What is OpenRDF Better Known as?

RDF hackers will know about OpenRDF, which officially became Eclipse RDF4J in May 2016. 

Its tagline is its power to "create applications that leverage the power of linked data and Semantic Web".

Sesame was another name for what is now known as RDF4J.

Many name changes were also effected in the move to a new governance structure. For example:

org.openrdf.*  Java packages moved to org.eclipse.rdf4j.*

In particular the RDF4J project houses the SAIL (Storage and Inference Layer) API for low level transactional access to RDF data. Sail is dubbed the "JDBC of the RDF database world".

Eclipse Ganymede Released

The Eclipse Project marches on with releases named after the satellites of Jupiter (IO, Europa, Ganymede, Callisto). The latest release has 18 million lines of code. It runs pretty fast with 2MB RAM.

1) Keyboard Shortcuts
The tricky thing initially (if you are used to MSVC) is to get used to a new set of keyboard shortcuts. Here is a quick summary to get started fast:

Cntrl-H search the workspace
Cntrl-F11 run
Simple F11 debug

When you debug (F11) it opens debug perspective.

F5 Step into (five-in)
F6 Step over (six-over)

The debug window at the top of the screen shows you which thread you are running in and which java runtime you are using.

2) Customizing the Editor
Alt-WP gives you the Window Preferences from where you can set line numbers. (General->Editors->Text editors, Show line numbers). Line numbers can be quite ugly but useful when debugging.