2. YankUltra-Light JDBC Persistance Layer
3. XdropwizardA skeleton DropWizard Web Application integrating several useful open source projects
4. XchartXChart is a light-weight Java library for plotting data.
5. JspiceJSpice is a SPICE-inspired analog circuit simulator made in Java with an emphasis on simulating memristors and analog circuits containing memristors.
7. XchangeXChange is a Java library providing a streamlined API for interacting with 60+ Bitcoin and Altcoin exchanges providing a consistent interface for trading and accessing market data.
8. DatasetsDatasets is a Java library for conveniently working with machine learning datasets.