src/share/jaxws_classes/com/sun/xml/internal/ws/util/pipe/AbstractSchemaValidationTube.java

Tue, 09 Apr 2013 14:51:13 +0100

author
alanb
date
Tue, 09 Apr 2013 14:51:13 +0100
changeset 368
0989ad8c0860
parent 286
f50545b5e2f1
child 397
b99d7e355d4b
permissions
-rw-r--r--

8010393: Update JAX-WS RI to 2.2.9-b12941
Reviewed-by: alanb, erikj
Contributed-by: miroslav.kos@oracle.com, martin.grebac@oracle.com

     1 /*
     2  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.  Oracle designates this
     8  * particular file as subject to the "Classpath" exception as provided
     9  * by Oracle in the LICENSE file that accompanied this code.
    10  *
    11  * This code is distributed in the hope that it will be useful, but WITHOUT
    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    14  * version 2 for more details (a copy is included in the LICENSE file that
    15  * accompanied this code).
    16  *
    17  * You should have received a copy of the GNU General Public License version
    18  * 2 along with this work; if not, write to the Free Software Foundation,
    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    20  *
    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    22  * or visit www.oracle.com if you need additional information or have any
    23  * questions.
    24  */
    26 package com.sun.xml.internal.ws.util.pipe;
    28 import com.sun.istack.internal.NotNull;
    29 import com.sun.istack.internal.Nullable;
    30 import com.sun.xml.internal.stream.buffer.XMLStreamBufferResult;
    31 import com.sun.xml.internal.ws.api.WSBinding;
    32 import com.sun.xml.internal.ws.api.message.Message;
    33 import com.sun.xml.internal.ws.api.message.Packet;
    34 import com.sun.xml.internal.ws.api.pipe.Tube;
    35 import com.sun.xml.internal.ws.api.pipe.TubeCloner;
    36 import com.sun.xml.internal.ws.api.pipe.helper.AbstractFilterTubeImpl;
    37 import com.sun.xml.internal.ws.api.server.DocumentAddressResolver;
    38 import com.sun.xml.internal.ws.api.server.SDDocument;
    39 import com.sun.xml.internal.ws.api.server.SDDocumentSource;
    40 import com.sun.xml.internal.ws.developer.SchemaValidationFeature;
    41 import com.sun.xml.internal.ws.developer.ValidationErrorHandler;
    42 import com.sun.xml.internal.ws.server.SDDocumentImpl;
    43 import com.sun.xml.internal.ws.util.ByteArrayBuffer;
    44 import com.sun.xml.internal.ws.util.xml.XmlUtil;
    45 import com.sun.xml.internal.ws.wsdl.SDDocumentResolver;
    46 import com.sun.xml.internal.ws.wsdl.parser.WSDLConstants;
    47 import org.w3c.dom.*;
    48 import org.w3c.dom.ls.LSInput;
    49 import org.w3c.dom.ls.LSResourceResolver;
    50 import org.xml.sax.SAXException;
    51 import org.xml.sax.helpers.NamespaceSupport;
    53 import javax.xml.XMLConstants;
    54 import javax.xml.namespace.QName;
    55 import javax.xml.transform.Source;
    56 import javax.xml.transform.Transformer;
    57 import javax.xml.transform.TransformerException;
    58 import javax.xml.transform.dom.DOMResult;
    59 import javax.xml.transform.dom.DOMSource;
    60 import javax.xml.transform.stream.StreamSource;
    61 import javax.xml.validation.SchemaFactory;
    62 import javax.xml.validation.Validator;
    63 import javax.xml.ws.WebServiceException;
    64 import java.io.IOException;
    65 import java.io.InputStream;
    66 import java.io.Reader;
    67 import java.io.StringReader;
    68 import java.net.MalformedURLException;
    69 import java.net.URI;
    70 import java.net.URL;
    71 import java.util.*;
    72 import java.util.logging.Level;
    73 import java.util.logging.Logger;
    75 /**
    76  * {@link Tube} that does the schema validation.
