diff --git a/.gitignore b/.gitignore
index 1a9cceee3..c12ccfd2f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,7 +20,6 @@ yacy.log
 /test/DATA/
 /javadoc/
 /build/
-.gradle
 source/net/yacy/peers/operation/yacyBuildProperties.java
 /.idea/
 .idea/
diff --git a/README.md b/README.md
index dd8a6b4ca..e3b8bdd29 100644
--- a/README.md
+++ b/README.md
@@ -159,15 +159,6 @@ To start developing YaCy in **Netbeans**:
 - Open the project (File → Open Project)
 - you may directly use all the Netbeans build feature.
 
-To start developing YaCy in **IntelliJ IDEA**:
-
-- clone https://github.com/yacy/yacy_search_server.git
-- File -> New -> Project from Version Control -> URL (see above) -> Clone
-- Open or Import Project -> Gradle project -> OK
-- In the Gradle tab you can now execute the gradle tasks to build YaCy
-- Run via IDE -> Add Configuration -> + -> Gradle -> in Run Tasks add:  build run
-   - (in above line "build" is needed to make sure all needed Gradle tasks are executed before run)
-
 To join our development community, got to https://community.searchlab.eu
 
 Send pull requests to https://github.com/yacy/yacy_search_server
@@ -183,14 +174,8 @@ git clone https://github.com/yacy/yacy_search_server
 ```
 
 Compiling YaCy:
-- You need Java 1.8 or later and [Gradle](https://gradle.org/) (Gradle is downloaded automatically on first build if not present).
-- Compile: `gradlew build` - then you can `./startYACY.sh` or `./startYACY.bat`.
-- Create a release tarball and zip archive: `gradlew packageDist`.
-- Create a Windows installer release exe: `gradlew distWinInstaller`.
-- Create a macOS release: `gradlew distMacApp`.
-- Work with Eclipse or other IDE: Within the IDE you also need to start the gradle build process
-  because the servlet pages are not compiled by the IDE build process.
-  after the dist procedure, the release can be found in the build/distributions subdirectory.
+- You need Java 1.8 and ant
+- See `ant -p` for the available ant targets
 
 ## APIs and attaching software
 
diff --git a/build.gradle b/build.gradle
deleted file mode 100644
index 5bd955a76..000000000
--- a/build.gradle
+++ /dev/null
@@ -1,494 +0,0 @@
-/** for possible future use or parcl (of native apps) - 2022-02-09 (see other commented out sections below)
-buildscript {
-    dependencies {
-        classpath "org.mini2Dx:parcl:1.8.0"
-    }
-}
-*/
-
-plugins {
-    id 'java'
-    id 'distribution'
-    id 'maven-publish'
-    id 'com.github.johnrengelman.shadow' version '7.1.2' // uberJar plugin
-    id 'com.github.langmo.gradlensis' version '0.1.0'  // NSIS plugin
-}
-
-apply plugin: 'java'
-apply plugin: 'eclipse'
-apply plugin: 'application'
-/** apply plugin: "org.mini2Dx.parcl" // for possible future use parcl - 2022-02-09 */
-
-repositories {
-    mavenCentral()
-}
-
-sourceSets {
-    main {
-        java {
-	    srcDirs = ['source']
-        }
-    }
-
-    test {
-        java {
-            srcDirs = ['test/java']
-        }
-    }
-
-    htroot { // optional sourceset to have htroot servelets available/visible in development IDE
-        java {
-	    srcDirs = ['htroot']
-            exclude 'processing/**'
-            compileClasspath = configurations.compileClasspath + jar.outputs.files
-        }
-    }
-
-}
-
-group = 'net.yacy'
-version = '1.925'
-description = 'YaCy Search Server'
-java.sourceCompatibility = JavaVersion.VERSION_1_8
-java.targetCompatibility = JavaVersion.VERSION_1_8
-
-mainClassName = "net.yacy.yacy"
-// applicationDefaultJvmArgs = ["-Xmx1024m"] // // limit memory use (below gradle default)
-
-// create property store for filterTokens (here, to make sure it exist)
-project.ext.filterTokens = new Properties()
-
-/** for possible future use of parcl - 2022-02-09
-parcl {
-   exe {
-      exeName = "YaCy"
-   }
-
-   app {
-      vmArgs = ["-Xmx1g"]
-      appName = "YaCy"
-      icon = "addon/YaCy.icns"
-      applicationCategory = "Search-Engine"
-      displayName = 'YaCy Search Engine'
-      identifier = 'net.yacy'
-      copyright = 'Copyright 2021 Michael Peter Christen et al.'
