These actions are available when you right click on a .class file, a .java file or a .jimple file. In the Package Explorer, if a .java file is selected then there are twice as many options available: each option detailed below with src-prec java, causing the source file to be processed or src-prec class causing the corresponding class file to be procesed if one can be found. In the Navigator view (where one can actually see the class files) the options are more straightforward.