// Setup test script engine
        scriptEngineFactory.add("test", testScriptEngine);

        // Execute script
        String scriptType = "test";
        String script = "test script content";
        Object result = scriptExecutor.execute(scriptType, script);

        // Verify result
        assertEquals("processed: test script content", result);

#

# Environment file
packaging.env.file=/etc/sysconfig/fess

# Default configuration directory and file to use in bin/plugin script

# Simple marker to check that properties are correctly overridden
packaging.type=rpm

# Custom header for package scripts
packaging.scripts.header=

        // Default constructor
    }

    /**
     * Executes a script with the specified script type and content.
     *
     * @param scriptType the type of script to execute
     * @param script the script content to execute
     * @return the result of script execution
     */
    public abstract Object execute(String scriptType, String script);

    /**
     * Initiates shutdown of the job executor.

${packaging.scripts.header}

#
# This script is executed in the pre-remove phase
#
#   On Debian,
#       $1=remove    : indicates a removal
#       $1=upgrade   : indicates an upgrade
#
#   On RedHat,
#       $1=0         : indicates a removal
#       $1=1         : indicates an upgrade



STOP_REQUIRED=false

case "$1" in

    # Debian ####################################################
    remove)

import groovy.lang.GroovyClassLoader;
import groovy.lang.GroovyShell;

/**
 * Groovy script engine implementation that extends AbstractScriptEngine.
 * This class provides support for executing Groovy scripts with parameter binding
 * and DI container integration.
 */
public class GroovyEngine extends AbstractScriptEngine {
    private static final Logger logger = LogManager.getLogger(GroovyEngine.class);

    /**

        // Test scripts with special characters
        Object result = jobExecutor.execute("test", "script with\nnewline");
        assertEquals("Executed: test script with\nnewline", result);

        result = jobExecutor.execute("test", "script with\ttab");
        assertEquals("Executed: test script with\ttab", result);

        result = jobExecutor.execute("test", "script with \"quotes\"");

${packaging.scripts.header}

#
# This script is executed in the pre-installation phase
#
#   On Debian,
#       $1=install : indicates an new install
#       $1=upgrade : indicates an upgrade
#
#   On RedHat,
#       $1=1       : indicates an new install
#       $1=2       : indicates an upgrade



# Sets the default values for fess variables used in this script
FESS_USER="${packaging.fess.user}"
FESS_GROUP="${packaging.fess.group}"

${packaging.scripts.header}

#
# This script is executed in the post-removal phase
#
#   On Debian,
#       $1=remove    : indicates a removal
#       $1=purge     : indicates an upgrade
#
#   On RedHat,
#       $1=0         : indicates a removal
#       $1=1         : indicates an upgrade



SOURCE_ENV_FILE=true
REMOVE_DIRS=false
REMOVE_SERVICE=false
REMOVE_USER_AND_GROUP=false

case "$1" in

packaging.os.max.map.count=262144

# Simple marker to check that properties are correctly overridden
packaging.type=tar.gz

# Custom header for package scripts
packaging.scripts.header=

[Fess Site Search](https://github.com/codelibs/fess-site-search) provides [scripts](https://fss-generator.codelibs.org/docs/manual) (see below) to help you migrate from GSS/CSE.
Using the, you can replace existing GSS/CSE JavaScript codes with:

```
<script>
  (function() {
    var fess = document.createElement('script');
    fess.type = 'text/javascript';
    fess.async = true;