<plugin>
				<groupId>net.revelc.code.formatter</groupId>
				<artifactId>formatter-maven-plugin</artifactId>
				<version>2.26.0</version>
				<executions>
					<execution>
						<goals>
							<goal>format</goal>
						</goals>
					</execution>
				</executions>
				<configuration>
					<configFile>https://www.codelibs.org/assets/formatter/eclipse-formatter-1.1.xml</configFile>
				</configuration>

			<plugin>
				<groupId>net.revelc.code.formatter</groupId>
				<artifactId>formatter-maven-plugin</artifactId>
				<version>2.26.0</version>
				<executions>
					<execution>
						<goals>
							<goal>format</goal>
						</goals>
					</execution>
				</executions>
				<configuration>
					<configFile>https://www.codelibs.org/assets/formatter/eclipse-formatter-1.0.xml</configFile>
				</configuration>

				</configuration>
			</plugin>
			<plugin>
				<groupId>com.mycila</groupId>
				<artifactId>license-maven-plugin</artifactId>
			</plugin>
			<plugin>
				<groupId>net.revelc.code.formatter</groupId>
				<artifactId>formatter-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
	<dependencies>
		<dependency>
			<groupId>org.codelibs.fess</groupId>
			<artifactId>fess-crawler</artifactId>

				</configuration>
			</plugin>
			<plugin>
				<groupId>com.mycila</groupId>
				<artifactId>license-maven-plugin</artifactId>
			</plugin>
			<plugin>
				<groupId>net.revelc.code.formatter</groupId>
				<artifactId>formatter-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
	<dependencies>
		<dependency>
			<groupId>org.codelibs.fess</groupId>
			<artifactId>fess-crawler</artifactId>

			<plugin>
				<artifactId>maven-compiler-plugin</artifactId>
			</plugin>
			<plugin>
				<artifactId>maven-source-plugin</artifactId>
			</plugin>
			<plugin>
				<groupId>net.revelc.code.formatter</groupId>
				<artifactId>formatter-maven-plugin</artifactId>
			</plugin>
			<plugin>
				<artifactId>maven-surefire-plugin</artifactId>
				<configuration>
					<systemPropertyVariables>

				</configuration>
			</plugin>
			<plugin>
				<groupId>com.mycila</groupId>
				<artifactId>license-maven-plugin</artifactId>
			</plugin>
			<plugin>
				<groupId>net.revelc.code.formatter</groupId>
				<artifactId>formatter-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
	<dependencies>
		<dependency>
			<groupId>org.codelibs</groupId>
			<artifactId>corelib</artifactId>

				</configuration>
			</plugin>
			<plugin>
				<groupId>com.mycila</groupId>
				<artifactId>license-maven-plugin</artifactId>
			</plugin>
			<plugin>
				<groupId>net.revelc.code.formatter</groupId>
				<artifactId>formatter-maven-plugin</artifactId>
			</plugin>
			<plugin>
				<groupId>org.codelibs.maven</groupId>
				<artifactId>yuicompressor-maven-plugin</artifactId>
				<version>2.0.0</version>

            return null;
        }
    }

    /**
     * Formats a Date object to ISO datetime string format in UTC timezone.
     *
     * @param date the date to format
     * @return formatted date string, or empty string if date is null
     */
    public static String formatDate(final Date date) {
        if (date == null) {
            return StringUtil.EMPTY;
        }

    to go about it.
2.  All contributions must be licensed Apache 2.0 and all files must have a copy
    of the boilerplate license comment (can be copied from an existing file).
3.  Files should be formatted according to Google's [Java style guide][].
4.  Do your best to have a [well-formed commit message][] for the change.
5.  Pull requests typically do not need to modify the files under the `android`

- [ ] JavaDoc for public APIs
- [ ] Tests pass (`mvn test`)
- [ ] No compiler warnings
- [ ] Proper exception handling
- [ ] Resource cleanup (AutoCloseable)
- [ ] Thread-safe if needed
- [ ] Code formatted (`mvn formatter:format`)
- [ ] License headers (`mvn license:format`)

---

## Quick Reference

### Key File Locations

**Core**: `fess-crawler/src/main/java/org/codelibs/fess/crawler/`