-      zipName = 'YaCy.zip'
-   }
-
-   linux {
-      binName = "YaCy"
-   }
-}
-*/
-
-tasks.withType(JavaCompile) {
-    options.encoding = 'UTF-8'
-}
-
-dependencies {
-// used by YaCy code
-//  implementation project ('libbuild:J7Zip-modified') // support library in libbuild (fyi: downside groovy/gradle use internal *.class instead of *.jar = trouble in task packageDist)
-//  implementation 'net.yacy.extlib:J7Zip-modified:1.0.2' // alternatively support library from mavenLocal() repo (use publishToMavenLocal in subproject first) 
-    implementation fileTree(dir: 'lib', include: 'J7Zip-modified-1.0.2.jar') // switched back to use local lib/jar for this one library (avoiding sub-project execution w/o need)
-    implementation group: 'org.bouncycastle',   name: 'bcmail-jdk15on',     version: '1.69'
-    implementation group: 'org.apache.commons', name: 'commons-compress',   version: '1.21'
-    implementation group: 'commons-fileupload', name: 'commons-fileupload', version: '1.4'
-    implementation group: 'com.google.guava',   name: 'guava',              version: '31.0.1-jre' 
-    implementation group: 'com.hazelcast',      name: 'hazelcast',          version: '4.2.4'
-    implementation group: 'com.ibm.icu',        name: 'icu4j',              version: '63.1'
-    implementation group: 'com.twelvemonkeys.imageio', name: 'imageio-bmp', version: '3.8.1'
-    implementation group: 'com.twelvemonkeys.imageio', name: 'imageio-tiff',version: '3.8.1'
-    implementation group: 'net.jthink',         name: 'jaudiotagger',       version: '2.2.5'
-    implementation group: 'javax.servlet',      name: 'javax.servlet-api',  version: '3.1.0'
-    implementation group: 'net.sourceforge.jchardet',  name: 'jchardet',    version: '1.0' 
-    implementation group: 'jcifs',              name: 'jcifs',              version: '1.3.17'
-    implementation group: 'org.eclipse.jetty',  name: 'jetty-http',         version: '9.4.35.v20201120'
-    implementation group: 'org.eclipse.jetty',  name: 'jetty-proxy',        version: '9.4.35.v20201120'
-    implementation group: 'org.eclipse.jetty',  name: 'jetty-security',     version: '9.4.35.v20201120'
-    implementation group: 'org.eclipse.jetty',  name: 'jetty-server',       version: '9.4.35.v20201120'
-    implementation group: 'org.eclipse.jetty',  name: 'jetty-servlets',     version: '9.4.35.v20201120'
-    implementation group: 'org.eclipse.jetty',  name: 'jetty-util',         version: '9.4.35.v20201120'
-    implementation group: 'org.eclipse.jetty',  name: 'jetty-webapp',       version: '9.4.35.v20201120'
-    implementation group: 'com.jcraft',         name: 'jsch',               version: '0.1.54'
-    implementation group: 'com.googlecode.json-simple',name: 'json-simple', version: '1.1.1'
-    implementation group: 'org.jsoup',          name: 'jsoup',              version: '1.14.3'
-    implementation group: 'org.jwat',           name: 'jwat-warc',          version: '1.1.1'
-    implementation group: 'com.cybozu.labs',    name: 'langdetect',         version: '1.1-20120112'
-    implementation group: 'com.drewnoakes',     name: 'metadata-extractor', version: '2.11.0'
-    implementation group: 'org.apache.pdfbox',  name: 'pdfbox',             version: '2.0.25'
-    implementation group: 'org.apache.poi',     name: 'poi',                version: '3.17'
-    implementation group: 'org.apache.poi',     name: 'poi-scratchpad',     version: '3.17'
-    implementation group: 'org.apache.solr',    name: 'solr-core',          version: '8.8.1'
-    implementation group: 'org.apache.solr',    name: 'solr-solrj',         version: '8.8.1'
-    implementation group: 'org.bitlet',         name: 'weupnp',             version: '0.1.4'
-
-    // overwrite version for transient dependencies
-    implementation 'org.eclipse.jetty:jetty-client:9.4.35.v20201120'  // for solrj
-    implementation 'org.tukaani:xz:1.9' // commons.compress.compressors.xz uses this, but declares it as optional dependency
-
-    testImplementation 'junit:junit:4.13.2'
-}
-
-// exclude some unused/not needed automatic dependency imports
-configurations.implementation {
-    exclude group: 'com.google.code.findbugs', module: 'jsr305'
-    exclude group: 'org.eclipse.jetty',        module: 'jetty-alpn-client'
-    exclude group: 'org.eclipse.jetty',        module: 'jetty-alpn-java-client'
-    exclude group: 'org.eclipse.jetty',        module: 'jetty-alpn-java-server'
-    exclude group: 'org.eclipse.jetty',        module: 'jetty-alpn-server'
-    // warning 'Class path contains multiple SLF4J bindings' 
-    exclude group: 'org.slf4j',                module: 'slf4j-log4j12'
-}
-
-// configure jar
-jar {
-    archiveFileName = 'yacycore.jar'
-    manifest {
-        attributes(
-            "Main-Class": mainClassName ,
-            "Class-Path": configurations.runtimeClasspath.collect { it.name }.join(' ')               
-        )
-    }
-}
-
-shadowJar.zip64 = true // saw build error: Execution failed for task ':shadowJar'. shadow.org.apache.tools.zip.Zip64RequiredException: archive contains more than 65535 entries.
