import java
import semmle.code.java.dataflow.DataFlow

module Config implements DataFlow::ConfigSig {
  predicate isSource(DataFlow::Node n) { n.asExpr().(MethodCall).getCallee().getName() = "source" }

  predicate isSink(DataFlow::Node n) {
    n.asExpr().(Argument).getCall().getCallee().getName() = "sink"
  }
}

module Flow = DataFlow::Global<Config>;

from DataFlow::Node source, DataFlow::Node sink
where Flow::flow(source, sink)
select source, sink, source.getEnclosingCallable()