* Should use inference when upgrading (remove redundant information).
     *
     * @return an {@link Optional} containing the boolean value {@code true} if specified, or empty
     */
    @Nonnull
    Optional<Boolean> infer();

    /**
     * Should fix Maven 4 compatibility issues in POMs.
     * This includes fixing unsupported combine attributes, duplicate dependencies,
     * unsupported expressions, and other Maven 4 validation issues.

        // Although we cannot directly verify the super constructor call with Mockito for a real class,
        // we can infer its correct behavior if the object is successfully constructed and its own fields are correct.
        // The super constructor is called with (domainHandle, 0, acct_flags, null, 0)

   * or extract a variable, and put the suppression on that. However, a local variable typically
   * doesn't work: Because nullness analyses typically infer the nullness of local variables,
   * there's no way to assign a {@code @Nullable T} to a field {@code T foo;} and instruct the
   * analysis that that means "plain {@code T}" rather than the inferred type {@code @Nullable T}.

#*  *##set ( $groupId = $project.artifact.groupId )
#*  *##set ( $directory = 'lib' )
#*  *##if ( !$apacheMavenGroupIds.contains( $groupId ) )
#*    *### advertise about each non-Maven dependency
#*    *###
#*    *### infer SPDX license id
#*    *##if ( $MITLicenseNames.contains( $license.name ) )
#*      *##set ( $spdx = 'MIT' )
#*    *##elseif ( $license.name == "Eclipse Public License, Version 1.0" )
#*      *##set ( $spdx = 'EPL-1.0' )

   * or extract a variable, and put the suppression on that. However, a local variable typically
   * doesn't work: Because nullness analyses typically infer the nullness of local variables,
   * there's no way to assign a {@code @Nullable T} to a field {@code T foo;} and instruct the
   * analysis that that means "plain {@code T}" rather than the inferred type {@code @Nullable T}.

    SettableFuture<Object> async = SettableFuture.create();
    SettableFuture<Object> inner = SettableFuture.create();
    async.setFuture(inner);
    async.cancel(true);
    assertTrue(inner.isCancelled());
    assertTrue(inner.wasInterrupted());
    assertThrows(CancellationException.class, () -> inner.get());
  }

  public void testCancel_resultCancelsInner() throws Exception {

        final InvertibleCryptographer inver;
        final String cipherAlgorism = fessConfig.getAppCipherAlgorism();
        if ("blowfish".equalsIgnoreCase(cipherAlgorism)) {
            inver = InvertibleCryptographer.createBlowfishCipher(fessConfig.getAppCipherKey());
        } else if ("des".equalsIgnoreCase(cipherAlgorism)) {
            inver = InvertibleCryptographer.createDesCipher(fessConfig.getAppCipherKey());

        assertThrows(PACDecodingException.class, () -> new KerberosToken(wrongOidToken));
    }

    /**
     * Test constructor with a malformed Kerberos token (invalid inner structure).
     *
     * @throws IOException if an I/O error occurs
     */
    @Test
    void testConstructorWithMalformedKerberosToken() throws IOException {

		},
		{
			name: "INNER JOIN",
			join: clause.Join{
				Type:  clause.InnerJoin,
				Table: clause.Table{Name: "user"},
				ON: clause.Where{
					Exprs: []clause.Expression{clause.Eq{clause.Column{Table: "user_info", Name: "user_id"}, clause.PrimaryColumn}},
				},
			},
			sql: "INNER JOIN `user` ON `user_info`.`user_id` = `users`.`id`",
		},
		{
			name: "CROSS JOIN",

  }

  public void testConverter_nullConversions() {
    for (CaseFormat outer : CaseFormat.values()) {
      for (CaseFormat inner : CaseFormat.values()) {
        assertThat(outer.converterTo(inner).convert(null)).isNull();
        assertThat(outer.converterTo(inner).reverse().convert(null)).isNull();
      }
    }
  }

  public void testConverter_toString() {