java.lang.RuntimeException when ...

[pikuit]

Steps to reproduce: 1.) ..Run the below code with jdk 8 in eclipse 2019-12 with soot-4.2.1-jar-with-dependencies.jar

Files used to reproduce: import java.util.ArrayList; import java.util.Arrays; import java.util.Iterator; import java.util.List; import java.util.Map;

import soot.MethodOrMethodContext; import soot.PackManager; import soot.Scene; import soot.SceneTransformer; import soot.SootClass; import soot.SootMethod; import soot.Transform; import soot.jimple.toolkits.callgraph.CHATransformer; import soot.jimple.toolkits.callgraph.CallGraph; import soot.jimple.toolkits.callgraph.Targets; public class MySootTest {

public static void main(String args[]) {
    List<String> argsList = new ArrayList<String>(Arrays.asList(args));
       argsList.addAll(Arrays.asList(new String[]{
               "-w",
               "-main-class",
               "test.CallGraphs",//main-class
               "test.CallGraphs",//argument classes
               "test.A"         //
       }));

       PackManager.v().getPack("wjtp").add(new Transform("wjtp.myTrans", new SceneTransformer() {

        @Override
        protected void internalTransform(String phaseName, Map<String, String> options) {
               CHATransformer.v().transform();
                       SootClass a = Scene.v().getSootClass("testers.A");

               SootMethod src = Scene.v().getMainClass().getMethodByName("doStuff");
               CallGraph cg = Scene.v().getCallGraph();

               Iterator<MethodOrMethodContext> targets = new Targets(cg.edgesOutOf(src));
               while (targets.hasNext()) {
                   SootMethod tgt = (SootMethod)targets.next();
                   System.out.println(src + " may call " + tgt);
               }
        }

       }));

           args = argsList.toArray(new String[0]);

           soot.Main.main(args);
}

}

Soot version:

soot-4.2.1-jar-with-dependencies.jar from https://github.com/soot-oss/soot#how-do-i-obtain-the-nightly-builds

Command line:

-cp lib\soot-4.2.1-jar-with-dependencies.jar;. soot.Main -w -main-class test.CallGraphs test.CallGraphs test.A

Max Memory:

1797MB

Stack trace:

java.lang.RuntimeException: None of the basic classes could be loaded! Check your Soot class path!
    at soot.Scene.loadBasicClasses(Scene.java:1755)
    at soot.Scene.loadNecessaryClasses(Scene.java:1845)
    at soot.Main.run(Main.java:241)
    at soot.Main.main(Main.java:141)
    at MySootTest.main(MySootTest.java:54)

[anddann]

Okay, the error is telling us that soot did not find the rt.jar. In your command line options can you please omit the cmd-parameter cp and just use the cmd-paramter -process-dir.

Given your command line, soot uses the classpath -cp lib\soot-4.2.1-jar-with-dependencies.jar;. and tries to find rt.jar in these directories. Obviously, soot is unable to locate the rt.jar, and thus fails to load basic classes, e.g., String, Object, etc.

[pikuit]

Remediated the soot classpath runtime exception by setting the below options to execute the soot and run callgraph.

Options.v().set_verbose(false); Options.v().set_keep_line_number(true); Options.v().set_src_prec(Options.src_prec_class); //Options.v().set_soot_classpath(classpath); Options.v().set_prepend_classpath(true); Options.v().set_soot_classpath(classpath);

But facing issue with callgraph as Soot is unable to run with main method in spring mvc code . kindly assist how to do a callgraph in spring-mvc

[anddann]

Super, that the RuntimeException is fixed! Can you give more details concerning the issue? Does not soot find the main method?

[pikuit]

Created a sample Spring mvc HelloController below class with added provided jars: spring-web-3.2.18.RELEASE.jar, org.springframework.web-3.2.2.RELEASE.jar, org.springframework.web.servlet-3.2.2.RELEASE.jar, org.springframework.expression-3.2.1.RELEASE.jar, org.springframework.core-3.2.2.RELEASE.jar, org.springframework.context-3.2.2.RELEASE.jar, org.springframework.beans-3.2.2.RELEASE.jar, org.springframework.asm-3.1.4.RELEASE.jar, commons-logging-1.2.jar

HelloController.java

import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.ui.ModelMap;

@Controller @RequestMapping("/hello") public class HelloController { @RequestMapping(method = RequestMethod.GET) public String printHello(ModelMap model) { model.addAttribute("message", "Hello Spring MVC Framework!"); return "hello"; } }

SootMain CLass

Options.v().set_verbose(false); Options.v().set_keep_line_number(true); Options.v().set_src_prec(Options.src_prec_class); //Options.v().set_soot_classpath(classpath); Options.v().set_prepend_classpath(true); Options.v().set_soot_classpath();

        String path=<libary path>;
        File folder = new File(path);
        File[] files = folder.listFiles();
        List<String> flpath = new ArrayList<String>();
        for(File fl:files) {
            flpath.add(fl.toString());
        }
        Options.v().set_process_dir(flpath);
        Options.v().set_allow_phantom_refs(true);

        PhaseOptions.v().setPhaseOption("bb", "off");
        PhaseOptions.v().setPhaseOption("tag.ln", "on");
        PhaseOptions.v().setPhaseOption("jj.a", "on");
        PhaseOptions.v().setPhaseOption("jj.ule", "on");

        Options.v().set_whole_program(true);
    List<String> argsList = new ArrayList<String>(Arrays.asList(args));
       argsList.addAll(Arrays.asList(new String[]{
               "-w",
              // "-main-class"
       }));

       Map<String , String> fileMAp = new HashMap<String , String>();
       fileMAp.put("test.HelloController","printHello");

       SootClass a = Scene.v().loadClassAndSupport("test.UserMain");
       Scene.v().setMainClass(a);

Exception: Soot started on Sat Aug 22 21:28:17 IST 2020 java.lang.RuntimeException: Failed to convert <org.springframework.asm.commons.AnalyzerAdapter: void visitFrame(int,int,java.lang.Object[],int,java.lang.Object[])> at soot.asm.AsmMethodSource.getBody(AsmMethodSource.java:2163) at soot.SootMethod.retrieveActiveBody(SootMethod.java:402) at soot.jimple.toolkits.annotation.LineNumberAdder.internalTransform(LineNumberAdder.java:64) at soot.PackManager.runPacksNormally(PackManager.java:491) at soot.PackManager.runPacks(PackManager.java:419) at soot.Main.run(Main.java:269) at soot.Main.main(Main.java:141) at MySootTest.main(MySootTest.java:139) Caused by: java.lang.RuntimeException: Trying to create virtual invoke expression for interface type (org.springframework.asm.MethodVisitor in file uknown). Use JInterfaceInvokeExpr instead! at soot.jimple.internal.JVirtualInvokeExpr.(JVirtualInvokeExpr.java:49) at soot.jimple.Jimple.newVirtualInvokeExpr(Jimple.java:469) at soot.asm.AsmMethodSource.convertMethodInsn(AsmMethodSource.java:1396) at soot.asm.AsmMethodSource.convert(AsmMethodSource.java:1907) at soot.asm.AsmMethodSource.getBody(AsmMethodSource.java:2161) ... 7 more

Callgraph is not working and soot is throwing above exception

[pikuit]

Any update on how to achieve callgraph on spring-mvc application

[harshita19244]

@pikuit In the options you set to resolve the runtime exception, what did you set as classpath?