-
-// prepare yacyBuildProperties.java from template (needed after commits or new versions)
-// read values from property file generated by storeGitComInf tool
-import org.apache.tools.ant.filters.ReplaceTokens
-task prepYaCyProperties (type: Copy) {
-    inputs.files('gitbuildnumber.properties', sourceSets.main.java.srcDirs[0].name + "/net/yacy/peers/operation/yacyBuildProperties.java.template")
-
-    def propfile = "gitbuildnumber.properties";
-    if (project.file(propfile).exists()) { // must check otherwise any action may stop after clean on this error
-        file("gitbuildnumber.properties").withReader { 
-            Properties props = new Properties()
-            props.load(it)
-            project.ext.filterTokens.putAll(props)
-        }
-    } else { // on missing properties file use generic data  
-        logger.error("prepYaCyProperties: file " + propfile + " is missing, you should re-run storeGitComInf")
-        Properties props = new Properties()
-        String Dstr = new Date().format("yyyyMMDD")
-        String Tstr = new Date().format("yyyyMMDD-HHmmss")
-        props.put("branch","-dev")
-        props.put ("REPL_DATE",Dstr)
-        props.put ("REPL_REVISION_NR",Tstr)
-        project.ext.filterTokens.putAll(props)
-    }
-    
-    String fdirname = sourceSets.main.java.srcDirs[0].name + '/net/yacy/peers/operation'
-    from fdirname
-    include('yacyBuildProperties.java.template')
-    rename 'yacyBuildProperties.java.template', 'yacyBuildProperties.java'
-    filter(org.apache.tools.ant.filters.ReplaceTokens, tokens: project.ext.filterTokens)
-    filter(ReplaceTokens, tokens: [REPL_VERSION: project.version, REPL_PKGMANAGER:"false", REPL_RESTARTCMD: "/etc/init.d/yacy restart"]) // gradle.project.version + some defaults from ant
-    into (fdirname)
-    
-}
-compileJava.dependsOn(prepYaCyProperties) // must be executed before compile (due to source template filtering)
-
-// implement ant task to simulate old Ant build for htroot,
-// to avoid import of complete build.xml (as currently used)
-task compileHtrootServlets (dependsOn: ['jar']) {
-    inputs.files(fileTree('htroot') { // allow lifecycle UP-TO-DATE even with doLast block
-        include '**/*.java'
-        include '**/*.class'  // to detect missing class file
-        exclude 'processing/**'
-        })
-    outputs.files(fileTree('htroot') {
-        include '**/*.class'
-        })
-
-    doLast{
-        if (file(jar.archiveFile).exists()) { // prevent buildscript failing on prime build with fresh git clone due to javac error during gradle init
-            // logger.warn("if java files changed in source AND htroot at the same time and build fails during 'Configure project' with javac error -> delete build/libs/yacycore.jar or build directory once")
-            ant {
-                path(id:'project.class.path') {
-                    // place yacycore.jar on classpath (not automatically done)
-                    pathelement (location: jar.archiveFile.get())
-                    // construct path elements
-                    configurations.compileClasspath.each { pathelement (location: it) }
-                }
-                javac (srcdir:'htroot', excludes:'processing/**',
-                    source:java.sourceCompatibility, target:java.targetCompatibility,
-                    debug:"true", debuglevel:"lines,vars,source", includeantruntime:"false", encoding:"UTF-8") {
-                    classpath (refid:'project.class.path')
-                }
-            }
-        }
-    }
-}
-
-// copy additional files into directory used to create distribution archive (distZip/distTar)
-task copyFilesToDistDir (type: Copy, dependsOn : ['jar', 'compileHtrootServlets']) {  
-    String instDir = "$buildDir/RELEASE/MAIN/" 
-
-    from projectDir
-    include 'addon/**'
-    include 'bin/**'
-    include 'defaults/**'
-    include 'examples/**'
-    include 'gradle/**'
-    include 'htroot/**'
-    include 'langdetect/**'
-    // include 'lib/**'  // do not copy old ant lib, gradle dependencies will be copied into lib by task copy copyDependenciesForDistribution
-    include 'libbuild/**'
-    include 'locales/**'
-    include 'skins/**'
-    include 'source/**'
-//    include 'vocabularies/**' // not included in prev releases
-
-    include '*.bat' 
-    include '*.sh'
-    include 'gradlew'
-    include 'AUTHORS'
-    include 'COPYRIGHT'
-    include 'NOTICE'
-    include 'readme.txt'
-    include 'ChangeLog'
-    include 'gpl.txt'
-    include 'yacy.yellow'
-    include '*.properties'
-    include 'build.gradle'
-    include 'settings.gradle'
-    include 'build.xml'
-
-    exclude '**/build/**'
-    exclude '**/target/**'
-
-    into instDir
-}
-
-distZip.dependsOn(copyFilesToDistDir)
-distTar.dependsOn(copyFilesToDistDir)
-
-// declare distribution source directory to be added to archives
-distributions {
-    main {
-        // Gradle appends always the version to the BaseName so this doesn't work, 
-        // legacy archive name must be archieved by file rename
-        //
-        // String Dst = project.ext.filterTokens.get('REPL_DATE')
-        // String rNr = project.ext.filterTokens.get('REPL_REVISION_NR')
-        // String branch = project.ext.filterTokens.get('branch')
-        //
-        // distributionBaseName = 'yacy' + branch + '_v' + project.version + '_' + Dst + '_' + rNr
-        
-        contents { // fyi: content completed by copyFilesToDistDir
-            from "${buildDir}/RELEASE/MAIN"
-            exclude "lib/**" // lib dir is only for packageDist created
-            // define unix/linux file permission
