private static void generateFirstActivity(ApplicationWriter aw) {
    ClassVisitor cv;
    MethodVisitor mv;

    cv = aw.visitClass(ACC_PUBLIC, "Lft/nevo/FirstActivity;", null, "Landroid/app/Activity;", null);
    cv.visit(0, ACC_PUBLIC, "Lft/nevo/FirstActivity;", null, "Landroid/app/Activity;", null);

    cv.visitSource("FirstActivity.java", null);
    {
      mv = cv.visitMethod(ACC_PUBLIC + ACC_CONSTRUCTOR, "<init>", "V", null, null);
      mv.visitCode();
      Label l0 = new Label();
      mv.visitLabel(l0);
      mv.visitLineNumber(6, l0);
      mv.visitMethodInsn(
          INSN_INVOKE_DIRECT, "Landroid/app/Activity;", "<init>", "V", new int[] {0});
      mv.visitInsn(INSN_RETURN_VOID);
      mv.visitMaxs(1, 0);
      mv.visitEnd();
    }
    {
      mv = cv.visitMethod(ACC_PUBLIC, "onCreate", "VLandroid/os/Bundle;", null, null);
      mv.visitCode();
      mv.visitParameters(new String[] {"savedInstanceState"});
      Label l0 = new Label();
      mv.visitLabel(l0);
      mv.visitLineNumber(10, l0);
      mv.visitMethodInsn(
          INSN_INVOKE_SUPER,
          "Landroid/app/Activity;",
          "onCreate",
          "VLandroid/os/Bundle;",
          new int[] {1, 2});
      Label l1 = new Label();
      mv.visitLabel(l1);
      mv.visitLineNumber(11, l1);
      mv.visitVarInsn(INSN_CONST_HIGH16, 0, 2130903040);
      mv.visitMethodInsn(
          INSN_INVOKE_VIRTUAL, "Lft/nevo/FirstActivity;", "setContentView", "VI", new int[] {1, 0});
      Label l2 = new Label();
      mv.visitLabel(l2);
      mv.visitLineNumber(14, l2);
      mv.visitInsn(INSN_RETURN_VOID);
      mv.visitMaxs(3, 0);
      mv.visitEnd();
    }

    {
      mv = cv.visitMethod(ACC_PUBLIC, "myMethod", "V", null, null);
      mv.visitCode();

      // Added code.
      Label label1 = new Label();
      Label label2 = new Label();

      mv.visitLabel(label1);
      mv.visitJumpInsn(INSN_GOTO_16, label2, 0, 0);
      mv.visitJumpInsn(INSN_GOTO_16, label2, 0, 0);

      // NOPs are inserted here.
      for (int i = 0; i < MethodAdapterResizeGoto8BitsDoubleRefs.NB_NOPS; i++) {
        mv.visitInsn(INSN_NOP);
      }

      mv.visitLabel(label2);
      mv.visitJumpInsn(INSN_GOTO_16, label1, 0, 0);
      mv.visitJumpInsn(INSN_GOTO_16, label1, 0, 0);

      mv.visitInsn(INSN_RETURN_VOID);
      mv.visitMaxs(1, 0);
      mv.visitEnd();
    }
    cv.visitEnd();
  }