[ERROR] Failed to execute goal on project bitprivacy: Could not resolve dependencies for project com.dustyneuron.bitprivacy:bitprivacy:jar:0.3-SNAPSHOT: Could not find artifact com.google:bitcoinj:jar:0.8 in sonatype-nexus-snapshots (https://oss.sonatype.org/content/repositories/snapshots) -> [Help 1]
I've just tried it with maven 3 myself, and it worked for me (no special flags required). Did you do every step of these instructions? You have to download and build bitcoinj seperately because it isn't hosted in a maven repository:
sudo apt-get install git maven2 protobuf-compiler libprotobuf-java
git clone https://code.google.com/p/bitcoinj/ bitcoinj
cd bitcoinj
git fetch --all
git checkout cbbb1a2bf4d189732efe273ebf65ab2da14eaaa5
mvn -DskipTests install
cd ..
git clone git://github.com/dustyneuron/bitprivacy.git
cd bitprivacy
mvn -DskipTests package