-            eachFile { file ->
-                if(file.getName().endsWith(".sh")) {
-                    file.setMode(0755)
-                }
-            }
-        }
-    }
-}
-
-// configure distTar archive name
-tasks.findByName('assembleDist').dependsOn('prepYaCyProperties') // make sure poperties are loaded before distTar/distZip
-distTar {
-    compression 'GZIP'
-    archiveExtension = 'tar.gz'
-    String Dst = project.ext.filterTokens.get('REPL_DATE')
-    String rNr = project.ext.filterTokens.get('REPL_REVISION_NR')
-    String branch = project.ext.filterTokens.get('branch')
-    archiveVersion = '' // important as otherwise version is added automatically again to the end of archiveBaseName
-    archiveBaseName = 'yacy' + branch + '_v' + project.version + '_' + Dst + '_' + rNr // important to use project.version otherwise depreciated distZip.version is used (wich is now '')
-}
-
-// configure distZip archive name
-distZip {
-    String Dst = project.ext.filterTokens.get('REPL_DATE')
-    String rNr = project.ext.filterTokens.get('REPL_REVISION_NR')
-    String branch = project.ext.filterTokens.get('branch')
-    archiveVersion = '' // important as otherwise version is added automatically again to the end of archiveBaseName
-    archiveBaseName = 'yacy' + branch + '_v' + project.version + '_' + Dst + '_' + rNr // important to use project.version otherwise depreciated distZip.version is used (wich is now '')
-}
-
-// copy runtime dependencies (jar) to the distribution directory
-task copyDependenciesForDistribution (type: Copy) {
-    // do a late copy of dependencies to dist lib directory to not interfere with standard distZip
-    // which includes the lib (and bin) directory by default
-    // actually if copied early (e.g. task copyFilesToDistDir) final Gradle zip/tar archive has all files double in lib dir (believe it or not)
-
-    String instDir = "$buildDir/RELEASE/MAIN/"
-    // needed for legacy distribution file (task packageDist) - (fyi: gradle.distZip/Tar includes it autom. in dist archive)
-    from configurations.runtimeClasspath
-    from jar.outputs.files  // add own jar (not included automatically)
-    into instDir + "lib" 
-}
-
-// create a legacy distribution zip archive
-task packageDistZip (type : Zip, dependsOn : ['copyDependenciesForDistribution','copyFilesToDistDir','prepYaCyProperties'] ) {
-
-    String Dst = project.ext.filterTokens.get('REPL_DATE')
-    String rNr = project.ext.filterTokens.get('REPL_REVISION_NR')
-    String branch = project.ext.filterTokens.get('branch')    
-    String destName = 'yacy' + branch + '_v' + project.version + '_' + Dst + '_' + rNr + '.' + archiveExtension.get()
-
-    archiveFileName = destName
-    destinationDirectory = layout.buildDirectory.dir('distributions/legacyDistFiles')
-
-    from layout.buildDirectory.dir("RELEASE/MAIN")
-    into 'yacy'
-}
-
-// create a legacy distribution gz/tar archive
-task packageDistTar (type : Tar, dependsOn : ['copyDependenciesForDistribution','copyFilesToDistDir','prepYaCyProperties']) {
-
-    compression 'GZIP'
-    String Dst = project.ext.filterTokens.get('REPL_DATE')
-    String rNr = project.ext.filterTokens.get('REPL_REVISION_NR')
-    String branch = project.ext.filterTokens.get('branch')    
-    String destName = 'yacy' + branch + '_v' + project.version + '_' + Dst + '_' + rNr + '.tar.gz' // ! Gradle would use ext .tgz (archiveExtension.get()) 
-
-    archiveFileName = destName
-    destinationDirectory = layout.buildDirectory.dir('distributions/legacyDistFiles')
-    from layout.buildDirectory.dir("RELEASE/MAIN") 
-    fileMode 0644
-    eachFile { file ->
-        if(file.getName().endsWith(".sh")) {
-            file.setMode(0755)
-        }
-    }
-    into 'yacy'
-}
-
-// wrapper to create legacy distribution archives
-task packageDist (dependsOn : ['packageDistZip','packageDistTar'],group:'distribution') {
-    description 'Create legacy distribution tar.gz and zip archives'
-    // do a late copy of dependencies to dist lib directory to not interfere with standard distZip
-    // which includes the lib (and bin) directory by default (task copyDependenciesForDistribution)
-    // actually if copied early (e.g. in task copyFilesToDistDir) final Gradle zip/tar archive has all files double in lib dir (believe it or not)
-}
-
-// configure Javadoc task
-tasks.withType (Javadoc) {
-    destinationDir  project.file("javadoc")
-    title = "YaCy " + project.version + " API Documentation"
-    failOnError = false
-    options.addStringOption("encoding","UTF-8" ) // or any reason to keep the old "iso-8859-1" ?
-    classpath = configurations.compileClasspath
-    includes = ['**/*.java']
-}
-
-// some legacy stuff packaged in separate archive
-// archive in build/distributions
-task packagePortalsearch (group:'distribution') {
-    description 'Bundles the javascript portalsearch as *.tar.gz distribution'
-    ant {
-        tar(destfile:"${buildDir}/distributions/yacy-portalsearch.tar.gz", compression:'gzip', defaultexcludes:'yes', longfile:'fail') {
-            tarfileset (dir:'htroot/portalsearch/', prefix:'yacy/portalsearch/') {
-                include(name:'**/*')
-            }
-            tarfileset (dir:'htroot/jquery/', prefix:'yacy/jquery/') {
-                include(name:'**/*')
-            }
-            tarfileset (dir:"htroot/yacy/ui/img-2", prefix:'yacy/ui/img-2/') {
-                include(name:"magnify.png")
-                include(name:"cancel_round.png")
-                include(name:"stop.png")
-            }
-        }  
-    }
-}
-
-// Configuration of gradle-nsis plugin.
