src/org/apache/xerces/parsers/AbstractSAXParser.java [1214:1372]:
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                locatorImpl.setPublicId(e.getPublicId());
                locatorImpl.setSystemId(e.getExpandedSystemId());
                locatorImpl.setLineNumber(e.getLineNumber());
                locatorImpl.setColumnNumber(e.getColumnNumber());
                throw (ex == null) ? 
                        new SAXParseException(e.getMessage(), locatorImpl) : 
                        new SAXParseException(e.getMessage(), locatorImpl, ex);
            }
            if (ex instanceof SAXException) {
                // why did we create an XMLParseException?
                throw (SAXException)ex;
            }
            if (ex instanceof IOException) {
                throw (IOException)ex;
            }
            throw new SAXException(ex);
        }
        catch (XNIException e) {
            Exception ex = e.getException();
            if (ex == null) {
                throw new SAXException(e.getMessage());
            }
            if (ex instanceof SAXException) {
                throw (SAXException)ex;
            }
            if (ex instanceof IOException) {
                throw (IOException)ex;
            }
            throw new SAXException(ex);
        }

    } // parse(InputSource)

    /**
     * Sets the resolver used to resolve external entities. The EntityResolver
     * interface supports resolution of public and system identifiers.
     *
     * @param resolver The new entity resolver. Passing a null value will
     *                 uninstall the currently installed resolver.
     */
    public void setEntityResolver(EntityResolver resolver) {

        try {
            XMLEntityResolver xer = (XMLEntityResolver) fConfiguration.getProperty(ENTITY_RESOLVER);
            if (fUseEntityResolver2 && resolver instanceof EntityResolver2) {
                if (xer instanceof EntityResolver2Wrapper) {
                    EntityResolver2Wrapper er2w = (EntityResolver2Wrapper) xer;
                    er2w.setEntityResolver((EntityResolver2) resolver);
                }
                else {
                    fConfiguration.setProperty(ENTITY_RESOLVER,
                            new EntityResolver2Wrapper((EntityResolver2) resolver));
                }
            }
            else {
                if (xer instanceof EntityResolverWrapper) {
                    EntityResolverWrapper erw = (EntityResolverWrapper) xer;
                    erw.setEntityResolver(resolver);
                }
                else {
                    fConfiguration.setProperty(ENTITY_RESOLVER,
                            new EntityResolverWrapper(resolver));
                }
            }
        }
        catch (XMLConfigurationException e) {
            // do nothing
        }

    } // setEntityResolver(EntityResolver)

    /**
     * Return the current entity resolver.
     *
     * @return The current entity resolver, or null if none
     *         has been registered.
     * @see #setEntityResolver
     */
    public EntityResolver getEntityResolver() {

        EntityResolver entityResolver = null;
        try {
            XMLEntityResolver xmlEntityResolver =
                (XMLEntityResolver)fConfiguration.getProperty(ENTITY_RESOLVER);
            if (xmlEntityResolver != null) {
                if (xmlEntityResolver instanceof EntityResolverWrapper) {
                    entityResolver =
                        ((EntityResolverWrapper) xmlEntityResolver).getEntityResolver();
                }
                else if (xmlEntityResolver instanceof EntityResolver2Wrapper) {
                    entityResolver = 
                        ((EntityResolver2Wrapper) xmlEntityResolver).getEntityResolver();
                }
            }
        }
        catch (XMLConfigurationException e) {
            // do nothing
        }
        return entityResolver;

    } // getEntityResolver():EntityResolver

    /**
     * Allow an application to register an error event handler.
     *
     * <p>If the application does not register an error handler, all
     * error events reported by the SAX parser will be silently
     * ignored; however, normal processing may not continue.  It is
     * highly recommended that all SAX applications implement an
     * error handler to avoid unexpected bugs.</p>
     *
     * <p>Applications may register a new or different handler in the
     * middle of a parse, and the SAX parser must begin using the new
     * handler immediately.</p>
     *
     * @param errorHandler The error handler.
     * @see #getErrorHandler
     */
    public void setErrorHandler(ErrorHandler errorHandler) {

        try {
            XMLErrorHandler xeh = (XMLErrorHandler) fConfiguration.getProperty(ERROR_HANDLER);
            if (xeh instanceof ErrorHandlerWrapper) {
                ErrorHandlerWrapper ehw = (ErrorHandlerWrapper) xeh;
                ehw.setErrorHandler(errorHandler);
            }
            else {
                fConfiguration.setProperty(ERROR_HANDLER,
                        new ErrorHandlerWrapper(errorHandler));
            }
        }
        catch (XMLConfigurationException e) {
            // do nothing
        }

    } // setErrorHandler(ErrorHandler)

    /**
     * Return the current error handler.
     *
     * @return The current error handler, or null if none
     *         has been registered.
     * @see #setErrorHandler
     */
    public ErrorHandler getErrorHandler() {

