Put java solutions in weblab package
From this release on, java code should be declared in theSubmitted by Elmer van Chastelet on 16 March 2015 at 14:34
weblabpackage. This package declaration is added by default for new programming assignments. Existing program code (student solutions) will be instrumented with the package decl by prefixing the code. This change requires the new backend which handles the package correctly.