    77  *
    78  * @author Jitendra Kotamraju
    79  */
    80 public abstract class AbstractSchemaValidationTube extends AbstractFilterTubeImpl {
    82     private static final Logger LOGGER = Logger.getLogger(AbstractSchemaValidationTube.class.getName());
    84     protected final WSBinding binding;
    85     protected final SchemaValidationFeature feature;
    86     protected final DocumentAddressResolver resolver = new ValidationDocumentAddressResolver();
    87     protected final SchemaFactory sf;
    89     public AbstractSchemaValidationTube(WSBinding binding, Tube next) {
    90         super(next);
    91         this.binding = binding;
    92         feature = binding.getFeature(SchemaValidationFeature.class);
    93         sf = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
    94     }
    96     protected AbstractSchemaValidationTube(AbstractSchemaValidationTube that, TubeCloner cloner) {
    97         super(that, cloner);
    98         this.binding = that.binding;
    99         this.feature = that.feature;
   100         this.sf = that.sf;
   101     }
   103     protected abstract Validator getValidator();
   105     protected abstract boolean isNoValidation();
   107     private static class ValidationDocumentAddressResolver implements DocumentAddressResolver {
   109         @Nullable
   110         @Override
   111         public String getRelativeAddressFor(@NotNull SDDocument current, @NotNull SDDocument referenced) {
   112             LOGGER.log(Level.FINE, "Current = {0} resolved relative={1}", new Object[]{current.getURL(), referenced.getURL()});
   113             return referenced.getURL().toExternalForm();
   114         }
   115     }
   117     private Document createDOM(SDDocument doc) {
   118         // Get infoset
   119         ByteArrayBuffer bab = new ByteArrayBuffer();
   120         try {
   121             doc.writeTo(null, resolver, bab);
   122         } catch (IOException ioe) {
   123             throw new WebServiceException(ioe);
   124         }
   126         // Convert infoset to DOM
   127         Transformer trans = XmlUtil.newTransformer();
   128         Source source = new StreamSource(bab.newInputStream(), null); //doc.getURL().toExternalForm());
   129         DOMResult result = new DOMResult();
   130         try {
   131             trans.transform(source, result);
   132         } catch(TransformerException te) {
   133             throw new WebServiceException(te);
   134         }
   135         return (Document)result.getNode();
   136     }
   138     protected class MetadataResolverImpl implements SDDocumentResolver, LSResourceResolver {
   140         // systemID --> SDDocument
   141         final Map<String, SDDocument> docs = new HashMap<String, SDDocument>();
   143         // targetnamespace --> SDDocument
   144         final Map<String, SDDocument> nsMapping = new HashMap<String, SDDocument>();
   146         public MetadataResolverImpl() {
   147         }
   149         public MetadataResolverImpl(Iterable<SDDocument> it) {
   150             for(SDDocument doc : it) {
   151                 if (doc.isSchema()) {
   152                     docs.put(doc.getURL().toExternalForm(), doc);
   153                     nsMapping.put(((SDDocument.Schema)doc).getTargetNamespace(), doc);
   154                 }
   155             }
   156         }
   158         void addSchema(Source schema) {
   159             assert schema.getSystemId() != null;
   161             String systemId = schema.getSystemId();
   162             try {
   163                 XMLStreamBufferResult xsbr = XmlUtil.identityTransform(schema, new XMLStreamBufferResult());
   164                 SDDocumentSource sds = SDDocumentSource.create(new URL(systemId), xsbr.getXMLStreamBuffer());
   165                 SDDocument sdoc = SDDocumentImpl.create(sds, new QName(""), new QName(""));
   166                 docs.put(systemId, sdoc);
   167                 nsMapping.put(((SDDocument.Schema)sdoc).getTargetNamespace(), sdoc);
   168             } catch(Exception ex) {
   169                 LOGGER.log(Level.WARNING, "Exception in adding schemas to resolver", ex);
   170             }
   171         }
   173         void addSchemas(Collection<? extends Source> schemas) {
   174             for(Source src :  schemas) {
   175                 addSchema(src);
   176             }
   177         }
   179         @Override
   180         public SDDocument resolve(String systemId) {
   181             SDDocument sdi = docs.get(systemId);
   182             if (sdi == null) {
   183                 SDDocumentSource sds;
   184                 try {
   185                     sds = SDDocumentSource.create(new URL(systemId));
   186                 } catch(MalformedURLException e) {
   187                     throw new WebServiceException(e);
   188                 }
   189                 sdi = SDDocumentImpl.create(sds, new QName(""), new QName(""));
   190                 docs.put(systemId, sdi);
   191             }
   192             return sdi;
   193         }
   195         @Override
   196         public LSInput resolveResource(String type, String namespaceURI, String publicId, final String systemId, final String baseURI) {
   197             if (LOGGER.isLoggable(Level.FINE)) {
   198                 LOGGER.log(Level.FINE, "type={0} namespaceURI={1} publicId={2} systemId={3} baseURI={4}", new Object[]{type, namespaceURI, publicId, systemId, baseURI});
