src/main/java/org/apache/commons/beanutils2/PropertyUtilsBean.java [1344:1387]:
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        if (bean == null) {
            throw new IllegalArgumentException("No bean specified");
        }
        if (name == null) {
            throw new IllegalArgumentException("No name specified for bean class '" +
                    bean.getClass() + "'");
        }

        // Resolve nested references
        while (resolver.hasNested(name)) {
            final String next = resolver.next(name);
            Object nestedBean = null;
            try {
                nestedBean = getProperty(bean, next);
            } catch (final IllegalAccessException | NoSuchMethodException | InvocationTargetException e) {
                return false;
            }
            if (nestedBean == null) {
                throw new NestedNullException
                        ("Null property value for '" + next +
                        "' on bean class '" + bean.getClass() + "'");
            }
            bean = nestedBean;
            name = resolver.remove(name);
        }

        // Remove any subscript from the final name value
        name = resolver.getProperty(name);

        // Treat WrapDynaBean as special case - may be a write-only property
        // (see Jira issue# BEANUTILS-61)
        if (bean instanceof WrapDynaBean) {
            bean = ((WrapDynaBean)bean).getInstance();
        }

        // Return the requested result
        if (bean instanceof DynaBean) {
            // All DynaBean properties are readable
            return ((DynaBean) bean).getDynaClass().getDynaProperty(name) != null;
        }
        try {
            final PropertyDescriptor desc =
                getPropertyDescriptor(bean, name);
            if (desc != null) {
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src/main/java/org/apache/commons/beanutils2/PropertyUtilsBean.java [1422:1465]:
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        if (bean == null) {
            throw new IllegalArgumentException("No bean specified");
        }
        if (name == null) {
            throw new IllegalArgumentException("No name specified for bean class '" +
                    bean.getClass() + "'");
        }

        // Resolve nested references
        while (resolver.hasNested(name)) {
            final String next = resolver.next(name);
            Object nestedBean = null;
            try {
                nestedBean = getProperty(bean, next);
            } catch (final IllegalAccessException | NoSuchMethodException | InvocationTargetException e) {
                return false;
            }
            if (nestedBean == null) {
                throw new NestedNullException
                        ("Null property value for '" + next +
                        "' on bean class '" + bean.getClass() + "'");
            }
            bean = nestedBean;
            name = resolver.remove(name);
        }

        // Remove any subscript from the final name value
        name = resolver.getProperty(name);

        // Treat WrapDynaBean as special case - may be a read-only property
        // (see Jira issue# BEANUTILS-61)
        if (bean instanceof WrapDynaBean) {
            bean = ((WrapDynaBean)bean).getInstance();
        }

        // Return the requested result
        if (bean instanceof DynaBean) {
            // All DynaBean properties are writable
            return ((DynaBean) bean).getDynaClass().getDynaProperty(name) != null;
        }
        try {
            final PropertyDescriptor desc =
                getPropertyDescriptor(bean, name);
            if (desc != null) {
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