-nsis  {
-    // path to the NSIS configuration file
-    configuration = file("${buildDir}/RELEASE/WINDOWS/build.nsi")
-    // folder where the NSIS installer generator is run. All paths 
-    // in the NSIS configuration file are relative to this folder.
-    runIn =  file("${buildDir}")
-}
-
-// prepare the NSIS build script 
-task prepNsis (type: Copy, dependsOn: ['prepYaCyProperties']) {
-    from projectDir
-    include 'build.nsi'
-    include 'gpl.txt'
-    into "${buildDir}/RELEASE/WINDOWS"
-
-    filter(org.apache.tools.ant.filters.ReplaceTokens, tokens: project.ext.filterTokens)
-    filter(ReplaceTokens, tokens: [REPL_VERSION: project.version])
-
-    copy {
-        from projectDir
-        include 'gpl.txt'
-        into buildDir
-    }
-}
-
-// wrapper to run prepNsis task before nsis createInstaller, to copy some config files
-task distWinInstaller (dependsOn:['copyFilesToDistDir','copyDependenciesForDistribution','prepNsis','createInstaller'], group:'distribution') {
-    description 'Creates a Win installer distribution exe file'
-    tasks.findByName('createInstaller').mustRunAfter 'prepNsis'
-}
-
-// runs the support tool which creates gitbuildnumber.properties from info of local git repository
-task storeGitComInf(type: JavaExec) {
-    outputs.file "gitbuildnumber.properties"
-    mustRunAfter(build)
-    if (file(".git").exists()) { // check if this is a git repos
-        inputs.files ( fileTree(".git") {
-            include "refs/**/*"  // these two should work and change after commit
-            include "index"
-        } )
-    }
-    classpath = files('libbuild/GitComInf-1.0-all.jar')
-    args = [project.projectDir.getPath(), project.projectDir.getPath() + "/gitbuildnumber.properties"]
-    mainClass = 'GitComInf'
-}
-
-//--- build aliases : define a synonym here if you want a shortcut to run multiple targets
-// workaround to run storeGitComInf after a build without adding arbitray dependencies 
-// this makes sure gitbuildnumber.properties is availabel and up-to-date
-def buildAliases = [
-   'build' : ['build','storeGitComInf']
-    ]
-def expandedTaskList = []
-gradle.startParameter.taskNames.each {
-    expandedTaskList << (buildAliases[it] ? buildAliases[it] : it)
-}
-gradle.startParameter.taskNames = expandedTaskList.flatten()
-
-// create a Mac distribution archive
-import org.apache.tools.ant.taskdefs.condition.Os
-task distMacApp (type: Copy, dependsOn: ['copyFilesToDistDir','copyDependenciesForDistribution'], group: 'distribution') {
-    description 'Bundles the project as a Mac distribution - task must run on Mac'
- 
-    from "${buildDir}/RELEASE/MAIN"  // remember var substitution requires double quote
-    into "${buildDir}/RELEASE/MAC/YaCy.app/Contents/MacOS"
-
-    doLast {   
-        if (Os.isFamily(Os.FAMILY_MAC))  {
-            eachFile { file ->
-                if(file.getName().endsWith(".sh")) {
-                    file.setMode(0755)
-                }
-            }
-            copy {
-                from 'addon/YaCy.app'
-                into "${buildDir}/RELEASE/MAC/YaCy.app"
-            }
-            String Dst = project.ext.filterTokens.get('REPL_DATE')
-            String rNr = project.ext.filterTokens.get('REPL_REVISION_NR')
-            String branch = project.ext.filterTokens.get('branch')    
-            String theArchiveName = 'yacy' + branch + '_v' + project.version + '_' + Dst + '_' + rNr + '.dmg'
-            logger.info("task 'distMacApp' execute: " + "'hdiutil create -srcfolder ${buildDir}/RELEASE/MAC/YaCy.app ${buildDir}/distributions/" + theArchiveName + "'")
-            ant {
-                exec (executable:'hdiutil') {
-                    arg (line: "create -srcfolder ${buildDir}/RELEASE/MAC/YaCy.app ${buildDir}/distributions/" + theArchiveName)
-                }
-            }
-        } else {
-            logger.error ("this task 'distMacApp' can only run on a Mac")
-            delete "${buildDir}/RELEASE/MAC"
-        }
-    }
-}
-
diff --git a/gradle.properties b/gradle.properties
deleted file mode 100644
index f97ebb7d3..000000000
--- a/gradle.properties
+++ /dev/null
@@ -1 +0,0 @@
-org.gradle.parallel=true
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
deleted file mode 100644
index 7454180f2..000000000
Binary files a/gradle/wrapper/gradle-wrapper.jar and /dev/null differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
deleted file mode 100644
index 2e6e5897b..000000000
--- a/gradle/wrapper/gradle-wrapper.properties
+++ /dev/null
@@ -1,5 +0,0 @@
-distributionBase=GRADLE_USER_HOME
-distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip
-zipStoreBase=GRADLE_USER_HOME
-zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
deleted file mode 100755
index c53aefaa5..000000000
--- a/gradlew
+++ /dev/null
@@ -1,234 +0,0 @@
-#!/bin/sh
-
-#
-# Copyright © 2015-2021 the original authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      https://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-##############################################################################
-#
-#   Gradle start up script for POSIX generated by Gradle.