   199             }
   200             try {
   201                 final SDDocument doc;
   202                 if (systemId == null) {
   203                     doc = nsMapping.get(namespaceURI);
   204                 } else {
   205                     URI rel = (baseURI != null)
   206                         ? new URI(baseURI).resolve(systemId)
   207                         : new URI(systemId);
   208                     doc = docs.get(rel.toString());
   209                 }
   210                 if (doc != null) {
   211                     return new LSInput() {
   213                         @Override
   214                         public Reader getCharacterStream() {
   215                             return null;
   216                         }
   218                         @Override
   219                         public void setCharacterStream(Reader characterStream) {
   220                             throw new UnsupportedOperationException();
   221                         }
   223                         @Override
   224                         public InputStream getByteStream() {
   225                             ByteArrayBuffer bab = new ByteArrayBuffer();
   226                             try {
   227                                 doc.writeTo(null, resolver, bab);
   228                             } catch (IOException ioe) {
   229                                 throw new WebServiceException(ioe);
   230                             }
   231                             return bab.newInputStream();
   232                         }
   234                         @Override
   235                         public void setByteStream(InputStream byteStream) {
   236                             throw new UnsupportedOperationException();
   237                         }
   239                         @Override
   240                         public String getStringData() {
   241                             return null;
   242                         }
   244                         @Override
   245                         public void setStringData(String stringData) {
   246                             throw new UnsupportedOperationException();
   247                         }
   249                         @Override
   250                         public String getSystemId() {
   251                             return doc.getURL().toExternalForm();
   252                         }
   254                         @Override
   255                         public void setSystemId(String systemId) {
   256                             throw new UnsupportedOperationException();
   257                         }
   259                         @Override
   260                         public String getPublicId() {
   261                             return null;
   262                         }
   264                         @Override
   265                         public void setPublicId(String publicId) {
   266                             throw new UnsupportedOperationException();
   267                         }
   269                         @Override
   270                         public String getBaseURI() {
   271                             return doc.getURL().toExternalForm();
   272                         }
   274                         @Override
   275                         public void setBaseURI(String baseURI) {
   276                             throw new UnsupportedOperationException();
   277                         }
   279                         @Override
   280                         public String getEncoding() {
   281                             return null;
   282                         }
   284                         @Override
   285                         public void setEncoding(String encoding) {
   286                             throw new UnsupportedOperationException();
   287                         }
   289                         @Override
   290                         public boolean getCertifiedText() {
   291                             return false;
   292                         }
   294                         @Override
   295                         public void setCertifiedText(boolean certifiedText) {
   296                             throw new UnsupportedOperationException();
   297                         }
   298                     };
   299                 }
   300             } catch(Exception e) {
   301                 LOGGER.log(Level.WARNING, "Exception in LSResourceResolver impl", e);
   302             }
   303             if (LOGGER.isLoggable(Level.FINE)) {
   304                 LOGGER.log(Level.FINE, "Don''t know about systemId={0} baseURI={1}", new Object[]{systemId, baseURI});
   305             }
   306             return null;
   307         }
   309     }
   311     private void updateMultiSchemaForTns(String tns, String systemId, Map<String, List<String>> schemas) {
   312         List<String> docIdList = schemas.get(tns);
   313         if (docIdList == null) {
   314             docIdList = new ArrayList<String>();
   315             schemas.put(tns, docIdList);
   316         }
   317         docIdList.add(systemId);
   318     }
   320     /*
   321      * Using the following algorithm described in the xerces discussion thread:
   322      *
   323      * "If you're synthesizing schema documents to glue together the ones in
   324      * the WSDL then you may not even need to use "honour-all-schemaLocations".
