烟灰:场景中没有通话！未能应用JB

Question

使用烟灰，我正在尝试构建呼叫图。据我所知，问题是，在处理API时，没有主要方法可以用作入口点。我更彻底地检查了烟灰的加载。所使用的类是"正确加载的"（我从Scene.v().getClasses()打印了他们的列表，它显示了项目中的适当类（源和测试源）。

现在，在要求Scene.v().getCallGraph()的呼叫图：

的情况下，烟灰不断增加相同的例外

java.lang.RuntimeException: No call graph present in Scene. Maybe you want Whole Program mode (-w).

我因此尝试手动添加入口点，寻找用于该目的的测试套件中的方法。我发现，如果加载了这些类，则它们的方法不是。这是我使用的片段，在烟灰的教程上可以加载类方法：

    SootClass c = Scene.v().loadClassAndSupport(name);
    c.setApplicationClass();
    Iterator<SootMethod> mi = c.getMethods().iterator();
    while (mi.hasNext()) {
        SootMethod sm = (SootMethod)mi.next();
        if (sm.isConcrete()) {
            sm.retrieveActiveBody();
        }
    }

但是c.getMethods()返回没有方法...更多，呼叫sm.retrieveActiveBody();提高了一个例外：

java.lang.RuntimeException: Failed to apply jb to <com.[...classified...].resource.VoidResource: void <init>()>
    at soot.asm.AsmMethodSource.getBody(AsmMethodSource.java:1911)
    at soot.SootMethod.getBodyFromMethodSource(SootMethod.java:126)
    at soot.SootMethod.retrieveActiveBody(SootMethod.java:385)
    at ca.umontreal.iro.soot.CallGraphExample.loadClass(CallGraphExample.java:204)
    at ca.umontreal.iro.soot.CallGraphExample.loadClasses(CallGraphExample.java:139)
    at ca.umontreal.iro.soot.CallGraphExample.loadClasses(CallGraphExample.java:157)
    at ca.umontreal.iro.soot.CallGraphExample.loadClasses(CallGraphExample.java:157)
    at ca.umontreal.iro.soot.CallGraphExample.loadClasses(CallGraphExample.java:157)
    at ca.umontreal.iro.soot.CallGraphExample.loadClasses(CallGraphExample.java:157)
    at ca.umontreal.iro.soot.CallGraphExample.loadClasses(CallGraphExample.java:157)
    at ca.umontreal.iro.soot.CallGraphExample.loadClasses(CallGraphExample.java:157)
    at ca.umontreal.iro.soot.CallGraphExample.main(CallGraphExample.java:95)
Caused by: java.lang.IllegalStateException: RefType java.lang.InstantiationError not loaded. If you tried to get the RefType of a library class, did you call loadNecessaryClasses()? Otherwise please check Soot's classpath.
    at soot.Scene.getRefType(Scene.java:916)
    at soot.toolkits.exceptions.ThrowableSet$Manager.<init>(ThrowableSet.java:213)
    at soot.Singletons.soot_toolkits_exceptions_ThrowableSet_Manager(Singletons.java:1829)
    at soot.toolkits.exceptions.ThrowableSet$Manager.v(ThrowableSet.java:277)
    at soot.toolkits.exceptions.UnitThrowAnalysis.<init>(UnitThrowAnalysis.java:215)
    at soot.toolkits.exceptions.UnitThrowAnalysis.<init>(UnitThrowAnalysis.java:231)
    at soot.Singletons.soot_toolkits_exceptions_UnitThrowAnalysis(Singletons.java:1843)
    at soot.toolkits.exceptions.UnitThrowAnalysis.v(UnitThrowAnalysis.java:246)
    at soot.Scene.getDefaultThrowAnalysis(Scene.java:1324)
    at soot.jimple.toolkits.scalar.UnreachableCodeEliminator.internalTransform(UnreachableCodeEliminator.java:78)
    at soot.BodyTransformer.transform(BodyTransformer.java:54)
    at soot.Transform.apply(Transform.java:105)
    at soot.JimpleBodyPack.applyPhaseOptions(JimpleBodyPack.java:62)
    at soot.JimpleBodyPack.internalApply(JimpleBodyPack.java:105)
    at soot.Pack.apply(Pack.java:125)
    at soot.asm.AsmMethodSource.getBody(AsmMethodSource.java:1909)
    ... 11 more

这几乎适用于几乎所有类（测试类别除外）。我究竟做错了什么 ？为什么拒绝方法？

Answer 1

您是否使用命令行参数-w作为错误消息建议？

Answer 2

花花公子。您可以尝试写这篇文章：

Options.v().set_whole_program(true);
Scene.v().loadNecessaryClasses();
PackManager.v().runPacks();

大声笑也许对您有帮助。