assertNull(paramMap.get("xxx"));
        assertEquals("111", paramMap.get("aaa"));
        assertEquals("222", paramMap.get("aaa_bbb"));
        assertEquals("222", paramMap.get("aaaBbb"));
        assertEquals("222", paramMap.get("AaaBbb"));
        assertNull(paramMap.get("aaabbb"));
        assertEquals("333", paramMap.get("aaa_bbb_ccc"));
        assertEquals("333", paramMap.get("aaaBbbCcc"));

        assertEquals("EMP", StringUtil.decamelize("Emp"));
        assertEquals("AAA_BBB", StringUtil.decamelize("aaaBbb"));
        assertEquals("AAA_BBB", StringUtil.decamelize("AaaBbb"));
        assertEquals("AAA_BBB_C", StringUtil.decamelize("aaaBbbC"));
        assertEquals("USER_ID", StringUtil.decamelize("UserId"));
    }

    /**
     * @throws Exception
     */
    @Test

ool\":{\"should\":[{\"match_phrase\":{\"title\":{\"query\":\"aaa:bbb\",\"slop\":0,\"zero_terms_query\":\"NONE\",\"boost\":0.5}}},{\"match_phrase\":{\"content\":{\"query\":\"aaa:bbb\",\"slop\":0,\"zero_terms_query\":\"NONE\",\"boost\":0.05}}},{\"fuzzy\":{\"title\":{\"value\":\"aaa:bbb\",\"fuzziness\":\"AUTO\",\"prefix_length\":0,\"max_expansions\":10,\"transpositions\":true,\"boost\":0.01}}},{\"fuzzy\":{\"content\":{\"value\":\"aaa:bbb\",\"fuzziness\":\"AUTO\",\"prefix_length\":0,\"max_expansions...

   * less than or equal to the hashtable mask.
   *
   * <pre>
   * hash  = aaaaaaaa
   * mask  = 00000fff
   * next  = 00000bbb
   * entry = aaaaabbb
   * </pre>
   *
   * <p>The pointers in [size(), entries.length) are all "null" (UNSET).
   */
  private transient int @Nullable [] entries;

  /**

   * than or equal to the hashtable mask.
   *
   * <pre>
   * hash  = aaaaaaaa
   * mask  = 00000fff
   * next  = 00000bbb
   * entry = aaaaabbb
   * </pre>
   *
   * <p>The pointers in [size(), entries.length) are all "null" (UNSET).
   */
  @VisibleForTesting transient int @Nullable [] entries;

  /**

   * than or equal to the hashtable mask.
   *
   * <pre>
   * hash  = aaaaaaaa
   * mask  = 00000fff
   * next  = 00000bbb
   * entry = aaaaabbb
   * </pre>
   *
   * <p>The pointers in [size(), entries.length) are all "null" (UNSET).
   */
  @VisibleForTesting transient int @Nullable [] entries;

  /**

D,aAAe7D,GAAOV,KAAMkB,IAAS5C,QAAS0B,MAW9D+Q,KAAM9E,EAAc,SAAU8E,GAO7B,OAJMxI,EAAYrD,KAAM6L,GAAQ,KAC/BzG,EAAKtG,MAAO,qBAAuB+M,GAEpCA,EAAOA,EAAKjN,QAASuF,EAAWC,GAAYlI,cACrC,SAAUF,GAChB,IAAI8P,EACJ,GACC,GAAOA,EAAW5J,EACjBlG,EAAK6P,KACL7P,EAAKjB,aAAc,aAAgBiB,EAAKjB,aAAc,QAGtD,OADA+Q,EAAWA,EAAS5P,iBACA2P,GAA2C,IAAnCC,EAAS1S,QAASyS,EAAO,YAE3C7P,EAAOA,EAAKb,aAAkC,IAAlBa,EAAKlC,UAC7C,OAAO,KAKTqE,OAAQ,SAAUnC,GACjB,IAAI+P,EAAOzT,GAAO0T,UAAY1T,GAAO0T,SAASD,KAC9C,OAAOA,GAAQA,EAAKlT,MAAO,KAAQmD,EAAK8J,IAGzCmG...

D,aAAe7D,GAAOV,KAAMkB,IAAS5C,QAAS0B,MAW9D+Q,KAAM9E,EAAc,SAAU8E,GAO7B,OAJMxI,EAAYrD,KAAM6L,GAAQ,KAC/BzG,EAAKtG,MAAO,qBAAuB+M,GAEpCA,EAAOA,EAAKjN,QAASuF,EAAWC,GAAYlI,cACrC,SAAUF,GAChB,IAAI8P,EACJ,GACC,GAAOA,EAAW5J,EACjBlG,EAAK6P,KACL7P,EAAKjB,aAAc,aAAgBiB,EAAKjB,aAAc,QAGtD,OADA+Q,EAAWA,EAAS5P,iBACA2P,GAA2C,IAAnCC,EAAS1S,QAASyS,EAAO,YAE3C7P,EAAOA,EAAKb,aAAkC,IAAlBa,EAAKlC,UAC7C,OAAO,KAKTqE,OAAQ,SAAUnC,GACjB,IAAI+P,EAAOzT,GAAO0T,UAAY1T,GAAO0T,SAASD,KAC9C,OAAOA,GAAQA,EAAKlT,MAAO,KAAQmD,EAAK8J,IAGzCmG...

OW,oBACP,OAAkD,IAA3CX,OAAOW,oBAAoBD,GAAKE,OAGvC,IADA,IAAIC,KACMH,EACN,GAAIL,EAAWK,EAAKG,GAChB,OAGR,OAAO,EAIf,SAASC,EAAYhB,GACjB,YAAiB,IAAVA,EAGX,SAASiB,EAASjB,GACd,MACqB,iBAAVA,GACmC,oBAA1CE,OAAOC,UAAUC,SAASC,KAAKL,GAIvC,SAASkB,EAAOlB,GACZ,OACIA,aAAiBmB,MACyB,kBAA1CjB,OAAOC,UAAUC,SAASC,KAAKL,GAIvC,SAASoB,EAAIC,EAAKC,GAGd,IAFA,IAAIC,EAAM,GAELC,EAAI,EAAGA,EAAIH,EAAIP,SAAUU,EAC1BD,EAAIE,KAAKH,EAAGD,EAAIG,GAAIA,IAExB,OAAOD,EAGX,SAASG,EAAOlB,EAAGC,GACf,IAAK,IAAIe,KAAKf,EACNF,EAAWE,EAAGe,KACdhB,EAAEgB...