manage.bat(sh) => 23 (generate):
A execution command of Generate task
which generates classes corresponding your tables,
for example, entities, condition-beans to specified
directories by DBFlute properties on "dfprop" directory.

Generated structures (directories and classes) are like this:
/- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
allcommon : classes bridging to DBFlute Runtime
bsbhv     : base behaviors
bsentity  : base entities

    #  The value of the author tag in java-doc of generated classes.
    #  All classes are target.
    #
    #; classAuthor = DBFlute(AutoGenerator)
    # - - - - - - - - - -/

    # /- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    # o sourceFileEncoding: (NotRequired - Default 'UTF-8')
    #  The value of an encoding for source files that are generated classes.

/target/
/work/
/bin/
/mydbflute/
/solr/data/
/src/main/webapp/WEB-INF/classes/
/src/main/webapp/WEB-INF/lib/
/src/main/webapp/WEB-INF/site/
/src/main/webapp/WEB-INF/plugin/
/src/main/webapp/WEB-INF/env/crawler/lib/
/src/main/webapp/WEB-INF/env/suggest/lib/
/src/main/webapp/WEB-INF/env/thumbnail/lib/
/src/main/webapp/WEB-INF/thumbnails/
/src/main/webapp/jar/
/dbflute_fess/extlib/*
/dbflute_fess/log/*.log
/dbflute_h2/log/*.log

        }
        return org.codelibs.core.io.ResourceUtil.getResourceAsFile(String.join("/", names)).toPath();
    }

    public static Path getClassesPath(final String... names) {
        return getPath("WEB-INF/", "classes", names);
    }

    public static Path getOrigPath(final String... names) {
        return getPath("WEB-INF/", "orig", names);
    }

    public static Path getMailTemplatePath(final String... names) {

        buf.append("},");
        final Classes classes = jvmStats.getClasses();
        buf.append("\"classes\":{");
        append(buf, "loaded", () -> classes.getLoadedClassCount()).append(',');
        append(buf, "total_loaded", () -> classes.getTotalLoadedClassCount()).append(',');
        append(buf, "unloaded", () -> classes.getUnloadedClassCount());
        buf.append("},");

                                && (attributes.get("Fess-WebAppJar") != null || attributes.getValue("Fess-WebAppJar") != null)) {
                            createWebResourceSet(ResourceSetType.CLASSES_JAR, "/WEB-INF/classes", possibleJar.getURL(), "/");
                        }
                    }
                } catch (final Exception e) {
                    logger.log(Level.WARNING, e, () -> {

        #  But you can specify the '@gen' suffix that means generate-only except.
        #  A table with the mark can be treated as documents but no generating classes.
        #
        #; tableExceptList = list:{FOO_TABLE@gen ; prefix:FOO_@gen ; suffix:_FOO ; contain:_FOO_}

        # o tableTargetList: (NotRequired - Default list:{})

    # - - - - - - - - - -/

    # /- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    # o sql2EntityOutputDirectory: (NotRequired - Default generateOutputDirectory)
    #  The output directory of classes that is generated by Sql2Entity.
    #  Basically you don't need this if your directory structure is same as default.
    #  It's also for DBFlute library project when you use ApplicationOutsideSql.
    #

if NOT "%FESS_USE_GC_LOGGING%" == "" set FESS_JAVA_OPTS=%FESS_JAVA_OPTS% -Xlog:gc*,gc+age=trace,safepoint:file=%FESS_HOME%/logs/gc-%APP_NAME%.log:utctime,pid,tags:filecount=5,filesize=64m

set FESS_CLASSPATH=%FESS_HOME%\lib\classes
set FESS_JAVA_OPTS=%FESS_JAVA_OPTS% -Dfess
set FESS_JAVA_OPTS=%FESS_JAVA_OPTS% -Des-foreground=yes
set FESS_JAVA_OPTS=%FESS_JAVA_OPTS% -Dfess.home="%FESS_HOME%"

			<outputDirectory>fess-${project.version}/lib/classes</outputDirectory>
		</fileSet>
		<fileSet>
			<directory>${project.build.directory}/fess/WEB-INF/classes/org/codelibs/fess/</directory>
			<includes>
				<include>FessBoot**</include>
				<include>tomcat/**</include>
			</includes>
			<outputDirectory>fess-${project.version}/lib/classes/org/codelibs/fess</outputDirectory>
		</fileSet>
		<fileSet>