        ErrorHandler errorHandler = null;
        try {
            XMLErrorHandler xmlErrorHandler =
                (XMLErrorHandler)fConfiguration.getProperty(ERROR_HANDLER);
            if (xmlErrorHandler != null &&
                xmlErrorHandler instanceof ErrorHandlerWrapper) {
                errorHandler = ((ErrorHandlerWrapper)xmlErrorHandler).getErrorHandler();
            }
        }
        catch (XMLConfigurationException e) {
            // do nothing
        }
        return errorHandler;
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src/org/apache/xerces/parsers/DOMParser.java [240:400]:
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                locatorImpl.setPublicId(e.getPublicId());
                locatorImpl.setSystemId(e.getExpandedSystemId());
                locatorImpl.setLineNumber(e.getLineNumber());
                locatorImpl.setColumnNumber(e.getColumnNumber());
                throw (ex == null) ? 
                        new SAXParseException(e.getMessage(), locatorImpl) : 
                        new SAXParseException(e.getMessage(), locatorImpl, ex);
            }
            if (ex instanceof SAXException) {
                // why did we create an XMLParseException?
                throw (SAXException)ex;
            }
            if (ex instanceof IOException) {
                throw (IOException)ex;
            }
            throw new SAXException(ex);
        }
        catch (XNIException e) {
            Exception ex = e.getException();
            if (ex == null) {
                throw new SAXException(e.getMessage());
            }
            if (ex instanceof SAXException) {
                throw (SAXException)ex;
            }
            if (ex instanceof IOException) {
                throw (IOException)ex;
            }
            throw new SAXException(ex);
        }

    } // parse(InputSource)

    /**
     * Sets the resolver used to resolve external entities. The EntityResolver
     * interface supports resolution of public and system identifiers.
     *
     * @param resolver The new entity resolver. Passing a null value will
     *                 uninstall the currently installed resolver.
     */
    public void setEntityResolver(EntityResolver resolver) {

        try {
            XMLEntityResolver xer = (XMLEntityResolver) fConfiguration.getProperty(ENTITY_RESOLVER);
            if (fUseEntityResolver2 && resolver instanceof EntityResolver2) {
                if (xer instanceof EntityResolver2Wrapper) {
                    EntityResolver2Wrapper er2w = (EntityResolver2Wrapper) xer;
                    er2w.setEntityResolver((EntityResolver2) resolver);
                }
                else {
                    fConfiguration.setProperty(ENTITY_RESOLVER,
                            new EntityResolver2Wrapper((EntityResolver2) resolver));
                }
            }
            else {
                if (xer instanceof EntityResolverWrapper) {
                    EntityResolverWrapper erw = (EntityResolverWrapper) xer;
                    erw.setEntityResolver(resolver);
                }
                else {
                    fConfiguration.setProperty(ENTITY_RESOLVER,
                            new EntityResolverWrapper(resolver));
                }
            }
        }
        catch (XMLConfigurationException e) {
            // do nothing
        }

    } // setEntityResolver(EntityResolver)

    /**
     * Return the current entity resolver.
     *
     * @return The current entity resolver, or null if none
     *         has been registered.
     * @see #setEntityResolver
     */
    public EntityResolver getEntityResolver() {

        EntityResolver entityResolver = null;
        try {
            XMLEntityResolver xmlEntityResolver =
                (XMLEntityResolver)fConfiguration.getProperty(ENTITY_RESOLVER);
            if (xmlEntityResolver != null) {
                if (xmlEntityResolver instanceof EntityResolverWrapper) {
                    entityResolver =
                        ((EntityResolverWrapper) xmlEntityResolver).getEntityResolver();
                }
                else if (xmlEntityResolver instanceof EntityResolver2Wrapper) {
                    entityResolver = 
                        ((EntityResolver2Wrapper) xmlEntityResolver).getEntityResolver();
                }
            }
        }
        catch (XMLConfigurationException e) {
            // do nothing
        }
        return entityResolver;

    } // getEntityResolver():EntityResolver

    /**
     * Allow an application to register an error event handler.
     *
     * <p>If the application does not register an error handler, all
     * error events reported by the SAX parser will be silently
     * ignored; however, normal processing may not continue.  It is
     * highly recommended that all SAX applications implement an
     * error handler to avoid unexpected bugs.</p>
     *
     * <p>Applications may register a new or different handler in the
     * middle of a parse, and the SAX parser must begin using the new
     * handler immediately.</p>
     *
     * @param errorHandler The error handler.
     * @exception java.lang.NullPointerException If the handler
     *            argument is null.
     * @see #getErrorHandler
     */
    public void setErrorHandler(ErrorHandler errorHandler) {

        try {
            XMLErrorHandler xeh = (XMLErrorHandler) fConfiguration.getProperty(ERROR_HANDLER);
            if (xeh instanceof ErrorHandlerWrapper) {
                ErrorHandlerWrapper ehw = (ErrorHandlerWrapper) xeh;
                ehw.setErrorHandler(errorHandler);
            }
            else {
                fConfiguration.setProperty(ERROR_HANDLER,
                        new ErrorHandlerWrapper(errorHandler));
            }
        }
        catch (XMLConfigurationException e) {
            // do nothing
        }

    } // setErrorHandler(ErrorHandler)

    /**
     * Return the current error handler.
     *
     * @return The current error handler, or null if none
     *         has been registered.
     * @see #setErrorHandler
     */
    public ErrorHandler getErrorHandler() {

        ErrorHandler errorHandler = null;
        try {
            XMLErrorHandler xmlErrorHandler =
                (XMLErrorHandler)fConfiguration.getProperty(ERROR_HANDLER);
            if (xmlErrorHandler != null &&
                xmlErrorHandler instanceof ErrorHandlerWrapper) {
                errorHandler = ((ErrorHandlerWrapper)xmlErrorHandler).getErrorHandler();
            }
        }
        catch (XMLConfigurationException e) {
            // do nothing
        }
        return errorHandler;
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