private static boolean installSlf4jBridgeHandler()

in src/main/java/org/apache/sling/commons/log/logback/internal/LogbackManager.java [413:438]

• 21 lines of code
• 4 McCabe index (conditional complexity)

    private static boolean installSlf4jBridgeHandler(BundleContext bundleContext){
        // SLING-2373
        if (Boolean.parseBoolean(bundleContext.getProperty(JUL_SUPPORT))) {
            // In config one must enable the LevelChangePropagator
            // http://logback.qos.ch/manual/configuration.html#LevelChangePropagator
            // make sure configuration is empty unless explicitly set
            if (System.getProperty("java.util.logging.config.file") == null
                    && System.getProperty("java.util.logging.config.class") == null) {
                final Thread ct = Thread.currentThread();
                final ClassLoader old = ct.getContextClassLoader();
                try {
                    ct.setContextClassLoader(LogbackManager.class.getClassLoader());
                    System.setProperty("java.util.logging.config.class",
                            DummyLogManagerConfiguration.class.getName());
                    java.util.logging.LogManager.getLogManager().reset();
                } finally {
                    ct.setContextClassLoader(old);
                    System.clearProperty("java.util.logging.config.class");
                }
            }

            SLF4JBridgeHandler.install();
            return true;
        }
        return false;
    }