code: private byte[] transform(byte[] classfileBuffer, InstrumentationActions instrumentationActions) {
  		ClassReader classReader = new ClassReader(classfileBuffer);
  		ClassWriter classWriter = new ClassWriter(classReader, ClassWriter.COMPUTE_FRAMES);
  		ClassVisitor localVariableStateEmitterTestClassVisitor = new StateTrackingClassVisitor(classWriter,
  				instrumentationActions);
  		classReader.accept(localVariableStateEmitterTestClassVisitor, 0);
  		return classWriter.toByteArray();
  	}
docs: Perform the given instrumentation actions on a class.
  @param classfileBuffer class to be transformed
  @param instrumentationActions instrumentation actions to be applied
  @return instrumented class