   325      * Create a schema document for each namespace with <xs:include>s
   326      * (for each schema document in the WSDL with that target namespace)
   327      * and then combine those together with <xs:import>s for each of those
   328      * namespaces in a "master" schema document.
   329      *
   330      * That should work with any schema processor, not just those which
   331      * honour multiple imports for the same namespace."
   332      */
   333     protected Source[] getSchemaSources(Iterable<SDDocument> docs, MetadataResolverImpl mdresolver) {
   334         // All schema fragments in WSDLs are put inlinedSchemas
   335         // systemID --> DOMSource
   336         Map<String, DOMSource> inlinedSchemas = new HashMap<String, DOMSource>();
   338         // Consolidates all the schemas(inlined and external) for a tns
   339         // tns --> list of systemId
   340         Map<String, List<String>> multiSchemaForTns = new HashMap<String, List<String>>();
   342         for(SDDocument sdoc: docs) {
   343             if (sdoc.isWSDL()) {
   344                 Document dom = createDOM(sdoc);
   345                 // Get xsd:schema node from WSDL's DOM
   346                 addSchemaFragmentSource(dom, sdoc.getURL().toExternalForm(), inlinedSchemas);
   347             } else if (sdoc.isSchema()) {
   348                 updateMultiSchemaForTns(((SDDocument.Schema)sdoc).getTargetNamespace(), sdoc.getURL().toExternalForm(), multiSchemaForTns);
   349             }
   350         }
   351         if (LOGGER.isLoggable(Level.FINE)) {
   352             LOGGER.log(Level.FINE, "WSDL inlined schema fragment documents(these are used to create a pseudo schema) = {0}", inlinedSchemas.keySet());
   353         }
   354         for(DOMSource src: inlinedSchemas.values()) {
   355             String tns = getTargetNamespace(src);
   356             updateMultiSchemaForTns(tns, src.getSystemId(), multiSchemaForTns);
   357         }
   359         if (multiSchemaForTns.isEmpty()) {
   360             return new Source[0];   // WSDL doesn't have any schema fragments
   361         } else if (multiSchemaForTns.size() == 1 && multiSchemaForTns.values().iterator().next().size() == 1) {
   362             // It must be a inlined schema, otherwise there would be at least two schemas
   363             String systemId = multiSchemaForTns.values().iterator().next().get(0);
   364             return new Source[] {inlinedSchemas.get(systemId)};
   365         }
   367         // need to resolve these inlined schema fragments
   368         mdresolver.addSchemas(inlinedSchemas.values());
   370         // If there are multiple schema fragments for the same tns, create a
   371         // pseudo schema for that tns by using <xsd:include> of those.
   372         // tns --> systemId of a pseudo schema document (consolidated for that tns)
   373         Map<String, String> oneSchemaForTns = new HashMap<String, String>();
   374         int i = 0;
   375         for(Map.Entry<String, List<String>> e: multiSchemaForTns.entrySet()) {
   376             String systemId;
   377             List<String> sameTnsSchemas = e.getValue();
   378             if (sameTnsSchemas.size() > 1) {
   379                 // SDDocumentSource should be changed to take String systemId
   380                 // String pseudoSystemId = "urn:x-jax-ws-include-"+i++;
   381                 systemId = "file:x-jax-ws-include-"+i++;
   382                 Source src = createSameTnsPseudoSchema(e.getKey(), sameTnsSchemas, systemId);
   383                 mdresolver.addSchema(src);
   384             } else {
   385                 systemId = sameTnsSchemas.get(0);
   386             }
   387             oneSchemaForTns.put(e.getKey(), systemId);
   388         }
   390         // create a master pseudo schema with all the different tns
   391         Source pseudoSchema = createMasterPseudoSchema(oneSchemaForTns);
   392         return new Source[] { pseudoSchema };
   393     }
   395     private @Nullable void addSchemaFragmentSource(Document doc, String systemId, Map<String, DOMSource> map) {
   396         Element e = doc.getDocumentElement();
   397         assert e.getNamespaceURI().equals(WSDLConstants.NS_WSDL);
   398         assert e.getLocalName().equals("definitions");
   400         NodeList typesList = e.getElementsByTagNameNS(WSDLConstants.NS_WSDL, "types");
   401         for(int i=0; i < typesList.getLength(); i++) {
   402             NodeList schemaList = ((Element)typesList.item(i)).getElementsByTagNameNS(WSDLConstants.NS_XMLNS, "schema");
   403             for(int j=0; j < schemaList.getLength(); j++) {
   404                 Element elem = (Element)schemaList.item(j);
   405                 NamespaceSupport nss = new NamespaceSupport();
   406                 // Doing this because transformer is not picking up inscope namespaces
   407                 // why doesn't transformer pickup the inscope namespaces ??
