public synchronized void close()

in meecrowave-core/src/main/java/org/apache/meecrowave/Meecrowave.java [972:1026]
51 lines of code
12 McCabe index (conditional complexity)

    public synchronized void close() {
        if (tomcat == null) {
            return;
        }
        if (hook != null) {
            Runtime.getRuntime().removeShutdownHook(hook);
            this.hook = null;
        }
        beforeStop();
        if (MeecrowaveContainerLoader.class.isInstance(tomcat.getServer().getParentClassLoader())) {
            try {
                MeecrowaveContainerLoader.class.cast(tomcat.getServer().getParentClassLoader()).close();
            } catch (final IOException e) {
                new LogFacade(Meecrowave.class.getName()).error(e.getMessage(), e);
            }
        }
        try {
            contexts.values().forEach(Runnable::run);
        } finally {
            try {
                tomcat.stop();
                tomcat.destroy();
            } catch (final LifecycleException e) {
                throw new IllegalStateException(e);
            } finally {
                Cxfs.resetDefaultBusIfEquals(clientBus); // after if runnables or listeners trigger CXF
                tomcat = null; // ensure we can call close() N times and not have side effects
                contexts.clear();
                if (clearCatalinaSystemProperties) {
                    Stream.of("catalina.base", "catalina.home").forEach(System::clearProperty);
                }
                if (configuration.isUseLog4j2JulLogManager()) {
                    System.clearProperty("java.util.logging.manager");
                }
                ofNullable(postTask).ifPresent(Runnable::run);
                postTask = null;
                try {
                    if (deleteBase && base != null) {
                        IO.delete(base);
                    }

                    if (ownedTempDir != null) {
                        IO.delete(ownedTempDir);
                    }
                } catch (final IllegalArgumentException /*does not exist from the hook*/ e) {
                    // no-op
                } finally {
                    base = null;

                    // not very important if we can't delete it since next restart will write another value normally
                    ofNullable(configuration.getPidFile()).ifPresent(File::delete);
                }
            }
        }
    }