}

    /**
     * Initializes session security keys for signing and sealing.
     * @param mk the master key to derive session keys from
     */
    protected void initSessionSecurity(final byte[] mk) {
        this.signKey = deriveKey(mk, C2S_SIGN_CONSTANT);
        this.verifyKey = deriveKey(mk, S2C_SIGN_CONSTANT);

        if (log.isDebugEnabled()) {

Find the `supported.languages` property (around line 202) and ensure your language code is included:

```properties
supported.languages=ar,bg,bn,ca,ckb_IQ,cs,da,de,el,en_IE,en,es,et,eu,fa,fi,fr,gl,gu,he,hi,hr,hu,hy,id,it,ja,ko,lt,lv,mk,ml,nl,no,pa,pl,pt_BR,pt,ro,ru,si,sq,sv,ta,te,th,tl,tr,uk,ur,vi,zh_CN,zh_TW,zh
```

**Optional configurations:**

If you create online help documentation:
```properties

          "site.gr.jp",
          "site.jp",
          "site.lg.jp",
          "site.ma",
          "site.mk",
          "site.ne.jp",
          "site.or.jp",
          "site.quick.jp",
          "site.tenki.jp",
          "site.tv",
          "site.us",
          "some.org.mk",
          "stanford.edu",
          "state.ca.us",
          "uomi-online.kir.jp",
          "utenti.blah.it",

          "site.gr.jp",
          "site.jp",
          "site.lg.jp",
          "site.ma",
          "site.mk",
          "site.ne.jp",
          "site.or.jp",
          "site.quick.jp",
          "site.tenki.jp",
          "site.tv",
          "site.us",
          "some.org.mk",
          "stanford.edu",
          "state.ca.us",
          "uomi-online.kir.jp",
          "utenti.blah.it",

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