I used fastdebug build to get control flow graph, ran this command:
java -XX:+PrintCFGToFile Test
but no flie with printed information found... I used both Ubuntu and Windows. After giving up I built JDK from sources (OpenJDK sources, but should not be different in options processing), but no success, again the same, it prints "VM option '+PrintCFGToFile'" but no file created in the directory with class executed, nor in JDK bin directory... I looked for "output.cfg" (somewhere was written that this is the name of file), nothing found... What's wrong? Should any additional option be specified? How and where to get this file?