-#
-#   Important for running:
-#
-#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
-#       noncompliant, but you have some other compliant shell such as ksh or
-#       bash, then to run this script, type that shell name before the whole
-#       command line, like:
-#
-#           ksh Gradle
-#
-#       Busybox and similar reduced shells will NOT work, because this script
-#       requires all of these POSIX shell features:
-#         * functions;
-#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
-#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
-#         * compound commands having a testable exit status, especially «case»;
-#         * various built-in commands including «command», «set», and «ulimit».
-#
-#   Important for patching:
-#
-#   (2) This script targets any POSIX shell, so it avoids extensions provided
-#       by Bash, Ksh, etc; in particular arrays are avoided.
-#
-#       The "traditional" practice of packing multiple parameters into a
-#       space-separated string is a well documented source of bugs and security
-#       problems, so this is (mostly) avoided, by progressively accumulating
-#       options in "$@", and eventually passing that to Java.
-#
-#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
-#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
-#       see the in-line comments for details.
-#
-#       There are tweaks for specific operating systems such as AIX, CygWin,
-#       Darwin, MinGW, and NonStop.
-#
-#   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
-#       within the Gradle project.
-#
-#       You can find Gradle at https://github.com/gradle/gradle/.
-#
-##############################################################################
-
-# Attempt to set APP_HOME
-
-# Resolve links: $0 may be a link
-app_path=$0
-
-# Need this for daisy-chained symlinks.
-while
-    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
-    [ -h "$app_path" ]
-do
-    ls=$( ls -ld "$app_path" )
-    link=${ls#*' -> '}
-    case $link in             #(
-      /*)   app_path=$link ;; #(
-      *)    app_path=$APP_HOME$link ;;
-    esac
-done
-
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
-APP_BASE_NAME=${0##*/}
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
-
-# Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD=maximum
-
-warn () {
-    echo "$*"
-} >&2
-
-die () {
-    echo
-    echo "$*"
-    echo
-    exit 1
-} >&2
-
-# OS specific support (must be 'true' or 'false').
-cygwin=false
-msys=false
-darwin=false
-nonstop=false
-case "$( uname )" in                #(
-  CYGWIN* )         cygwin=true  ;; #(
-  Darwin* )         darwin=true  ;; #(
-  MSYS* | MINGW* )  msys=true    ;; #(
-  NONSTOP* )        nonstop=true ;;
-esac
-
-CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
-
-
-# Determine the Java command to use to start the JVM.
-if [ -n "$JAVA_HOME" ] ; then
-    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
-        # IBM's JDK on AIX uses strange locations for the executables
-        JAVACMD=$JAVA_HOME/jre/sh/java
-    else
-        JAVACMD=$JAVA_HOME/bin/java
-    fi
-    if [ ! -x "$JAVACMD" ] ; then
-        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
-
-Please set the JAVA_HOME variable in your environment to match the
-location of your Java installation."
-    fi
-else
-    JAVACMD=java
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-
-Please set the JAVA_HOME variable in your environment to match the
-location of your Java installation."
-fi
-
-# Increase the maximum file descriptors if we can.
-if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
-    case $MAX_FD in #(
-      max*)
-        MAX_FD=$( ulimit -H -n ) ||
-            warn "Could not query maximum file descriptor limit"
-    esac
-    case $MAX_FD in  #(
-      '' | soft) :;; #(
-      *)
-        ulimit -n "$MAX_FD" ||
-            warn "Could not set maximum file descriptor limit to $MAX_FD"
-    esac
-fi
-
-# Collect all arguments for the java command, stacking in reverse order:
-#   * args from the command line
-#   * the main class name
-#   * -classpath
-#   * -D...appname settings
-#   * --module-path (only if needed)
-#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
-
-# For Cygwin or MSYS, switch paths to Windows format before running java
-if "$cygwin" || "$msys" ; then
-    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
-    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
-
-    JAVACMD=$( cygpath --unix "$JAVACMD" )
-
-    # Now convert the arguments - kludge to limit ourselves to /bin/sh
-    for arg do
-        if
-            case $arg in                                #(
-              -*)   false ;;                            # don't mess with options #(
-              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
-                    [ -e "$t" ] ;;                      #(
-              *)    false ;;
-            esac
-        then
-            arg=$( cygpath --path --ignore --mixed "$arg" )
-        fi
-        # Roll the args list around exactly as many times as the number of
-        # args, so each arg winds up back in the position where it started, but
-        # possibly modified.
-        #
-        # NB: a `for` loop captures its iteration list before it begins, so
-        # changing the positional parameters here affects neither the number of
-        # iterations, nor the values presented in `arg`.
-        shift                   # remove old arg
-        set -- "$@" "$arg"      # push replacement arg
-    done
-fi
-
-# Collect all arguments for the java command;
-#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
-#     shell script including quotes and variable substitutions, so put them in
-#     double quotes to make sure that they get re-expanded; and
-#   * put everything else in single quotes, so that it's not re-expanded.
-
-set -- \
-        "-Dorg.gradle.appname=$APP_BASE_NAME" \
-        -classpath "$CLASSPATH" \
-        org.gradle.wrapper.GradleWrapperMain \
-        "$@"
-
-# Use "xargs" to parse quoted args.
