I am currently trying to hook the constructor of every int in an app.

In my test app, there is this keySize variable, declared like this :

int keySize = 256;

I want to be able to print “int with value 256 has been declared”

I’ve managed to hook the constructor of java.lang.Integer using these hooks :

Java.use('java.lang.Integer').$init.overload("int").implementation = function(int_argument) {
    console.log(int_argument)
    return this.$init.overload("int").call(this,int_argument);
  }

Java.use('java.lang.Integer').$init.overload("java.lang.String").implementation = function(string_argument){
    console.log(string_argument)
    return this.$init.overload("java.lang.String").call(this,string_argument);
}

Despite this hook, I don’t see the value of my keySize variable in what Frida prints, is there something I’m doing wrong ? Is it even possible with Frida ?