public static boolean isAssignable()

in src/main/java/org/apache/commons/lang3/ClassUtils.java [1244:1300]
54 lines of code
31 McCabe index (conditional complexity)

    public static boolean isAssignable(Class<?> cls, final Class<?> toClass, final boolean autoboxing) {
        if (toClass == null) {
            return false;
        }
        // have to check for null, as isAssignableFrom doesn't
        if (cls == null) {
            return !toClass.isPrimitive();
        }
        // autoboxing:
        if (autoboxing) {
            if (cls.isPrimitive() && !toClass.isPrimitive()) {
                cls = primitiveToWrapper(cls);
                if (cls == null) {
                    return false;
                }
            }
            if (toClass.isPrimitive() && !cls.isPrimitive()) {
                cls = wrapperToPrimitive(cls);
                if (cls == null) {
                    return false;
                }
            }
        }
        if (cls.equals(toClass)) {
            return true;
        }
        if (cls.isPrimitive()) {
            if (!toClass.isPrimitive()) {
                return false;
            }
            if (Integer.TYPE.equals(cls)) {
                return Long.TYPE.equals(toClass) || Float.TYPE.equals(toClass) || Double.TYPE.equals(toClass);
            }
            if (Long.TYPE.equals(cls)) {
                return Float.TYPE.equals(toClass) || Double.TYPE.equals(toClass);
            }
            if (Boolean.TYPE.equals(cls)) {
                return false;
            }
            if (Double.TYPE.equals(cls)) {
                return false;
            }
            if (Float.TYPE.equals(cls)) {
                return Double.TYPE.equals(toClass);
            }
            if (Character.TYPE.equals(cls)  || Short.TYPE.equals(cls)) {
                return Integer.TYPE.equals(toClass) || Long.TYPE.equals(toClass) || Float.TYPE.equals(toClass) || Double.TYPE.equals(toClass);
            }
            if (Byte.TYPE.equals(cls)) {
                return Short.TYPE.equals(toClass) || Integer.TYPE.equals(toClass) || Long.TYPE.equals(toClass) || Float.TYPE.equals(toClass)
                    || Double.TYPE.equals(toClass);
            }
            // should never get here
            return false;
        }
        return toClass.isAssignableFrom(cls);
    }