The command line:

%jdb TestDriver nonvalidating all com.sun.xml.parser.Parser "Sun
Non-Validating Parser (latest, TR2)" conformance.xml
../../examples/samples/REC-xml-19980210.xml

generates:

Internal exception: java.lang.IllegalArgumentException: Illegal
connector argument: TR2)" conformance.xml
../../examples/samples/REC-xml-19980210.xml
        at
com.sun.tools.example.debug.tty.VMConnection.parseConnectorArgs(VMConnection.java:87)
        at
com.sun.tools.example.debug.tty.VMConnection.<init>(VMConnection.java:121)
        at com.sun.tools.example.debug.tty.Env.init(Env.java:59)
        at com.sun.tools.example.debug.tty.TTY.main(TTY.java:916