Read all the DTD elements in Java

Question

I have requirement to read all the dtd elements and load in to java list or something. I don't want to validate the elements. All I'm trying to look for is read all the elements in the dtd.

for example :

<?xml version="1.0" encoding="UTF-8"?>
<!ELEMENT TSListing ((TSReference | (TSIdentification, TSFile?)), TSPriorityApplicationIdentification?, (TSName)>
<!ATTLIST TSListing
               dtdVersion CDATA #REQUIRED
               fileName CDATA #IMPLIED
               softwareName CDATA #IMPLIED
               softwareVersion CDATA #IMPLIED
               productionDate CDATA #IMPLIED
               originalFreeTextLanguageCode CDATA #IMPLIED
               nonEnglishFreeTextLanguageCode CDATA #IMPLIED
>

<!ELEMENT TSReference (#PCDATA)>
<!ELEMENT TSIdentification (IPOfficeCode, ApplicationNumberText, FilingDate?)>
<!ELEMENT TSApplicationIdentification (IPOfficeCode, ApplicationNumberText, FilingDate?)>
<!ELEMENT TStName (#PCDATA)>

I want to load this in to some list or map ?