-#
-# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
-#
-# In Bash we could simply go:
-#
-#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
-#   set -- "${ARGS[@]}" "$@"
-#
-# but POSIX shell has neither arrays nor command substitution, so instead we
-# post-process each arg (as a line of input to sed) to backslash-escape any
-# character that might be a shell metacharacter, then use eval to reverse
-# that process (while maintaining the separation between arguments), and wrap
-# the whole thing up as a single "set" statement.
-#
-# This will of course break if any of these variables contains a newline or
-# an unmatched quote.
-#
-
-eval "set -- $(
-        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
-        xargs -n1 |
-        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
-        tr '\n' ' '
-    )" '"$@"'
-
-exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
deleted file mode 100644
index ac1b06f93..000000000
--- a/gradlew.bat
+++ /dev/null
@@ -1,89 +0,0 @@
-@rem
-@rem Copyright 2015 the original author or authors.
-@rem
-@rem Licensed under the Apache License, Version 2.0 (the "License");
-@rem you may not use this file except in compliance with the License.
-@rem You may obtain a copy of the License at
-@rem
-@rem      https://www.apache.org/licenses/LICENSE-2.0
-@rem
-@rem Unless required by applicable law or agreed to in writing, software
-@rem distributed under the License is distributed on an "AS IS" BASIS,
-@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-@rem See the License for the specific language governing permissions and
-@rem limitations under the License.
-@rem
-
-@if "%DEBUG%" == "" @echo off
-@rem ##########################################################################
-@rem
-@rem  Gradle startup script for Windows
-@rem
-@rem ##########################################################################
-
-@rem Set local scope for the variables with windows NT shell
-if "%OS%"=="Windows_NT" setlocal
-
-set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
-set APP_BASE_NAME=%~n0
-set APP_HOME=%DIRNAME%
-
-@rem Resolve any "." and ".." in APP_HOME to make it shorter.
-for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
-
-@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
-
-@rem Find java.exe
-if defined JAVA_HOME goto findJavaFromJavaHome
-
-set JAVA_EXE=java.exe
-%JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
-
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:findJavaFromJavaHome
-set JAVA_HOME=%JAVA_HOME:"=%
-set JAVA_EXE=%JAVA_HOME%/bin/java.exe
-
-if exist "%JAVA_EXE%" goto execute
-
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:execute
-@rem Setup the command line
-
-set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
-
-
-@rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
-
-:end
-@rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
-
-:fail
-rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
-rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
-
-:mainEnd
-if "%OS%"=="Windows_NT" endlocal
-
-:omega
diff --git a/libbuild/GitComInf/.gitignore b/libbuild/GitComInf/.gitignore
deleted file mode 100644
index 1b6985c00..000000000
--- a/libbuild/GitComInf/.gitignore
+++ /dev/null
@@ -1,5 +0,0 @@
-# Ignore Gradle project-specific cache directory
-.gradle
-
-# Ignore Gradle build output directory
-build
diff --git a/libbuild/GitComInf/build.gradle b/libbuild/GitComInf/build.gradle
deleted file mode 100644
index f71307792..000000000
--- a/libbuild/GitComInf/build.gradle
+++ /dev/null
@@ -1,47 +0,0 @@
-
-plugins {
-    id 'java'
-    id 'application'
-    id 'com.github.johnrengelman.shadow' version '7.1.2'
-}
-
-apply plugin: 'java'
-apply plugin: 'application'
-apply plugin: 'com.github.johnrengelman.shadow'
-
-repositories {
-    mavenCentral()
-}
-
-mainClassName = "GitComInf"
-version = "1.0"
-
-tasks.withType(JavaCompile) {
-    options.encoding = 'UTF-8'
-}
-
-dependencies {
-    implementation group: 'org.eclipse.jgit', name: 'org.eclipse.jgit', version: '5.13.0.202109080827-r'
-    implementation group: 'org.slf4j', name: 'slf4j-api', version: '1.7.33' // to prevent warning msg about missing binding
-    implementation group: 'org.slf4j', name: 'slf4j-simple', version: '1.7.33'
-}
-/*
-jar {
-    manifest {
-        attributes(
-            "Main-Class": mainClassName ,
-            "Class-Path": configurations.runtimeClasspath.collect { it.name }.join(' ')               
-        )
-    }
-}
-*/
-// copy fat-jar to deploy location ..
-task installJarToRoot (type: Copy, dependsOn: shadowJar) {
-    description 'Install jar in libbuild directory'  
-    from shadowJar.archiveFile
-    into project.projectDir.getParent()
-    doLast {
-        logger.lifecycle ("copied jar to ${projectDir.getParent()}/" + shadowJar.archiveFileName.get())
-    }
-}
-
diff --git a/libbuild/GitComInf/gradle/wrapper/gradle-wrapper.jar b/libbuild/GitComInf/gradle/wrapper/gradle-wrapper.jar
deleted file mode 100644
index 7454180f2..000000000
Binary files a/libbuild/GitComInf/gradle/wrapper/gradle-wrapper.jar and /dev/null differ
diff --git a/libbuild/GitComInf/gradle/wrapper/gradle-wrapper.properties b/libbuild/GitComInf/gradle/wrapper/gradle-wrapper.properties
deleted file mode 100644
index 2e6e5897b..000000000
--- a/libbuild/GitComInf/gradle/wrapper/gradle-wrapper.properties
+++ /dev/null
@@ -1,5 +0,0 @@
-distributionBase=GRADLE_USER_HOME
-distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip
-zipStoreBase=GRADLE_USER_HOME
-zipStorePath=wrapper/dists
diff --git a/libbuild/GitComInf/gradlew b/libbuild/GitComInf/gradlew
deleted file mode 100644
index c53aefaa5..000000000
--- a/libbuild/GitComInf/gradlew
+++ /dev/null
@@ -1,234 +0,0 @@
-#!/bin/sh
-
-#
-# Copyright © 2015-2021 the original authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      https://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-##############################################################################
-#
-#   Gradle start up script for POSIX generated by Gradle.
