>70</CST><modBC>2</modBC><pRedBC>61.11</pRedBC><vBC>0.16</vBC><pICMS>18.00</pICMS><vICMS>0.03</vICMS><modBCST>0</modBCST><vBCST>0.00</vBCST><pICMSST>0.00</pICMSST><vICMSST>0.00</vICMSST></ICMS70></ICMS><PIS><PISAliq><CST>01</CST><vBC>0.00</vBC><pPIS>0.00</pPIS><vPIS>0.00</vPIS></PISAliq></PIS><COFINS><COFINSAliq><CST>01</CST><vBC>0.00</vBC><pCOFINS>0.00</pCOFINS><vCOFINS>0.00</vCOFINS></COFINSAliq></COFINS></imposto></det><det nItem="19"><prod><cProd>24367</cProd><cEAN>7896051161011</cEAN><xProd>IOGURTE ITAMBEZINHO MORANGO 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versao="2.00"><infProt><tpAmb>1</tpAmb><verAplic>13_0_89</verAplic><chNFe>31130605633253000205550010000002571000169370</chNFe><dhRecbto>2013-06-14T09:01:24</dhRecbto><nProt>131131126789086</nProt><digVal>9WsoFBTh8atNnEZJn45m83jRBpM=</digVal><cStat>100</cStat><xMotivo>Autorizado o uso da NF-e</xMotivo></infProt></protNFe></nfeProc>
    at java.net.URL.<init>(Unknown Source)
    at java.net.URL.<init>(Unknown Source)
    at java.net.URL.<init>(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLVersionDetector.determineDocVersion(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source)
    at javax.xml.parsers.DocumentBuilder.parse(Unknown Source)
    at com.nfehost.util.XmlUtil.xmlVersion(XmlUtil.java:34)
    at com.nfehost.service.processadora.Processadora.main(Processadora.java:13)

I want to pass a string but I´m getting a error, if a pass a file, everything works.

How can I parse a String source from a xml file?

My xml have a namespace

Answer 1

The method DocumentBuilder#parse(String) that you are using expects the URI of an XML source (eg file or HTTP URI), that holds the XML content, not the XML content itself.

If you really want to pass your XML content as a String , consider passing an InputSource wrapped around a StringReader to DocumentBuilder#parse(InputSource) :

documentBuilder.parse(new InputSource(new StringReader(source)));