boolean () { try { final GeneralCommandLine cmdLine = new GeneralCommandLine("pkill", TB_SERVER_PROCESS) .withParentEnvironmentType(GeneralCommandLine.ParentEnvironmentType.SYSTEM); final ProcessOutput out = ExecUtil.sudoAndGetOutput(cmdLine, ""); return out.getStderr().isEmpty(); } catch (ExecutionException | IOException e) { LOG.debug(e); } return false; }