Example.java

    private static void initializeTerminal() {
        if (!initialized) {
            initialized = true;

            // A system property can be used to override our automatic detection
            Boolean jlineOverride = getOptionalBooleanProperty(JLINE_OVERRIDE_PROPERTY);

            // By default, we disable JLine if there is no terminal attached
            // (e.g. if the program output is redirected to a file or if it's
            // started by some kind of control panel)

            // The same applies to IDEs, they usually provide only a very basic
            // console implementation without support for ANSI escape codes
            // (used for colors) or characters like \r.

            // There are two exceptions:
            //  1. IntelliJ IDEA supports colors and control characters
            //     (We try to detect it using an additional JAR it adds to the classpath)
            //  2. The system property forces the use of JLine.
            boolean dumb = jlineOverride == Boolean.TRUE || System.getProperty("java.class.path").contains("idea_rt.jar");

            if (jlineOverride != Boolean.FALSE) {
                try {
                    terminal = TerminalBuilder.builder().dumb(dumb).build();
                } catch (IllegalStateException e) {
                    // Unless disabled using one of the exceptions above,
                    // JLine throws an exception before creating a dumb terminal
                    // Dumb terminals are used if there is no real terminal attached
                    // to the application.

                    if (LOGGER.isDebugEnabled()) {
                        // Log with stacktrace
                        LOGGER.warn("Disabling terminal, you're running in an unsupported environment.", e);
                    } else {
                        LOGGER.warn("Disabling terminal, you're running in an unsupported environment.");
                    }
                } catch (IOException e) {
                    LOGGER.error("Failed to initialize terminal. Falling back to standard output", e);
                }
            }
        }
    }