CoraXMLImporter requires local copy of DTD

[chiarcos]

Using the latest stable version, the CoraXMLImporter fails because it requires the CoraXML DTD to be located in pepper/cora-xml.dtd.

Requested action: Read DTD from data directory or bundle it with Pepper.

Error log below, using a sample file from https://www.laudatio-repository.org/download/format/20/36/1.0.
Note that cora-xml.dtd is bundled with the data and available in the data directory.

Configuration (template, with $tmp pointing to the data directory, generated using pepper-wrapper):

<?xml version="1.0" encoding="UTF-8"?>
<?xml-model href="https://korpling.german.hu-berlin.de/saltnpepper/pepper/schema/10/pepper.rnc" type="application/relax-ng-compact-syntax" ?>
<pepper-job version="1.0">
        <importer name="'$importer'" path="'$tmp'"/>
        <exporter name="'$exporter'" path="'$tgt'"/>
</pepper-job>

Error log:

Cannot map 'salt:/0/rem/M543-N1' with module 'CoraXMLImporter', because of a mapping result was 'FAILED'.
An exception was thrown by the mapper threads 'Thread[CoraXMLImporter_mapper(salt:/rem/M543-N1),5,CoraXMLImporter_mapperGroup]'. 
org.corpus_tools.pepper.modules.exceptions.PepperModuleXMLResourceException: Cannot read xml-file'file:/home/chiarcos/Desktop/github/powla/experimental/salt/samples/rem/M543-N1.xml', because of a nested exception. 
    at org.corpus_tools.pepper.common.PepperUtil.readXMLResource(PepperUtil.java:661)
    at org.corpus_tools.pepper.impl.PepperMapperImpl.readXMLResource(PepperMapperImpl.java:278)
    at org.corpus_tools.peppermodules.coraXMLModules.CoraXML2SaltMapper.mapSDocument(CoraXML2SaltMapper.java:116)
    at org.corpus_tools.pepper.impl.PepperMapperControllerImpl.map(PepperMapperControllerImpl.java:251)
    at org.corpus_tools.pepper.impl.PepperMapperControllerImpl.run(PepperMapperControllerImpl.java:188)
Caused by: java.io.FileNotFoundException: /home/chiarcos/Desktop/github/pepper-wrapper/pepper/cora-xml.dtd (No such file or directory)
    at java.base/java.io.FileInputStream.open0(Native Method)
    at java.base/java.io.FileInputStream.open(FileInputStream.java:219)
    at java.base/java.io.FileInputStream.<init>(FileInputStream.java:157)
    at java.base/java.io.FileInputStream.<init>(FileInputStream.java:112)
    at java.base/sun.net.www.protocol.file.FileURLConnection.connect(FileURLConnection.java:86)
    at java.base/sun.net.www.protocol.file.FileURLConnection.getInputStream(FileURLConnection.java:184)
    at java.xml/com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(XMLEntityManager.java:652)
    at java.xml/com.sun.org.apache.xerces.internal.impl.XMLEntityManager.startEntity(XMLEntityManager.java:1398)
    at java.xml/com.sun.org.apache.xerces.internal.impl.XMLEntityManager.startDTDEntity(XMLEntityManager.java:1364)
    at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDTDScannerImpl.setInputSource(XMLDTDScannerImpl.java:257)
    at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$DTDDriver.dispatch(XMLDocumentScannerImpl.java:1152)
    at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$DTDDriver.next(XMLDocumentScannerImpl.java:1040)
    at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:943)
    at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:605)
    at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:534)
    at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:888)
    at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:824)
    at java.xml/com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
    at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1216)
    at java.xml/com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:635)
    at org.corpus_tools.pepper.common.PepperUtil.readXMLResource(PepperUtil.java:641)
    ... 4 more