This is LastaFlute support.
'org.codelibs.fess:fess-crawler-lasta:1.0.2'
<dependency>
<groupId>org.codelibs.fess</groupId>
<artifactId>fess-crawler-lasta</artifactId>
<version>1.0.2</version>
</dependency>
<dependency org="org.codelibs.fess" name="fess-crawler-lasta" rev="1.0.2"/>
"org.codelibs.fess", "fess-crawler-lasta", "1.0.2"