public static Constructor<?> findConstructorExact(String className, ClassLoader classLoader, Object... parameterTypes) {
        return findConstructorExact(findClass(className, classLoader), getParameterClasses(classLoader, parameterTypes));
    }
Look up a constructor of a class and set it to accessible.
See {@link #findMethodExact(String, ClassLoader, String, Object...)} for details.
android/android_framework/base/src/main/java/util/XposedHelpers.java