[Soot-list] Help with NPE PointsToAnalysis.reachingObjects(Context, Local) using Heros/Spark+Geom

[Henddher Pedroza]

Hello all:

Using Heros in combination with SPARK w/Geom (*), I am getting an NPE in CallGraph.findEdge(Unit, SootMethod) @ line 123 called from GeomPointsTo.reachingObjects(Context, Local) @ line 1504:

(*) cmd-line options:
-p cg all-reachable:true,verbose:true,safe-forname:true,safe-newinstance:true -p cg.spark enabled:true,verbose:true,geom-pta:true,geom-eval:2

GeomPointsTo.reachingObjects(Context, Local):
1504: Edge e = Scene.v().getCallGraph().findEdge((Unit)c, callee);

CallGraph.findEdge(Unit, SootMethod): 
    Edge findEdge( Unit u, SootMethod callee )
    {
    	Edge e = srcUnitToEdge.get(u);
123: 	while ( e.srcUnit() == u && // <<<< NPE, e is null

For my test, I am using one explicit entry point, discarding all default entry-points configured by Soot.
My entry-point is a static method (staticFakeEntryPoint) which instantiates one obj of the class I am testing. Then, in my interesting method doSomething(), I perform a field assignment and request PointsToAnalysis.reachingObjects(Context, Local) (see "<<<<" below). Context is the current statement "stmt" (r0.<MyClass: java.lang.String dummy> = $r3) and Local is "r0" (obtained through stmt.getDefBoxes().getValue().getBase() more or less)

MyClass {
   String dummy;
   void static staticFakeEntryPoint() {
      MyClass anObj = new MyClass();
      anObj.doSomething();
   }
   void doSomething() {
     this.dummy = doSomethingElse(); // <<<< jimple: r0.<MyClass: java.lang.String dummy> = $r3
   }
}

Am I incorrectly using pointsToAnalysis.reachingObjects(Context, Local) or incorrectly configuring Spark?

Why would srcUnitToEdge be lacking that edge?

Any help is appreciated.

- Henddher  
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