BlockchainJ is a Java rewrite of Bitcoin Core. BJ allow you to setup your own Blockchain a

bitcoinj java 'insufficient priority' (66) issue: It seems that technical info is not up to date to the current Bitcoin Core version (0.11.2.0). Since version 0.11 (12 July 2015) the minimum relay fee is 5 times bigger (from 1000 Satoshi to 5000) so the transaction has not enough fees to be relayed.

Highly optimised lightweight simplified payment verification (SPV) mode. In this mode, only a small part of the block chain is downloaded, making bitcoinj suitable for usage on constrained devices like smartphones or cheap virtual private servers.

https://bitcoinj.github.io/ http://codesuppository.blogspot.com/2013/07/bitcoin-code-snippets.html http://codesuppository.blogspot.com/2013/07/bitcoin-code-snippets.html http://codesuppository.blogspot.com/2014/01/how-to-parse-bitcoin-blockchain.html

http://www195.pair.com/mik3hall/btc.html http://bitcoinnewschannel.com/2016/01/19/bitcoin-programming-with-bitcoinj-part-i/