Converting a java Class file to Soot's Intermediate Representation Jimple.

Converting a java Class file to Soot's Intermediate Representation Jimple.

Lets look at example to convert java files to Jimple. Here, I am using HelloWorld. java and convert it to class by using javac and Now i am converting HelloWorld.Class to Jimple file.

HelloWorld.Java Contains:

public class HelloWorld{

String output="";

static HelloWorld helloObj;

public HelloWorld(){

output ="Hello world";

}

public String printMessage(){

return output;

}

public static void main(String[] args)

{

helloObj = new HelloWorld();

System.out.println(helloObj.printMessage());

}

} 

Before try to convert into jimple file make sure the class file (HelloWorld.Class) is in the same directory as command line or you set the class-path properly.

Now, to convert class file to Jimple type following on your command line:

>Java soot.Main -f J HelloWorld

(J can be replaced by jimple)

>Java soot.Main -f jimple HelloWorld

(if your classpath is not set)

>Java -cp soot-2.5.0.jar soot.Main -f -J HelloWorld

If you got errors Like could not load class file, pool error at Line 31 etc.
 >Java -cp soot-2.5.0.jar soot.Main -f J -allow-phantom-refs HelloWorld

 -allow-phantom-refs : This option will generate phantom class of error codes and command. 
-f : represents the format for output 
-J: represents the jimple format
HelloWorld: Java class file
-cp: Classpath

Normally, in command works as: JAVA [JAVA OPTIONS]  SOOT[SOOT OPTIONS]

For result, go to soot directory where jar files are located, here soot automatically creates sootOutput directory and you can find HelloWorld.jimple file.