List args = new LinkedList();
SootMethod constructor = SootUtilities.getMatchingMethod(
modelClass, "<init>", args);
units.insertBefore(Jimple.v().newInvokeStmt(
Jimple.v().newSpecialInvokeExpr(modelLocal,
constructor.makeRef(), args)), insertPoint);
FieldRef fieldRef = Jimple.v().newInstanceFieldRef(
body.getThisLocal(), modelField.makeRef());
units.insertBefore(Jimple.v().newAssignStmt(fieldRef, modelLocal),
insertPoint);