   408                 buildNamespaceSupport(nss, elem);
   409                 patchDOMFragment(nss, elem);
   410                 String docId = systemId+"#schema"+j;
   411                 map.put(docId, new DOMSource(elem, docId));
   412             }
   413         }
   414     }
   417     /*
   418      * Recursively visit ancestors and build up {@link org.xml.sax.helpers.NamespaceSupport} object.
   419      */
   420     private void buildNamespaceSupport(NamespaceSupport nss, Node node) {
   421         if (node==null || node.getNodeType()!=Node.ELEMENT_NODE) {
   422             return;
   423         }
   425         buildNamespaceSupport( nss, node.getParentNode() );
   427         nss.pushContext();
   428         NamedNodeMap atts = node.getAttributes();
   429         for( int i=0; i<atts.getLength(); i++ ) {
   430             Attr a = (Attr)atts.item(i);
   431             if( "xmlns".equals(a.getPrefix()) ) {
   432                 nss.declarePrefix( a.getLocalName(), a.getValue() );
   433                 continue;
   434             }
   435             if( "xmlns".equals(a.getName()) ) {
   436                 nss.declarePrefix( "", a.getValue() );
   437                 //continue;
   438             }
   439         }
   440     }
   442     /**
   443      * Adds inscope namespaces as attributes to  <xsd:schema> fragment nodes.
   444      *
   445      * @param nss namespace context info
   446      * @param elem that is patched with inscope namespaces
   447      */
   448     private @Nullable void patchDOMFragment(NamespaceSupport nss, Element elem) {
   449         NamedNodeMap atts = elem.getAttributes();
   450         for( Enumeration en = nss.getPrefixes(); en.hasMoreElements(); ) {
   451             String prefix = (String)en.nextElement();
   453             for( int i=0; i<atts.getLength(); i++ ) {
   454                 Attr a = (Attr)atts.item(i);
   455                 if (!"xmlns".equals(a.getPrefix()) || !a.getLocalName().equals(prefix)) {
   456                     if (LOGGER.isLoggable(Level.FINE)) {
   457                         LOGGER.log(Level.FINE, "Patching with xmlns:{0}={1}", new Object[]{prefix, nss.getURI(prefix)});
   458                     }
   459                     elem.setAttributeNS(XMLConstants.XMLNS_ATTRIBUTE_NS_URI, "xmlns:"+prefix, nss.getURI(prefix));
   460                 }
   461             }
   462         }
   463     }
   465     /*
   466      * Creates a pseudo schema for the WSDL schema fragments that have the same
   467      * targetNamespace.
