<release>17</release>
				</configuration>
			</plugin>
			<plugin>
				<artifactId>maven-source-plugin</artifactId>
				<version>3.2.1</version>
				<executions>
					<execution>
						<id>source-jar</id>
						<phase>package</phase>
						<goals>
							<goal>jar</goal>
						</goals>
					</execution>
				</executions>
			</plugin>
			<plugin>
				<artifactId>maven-javadoc-plugin</artifactId>

        assertNull(StringUtil.camelize(null));
        assertEquals("Emp", StringUtil.camelize("EMP"));
        assertEquals("AaaBbb", StringUtil.camelize("AAA_BBB"));
        assertEquals("UserId", StringUtil.camelize("USER_ID"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testDecamelize() throws Exception {
        assertNull(StringUtil.decamelize(null));

        buf.append(Integer.toHexString(i & 0xff));
    }

    /**
     * _記法をキャメル記法に変換します。
     * <p>
     * 次のように使います．
     * </p>
     *
     * <pre>
     * StringUtil.camelize("USER_ID")  = "UserId"
     * </pre>
     *
     * @param s
     *            テキスト
     * @return 結果の文字列
     */
    public static String camelize(String s) {
        if (s == null) {
            return null;