Seems to be syntax errors in the new drs.dtd which came with 8u60 and was
published here:
http://www.oracle.com/technetwork/java/javase/8u60-relnotes-2620227.html

It seems this would be correct (ATTLIST instead of ATTRIBUTE, parenthesis
behind id, element name before permission, version and force of the action
element):


<!ELEMENT ruleset (rule*)>
<!ATTLIST ruleset href CDATA #IMPLIED>
<!ATTLIST ruleset version CDATA #REQUIRED>

<!ELEMENT rule (id, action)>

<!ELEMENT id (certificate?, checksum?)>
<!ATTLIST id title CDATA #IMPLIED>
<!ATTLIST id location CDATA #IMPLIED>

<!ELEMENT certificate EMPTY>
<!ATTLIST certificate algorithm CDATA #IMPLIED>
<!ATTLIST certificate hash CDATA #REQUIRED>

<!ELEMENT checksum EMPTY>
<!ATTLIST checksum algorithm CDATA #IMPLIED>
<!ATTLIST checksum hash CDATA #REQUIRED>

<!ELEMENT action (message?)>
<!ATTLIST action permission (run | block | default) #REQUIRED>
<!ATTLIST action version CDATA #IMPLIED>
<!ATTLIST action force (true|false) "false">

<!ELEMENT message (#PCDATA)>
<!ATTLIST message locale CDATA #IMPLIED>