   468      *
   469      * <xsd:schema targetNamespace="X">
   470      *   <xsd:include schemaLocation="Y1"/>
   471      *   <xsd:include schemaLocation="Y2"/>
   472      * </xsd:schema>
   473      *
   474      * @param tns targetNamespace of the the schema documents
   475      * @param docs collection of systemId for the schema documents that have the
   476      *        same tns, the collection must have more than one document
   477      * @param psuedoSystemId for the created pseudo schema
   478      * @return Source of pseudo schema that can be used multiple times
   479      */
   480     private @Nullable Source createSameTnsPseudoSchema(String tns, Collection<String> docs, String pseudoSystemId) {
   481         assert docs.size() > 1;
   483         final StringBuilder sb = new StringBuilder("<xsd:schema xmlns:xsd='http://www.w3.org/2001/XMLSchema'");
   484         if (!tns.equals("")) {
   485             sb.append(" targetNamespace='").append(tns).append("'");
   486         }
   487         sb.append(">\n");
   488         for(String systemId : docs) {
   489             sb.append("<xsd:include schemaLocation='").append(systemId).append("'/>\n");
   490         }
   491         sb.append("</xsd:schema>\n");
   492         if (LOGGER.isLoggable(Level.FINE)) {
   493             LOGGER.log(Level.FINE, "Pseudo Schema for the same tns={0}is {1}", new Object[]{tns, sb});
   494         }
   496         // override getReader() so that the same source can be used multiple times
   497         return new StreamSource(pseudoSystemId) {
   498             @Override
   499             public Reader getReader() {
   500                 return new StringReader(sb.toString());
   501             }
   502         };
   503     }
   505     /*
   506      * Creates a master pseudo schema importing all WSDL schema fragments with
   507      * different tns+pseudo schema for same tns.
   508      * <xsd:schema targetNamespace="urn:x-jax-ws-master">
   509      *   <xsd:import schemaLocation="Y1" namespace="X1"/>
   510      *   <xsd:import schemaLocation="Y2" namespace="X2"/>
   511      * </xsd:schema>
   512      *
   513      * @param pseudo a map(tns-->systemId) of schema documents
   514      * @return Source of pseudo schema that can be used multiple times
   515      */
   516     private Source createMasterPseudoSchema(Map<String, String> docs) {
   517         final StringBuilder sb = new StringBuilder("<xsd:schema xmlns:xsd='http://www.w3.org/2001/XMLSchema' targetNamespace='urn:x-jax-ws-master'>\n");
   518         for(Map.Entry<String, String> e : docs.entrySet()) {
   519             String systemId = e.getValue();
   520             String ns = e.getKey();
   521             sb.append("<xsd:import schemaLocation='").append(systemId).append("'");
   522             if (!ns.equals("")) {
   523                 sb.append(" namespace='").append(ns).append("'");
   524             }
   525             sb.append("/>\n");
   526         }
   527         sb.append("</xsd:schema>");
   528         if (LOGGER.isLoggable(Level.FINE)) {
   529             LOGGER.log(Level.FINE, "Master Pseudo Schema = {0}", sb);
   530         }
   532         // override getReader() so that the same source can be used multiple times
   533         return new StreamSource("file:x-jax-ws-master-doc") {
   534             @Override
   535             public Reader getReader() {
   536                 return new StringReader(sb.toString());
   537             }
   538         };
   539     }
   541     protected void doProcess(Packet packet) throws SAXException {
   542         getValidator().reset();
   543         Class<? extends ValidationErrorHandler> handlerClass = feature.getErrorHandler();
   544         ValidationErrorHandler handler;
   545         try {
   546             handler = handlerClass.newInstance();
   547         } catch(Exception e) {
   548             throw new WebServiceException(e);
   549         }
   550         handler.setPacket(packet);
   551         getValidator().setErrorHandler(handler);
   552         Message msg = packet.getMessage().copy();
   553         Source source = msg.readPayloadAsSource();
   554         try {
   555             // Validator javadoc allows ONLY SAX, and DOM Sources
   556             // But the impl seems to handle all kinds.
   557             getValidator().validate(source);
   558         } catch(IOException e) {
   559             throw new WebServiceException(e);
   560         }
   561     }
   563     private String getTargetNamespace(DOMSource src) {
   564         Element elem = (Element)src.getNode();
   565         return elem.getAttribute("targetNamespace");
   566     }
   568 //    protected static void printSource(Source src) {
   569 //        try {
   570 //            ByteArrayBuffer bos = new ByteArrayBuffer();
   571 //            StreamResult sr = new StreamResult(bos );
   572 //            Transformer trans = TransformerFactory.newInstance().newTransformer();
   573 //            trans.transform(src, sr);
   574 //            LOGGER.info("**** src ******"+bos.toString());
   575 //            bos.close();
   576 //        } catch(Exception e) {
   577 //            e.printStackTrace();
   578 //        }
   579 //    }
   581 }

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