affirm(foundCodeAttr != null); // by JVM spec
// prepend the new code to the current one
final Insn firstInsn = codeAttr.theCode();
affirm(firstInsn != null);
final Insn foundFirstInsn = foundCodeAttr.theCode();
affirm(foundFirstInsn != null);
final Insn lastInsn = firstInsn.append(foundFirstInsn);
affirm(lastInsn != null);
foundCodeAttr.setTheCode(firstInsn);