public Process launch(LaunchParameters launchParameters) throws IOException { if (config.isSkipLinking()) { throw new IllegalStateException("Cannot skip linking if target should be run"); } // Add -rvm:log=warn to command line arguments if no logging level has been set explicitly boolean add = true; for (String arg : launchParameters.getArguments()) { if (arg.startsWith("-rvm:log=")) { add = false; break; } } if (add) { List<String> args = new ArrayList<String>(launchParameters.getArguments()); args.add(0, "-rvm:log=warn"); launchParameters.setArguments(args); } return doLaunch(launchParameters); }