src/main/java/org/java_websocket/drafts/Draft_6455.java
private long getByteBufferListSize() {
		long totalSize = 0;
		synchronized (byteBufferList) {
			for (ByteBuffer buffer : byteBufferList) {
				totalSize += buffer.limit();
			}
		}
		return totalSize;
	}
private long getByteBufferListSize() {
		long totalSize = 0;
		synchronized (byteBufferList) {
			for (ByteBuffer buffer : byteBufferList) {
				totalSize += buffer.limit();
			}
		}
		return totalSize;
	}
Get the current size of the resulting bytebuffer in the bytebuffer list
@return the size as long (to not get an integer overflow)