4.0.0 rjack rjack-jackson pom 1.0 Jackson for Gem UTF-8 com.fasterxml.jackson.core jackson-core 2.2.3 com.fasterxml.jackson.core jackson-databind 2.2.3 com.fasterxml.jackson.core jackson-annotations 2.2.3 maven-assembly-plugin 2.2.1 false false assembly.xml assembly package single