graph.Graph.main() - Unrecognized character '.' (46)

[maiermic]

INSTALL.txt

Run graph.Graph.main() and verify that a cleanly formatted Java window
displaying a graph appears.

When I run ./run graph.Graph I get:

WARNING: Lexer[6(12)]: Unrecognized character '.'(46) -- ignored
ERROR: Parser[6(16)]: Syntax error
Exception: at [6(16)]: Syntax error
att.grappa.GraphParserException: at [6(16)]: Syntax error
        at att.grappa.Parser.report_error(Parser.java:372)
        at java_cup.runtime.lr_parser.syntax_error(lr_parser.java:395)
        at java_cup.runtime.lr_parser.parse(lr_parser.java:594)
        at graph.gviz.DotViewer.showWindow(DotViewer.java:71)
        at graph.gviz.DotViewer.showWindow(DotViewer.java:64)
        at graph.Graph.launchViewer(Graph.java:624)
        at graph.Graph.launchViewer(Graph.java:605)
        at graph.Graph.main(Graph.java:1268)

I have graphviz version 2.38.0 installed. dot and neato are in my PATH.