Thu 18 Jul 2019 13:30 - 13:50 at Track 1 - Program Analysis 2

Java 7 introduced programmable dynamic linking in the form of the invokedynamic framework. Static analysis of code containing programmable dynamic linking has often been cited as a significant source of unsoundness in the analysis of Java programs. For example, Java lambdas, introduced in Java 8, are a very popular feature, which is, however, resistant to static analysis, since it mixes invokedynamic with dynamic code generation. These techniques invalidate static analysis assumptions: programmable linking breaks reasoning about method resolution while dynamically generated code is, by definition, not available statically. In this paper, we show that a static analysis can predictively model uses of invokedynamic while also cooperating with extra rules to handle the runtime code generation of lambdas. Our approach plugs into an existing static analysis and helps eliminate all unsoundness in the handling of lambdas (including associated features such as method references) and generic invokedynamic uses. We evaluate our technique on a benchmark suite of our own and on third-party benchmarks, uncovering all code previously unreachable due to unsoundness, highly efficiently.

Thu 18 Jul

13:30 - 15:10: ECOOP Research Papers - Program Analysis 2 at Track 1
ecoop-2019-papers13:30 - 13:50
Research paper
George FourtounisUniversity of Athens, Yannis SmaragdakisUniversity of Athens
ecoop-2019-papers13:50 - 14:10
Research paper
Alex VillazónUniversidad Privada Boliviana, Bolivia, Haiyang SunUniversità della Svizzera italiana, Andrea RosàUniversity of Lugano, Switzerland, Eduardo RosalesUniversity of Lugano, Switzerland, Daniele BonettaOracle Labs, Isabella DefilippisUniversidad Privada Boliviana (UPB), Sergio OportoUniversidad Privada Boliviana (UPB), Walter BinderUniversity of Lugano, Switzerland
ecoop-2019-papers14:10 - 14:30
Research paper
Linghui LuoPaderborn University, Julian DolbyIBM Research, Eric BoddenHeinz Nixdorf Institut, Paderborn University and Fraunhofer IEM
ecoop-2019-papers14:30 - 14:50
Research paper
Alexi TurcotteNortheastern University, Ellen ArtecaNortheastern University, Gregor RichardsUniversity of Waterloo
ecoop-2019-papers14:50 - 15:10
Research paper
Carmen Torres LopezVrije Universiteit Brussel, Robbert Gurdeep SinghUniversiteit Gent, Belgium, Stefan MarrUniversity of Kent, Elisa Gonzalez BoixVrije Universiteit Brussel, Belgium, Christophe ScholliersUniversiteit Gent, Belgium