The libdohj library is a lightweight wrapper library around the bitcoinj Java library, enabling support for Syscoin (pull requests for support for other altcoins would be welcomed). We ported over bitcoinj to the latest version 0.15+ and try to keep up-to-date with the base.
To get started, it is best to have the latest JDK and Maven installed. The HEAD of the master branch contains the latest development code.
You should be familiar with bitcoinj first, as this library simply adds minor
changes to extend bitcoinj. Generally using libdohj is equivalent to using
bitcoinj, except with different network parameters (reflecting Syscoin consensus
in place of Bitcoin).
Be aware however that altcoin blocks have their own class, AltcoinBlock, which adds support for features such as AuxPoW.
To perform a full build use
mvn clean package
You can also run
mvn site:site
to generate a website with useful information like JavaDocs.
The outputs are under the target directory.
Alternatively, just import the project using your IDE. IntelliJ has Maven integration built-in and has a free Community Edition. Simply use File | Import Project and locate the pom.xml in the root of the cloned project source tree.