} catch (final UnsupportedEncodingException e) {
            throw new UnsupportedEncodingRuntimeException(e);
        }
    }

    /**
     * Polls an encryption cipher from the queue, creating a new one if none are available.
     *
     * @return an encryption cipher
     */
    protected Cipher pollEncryptoCipher() {
        Cipher cipher = encryptoQueue.poll();

        jvmMemoryNonHeapObj.committed = mem.getNonHeapCommitted().getBytes();
        final List<BufferPool> bufferPools = jvmStats.getBufferPools();
        jvmObj.pools = bufferPools.stream().map(p -> {
            final JvmPoolObj jvmPoolObj = new JvmPoolObj();
            jvmPoolObj.key = p.getName();
            jvmPoolObj.count = p.getCount();