If you've found a security problem, please follow our [bug bounty][security] program.

If you've found a bug, please contribute a failing test case so we can study and fix it.

If you have a new feature idea, please build it in an external library. There are
[many libraries][works_with_okhttp] that sit on top or hook in via existing APIs. If you build
something that integrates with OkHttp, tell us so that we can link it!

    FESS_MIN_MEM=256m
fi
if [ "x$FESS_MAX_MEM" = "x" ]; then
    FESS_MAX_MEM=2g
fi
if [ "x$FESS_HEAP_SIZE" != "x" ]; then
    FESS_MIN_MEM=$FESS_HEAP_SIZE
    FESS_MAX_MEM=$FESS_HEAP_SIZE
fi

# External opensearch cluster
#SEARCH_ENGINE_HTTP_URL=http://localhost:9200
#FESS_DICTIONARY_PATH=/var/lib/opensearch/config/

# SSL truststore for certificate validation over https

   * grab a lock.
   */
  // @Immutable except that Throwable is mutable (initCause(), setStackTrace(), mutable subclasses).
  private static final class StateSnapshot {
    /**
     * The internal state, which equals external state unless shutdownWhenStartupFinishes is true.
     */
    final State state;

    /** If true, the user requested a shutdown while the service was still starting up. */

import org.codelibs.fess.exception.CommandExecutionException;
import org.codelibs.fess.opensearch.user.exentity.User;

/**
 * Authentication chain implementation that executes external commands for user operations.
 * Provides user management through command-line tool execution for password changes and user deletion.
 */
public class CommandChain implements AuthenticationChain {

    - [SIG OpenStack](#sig-openstack-1)
    - [SIG Release](#sig-release)
    - [SIG Scheduling](#sig-scheduling-1)
    - [SIG Storage](#sig-storage-1)
    - [SIG Windows](#sig-windows-1)
  - [External Dependencies](#external-dependencies)
- [v1.13.0-rc.2](#v1130-rc2)
  - [Downloads for v1.13.0-rc.2](#downloads-for-v1130-rc2)
    - [Client Binaries](#client-binaries-13)
    - [Server Binaries](#server-binaries-13)

import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.InputStreamThread;

import jakarta.annotation.PostConstruct;

/**
 * Command-based thumbnail generator that executes external commands to create thumbnails.
 * Uses external tools through command execution to generate thumbnail images from documents.
 */
public class CommandGenerator extends BaseThumbnailGenerator {

set FESS_JAVA_OPTS=%FESS_JAVA_OPTS% -Dfess.log.level=warn
set FESS_JAVA_OPTS=%FESS_JAVA_OPTS% -Dlasta.env=web
set FESS_JAVA_OPTS=%FESS_JAVA_OPTS% -Dtomcat.config.path=tomcat_config.properties

REM External opensearch cluster
REM set FESS_JAVA_OPTS=%FESS_JAVA_OPTS% -Dfess.search_engine.http_address=http://localhost:9200
REM set FESS_JAVA_OPTS=%FESS_JAVA_OPTS% -Dfess.dictionary.path=%SEARCH_ENGINE_HOME%/config/

 * <p>{@code Graph}s built by this class also guarantee that each collection-returning accessor
 * returns a <b>(live) unmodifiable view</b>; see <a
 * href="https://github.com/google/guava/wiki/GraphsExplained#accessor-behavior">the external
 * documentation</a> for details.
 *
 * <p>Examples of use:
 *
 * {@snippet :
 * // Building a mutable graph
 * MutableGraph<String> graph = GraphBuilder.undirected().allowsSelfLoops(true).build();

 *
 * @author David Beaumont
 * @author Chris Povirk
 * @since 15.0
 */
@GwtCompatible
public final class UrlEscapers {
  private UrlEscapers() {}

  // For each xxxEscaper() method, please add links to external reference pages
  // that are considered authoritative for the behavior of that escaper.

  static final String URL_FORM_PARAMETER_OTHER_SAFE_CHARS = "-_.*";

  static final String URL_PATH_OTHER_SAFE_CHARS_LACKING_PLUS =

            dir = new File(JarFileUtil.toJarFilePath(url));
        }
        return dir;
    }

    /**
     * Converts the resource URL to an external form.
     *
     * @param url
     *            The resource URL. Must not be {@literal null}.
     * @return The external form.
     */
    public static String toExternalForm(final URL url) {
        assertArgumentNotNull("url", url);