-#
-#   Important for running:
-#
-#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
-#       noncompliant, but you have some other compliant shell such as ksh or
-#       bash, then to run this script, type that shell name before the whole
-#       command line, like:
-#
-#           ksh Gradle
-#
-#       Busybox and similar reduced shells will NOT work, because this script
-#       requires all of these POSIX shell features:
-#         * functions;
-#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
-#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
-#         * compound commands having a testable exit status, especially «case»;
-#         * various built-in commands including «command», «set», and «ulimit».
-#
-#   Important for patching:
-#
-#   (2) This script targets any POSIX shell, so it avoids extensions provided
-#       by Bash, Ksh, etc; in particular arrays are avoided.
-#
-#       The "traditional" practice of packing multiple parameters into a
-#       space-separated string is a well documented source of bugs and security
-#       problems, so this is (mostly) avoided, by progressively accumulating
-#       options in "$@", and eventually passing that to Java.
-#
-#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
-#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
-#       see the in-line comments for details.
-#
-#       There are tweaks for specific operating systems such as AIX, CygWin,
-#       Darwin, MinGW, and NonStop.
-#
-#   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
-#       within the Gradle project.
-#
-#       You can find Gradle at https://github.com/gradle/gradle/.
-#
-##############################################################################
-
-# Attempt to set APP_HOME
-
-# Resolve links: $0 may be a link
-app_path=$0
-
-# Need this for daisy-chained symlinks.
-while
-    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
-    [ -h "$app_path" ]
-do
-    ls=$( ls -ld "$app_path" )
-    link=${ls#*' -> '}
-    case $link in             #(
-      /*)   app_path=$link ;; #(
-      *)    app_path=$APP_HOME$link ;;
-    esac
-done
-
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
-APP_BASE_NAME=${0##*/}
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
-
-# Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD=maximum
-
-warn () {
-    echo "$*"
-} >&2
-
-die () {
-    echo
-    echo "$*"
-    echo
-    exit 1
-} >&2
-
-# OS specific support (must be 'true' or 'false').
-cygwin=false
-msys=false
-darwin=false
-nonstop=false
-case "$( uname )" in                #(
-  CYGWIN* )         cygwin=true  ;; #(
-  Darwin* )         darwin=true  ;; #(
-  MSYS* | MINGW* )  msys=true    ;; #(
-  NONSTOP* )        nonstop=true ;;
-esac
-
-CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
-
-
-# Determine the Java command to use to start the JVM.
-if [ -n "$JAVA_HOME" ] ; then
-    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
-        # IBM's JDK on AIX uses strange locations for the executables
-        JAVACMD=$JAVA_HOME/jre/sh/java
-    else
-        JAVACMD=$JAVA_HOME/bin/java
-    fi
-    if [ ! -x "$JAVACMD" ] ; then
-        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
-
-Please set the JAVA_HOME variable in your environment to match the
-location of your Java installation."
-    fi
-else
-    JAVACMD=java
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-
-Please set the JAVA_HOME variable in your environment to match the
-location of your Java installation."
-fi
-
-# Increase the maximum file descriptors if we can.
-if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
-    case $MAX_FD in #(
-      max*)
-        MAX_FD=$( ulimit -H -n ) ||
-            warn "Could not query maximum file descriptor limit"
-    esac
-    case $MAX_FD in  #(
-      '' | soft) :;; #(
-      *)
-        ulimit -n "$MAX_FD" ||
-            warn "Could not set maximum file descriptor limit to $MAX_FD"
-    esac
-fi
-
-# Collect all arguments for the java command, stacking in reverse order:
-#   * args from the command line
-#   * the main class name
-#   * -classpath
-#   * -D...appname settings
-#   * --module-path (only if needed)
-#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
-
-# For Cygwin or MSYS, switch paths to Windows format before running java
-if "$cygwin" || "$msys" ; then
-    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
-    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
-
-    JAVACMD=$( cygpath --unix "$JAVACMD" )
-
-    # Now convert the arguments - kludge to limit ourselves to /bin/sh
-    for arg do
-        if
-            case $arg in                                #(
-              -*)   false ;;                            # don't mess with options #(
-              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
-                    [ -e "$t" ] ;;                      #(
-              *)    false ;;
-            esac
-        then
-            arg=$( cygpath --path --ignore --mixed "$arg" )
-        fi
-        # Roll the args list around exactly as many times as the number of
-        # args, so each arg winds up back in the position where it started, but
-        # possibly modified.
-        #
-        # NB: a `for` loop captures its iteration list before it begins, so
-        # changing the positional parameters here affects neither the number of
-        # iterations, nor the values presented in `arg`.
-        shift                   # remove old arg
-        set -- "$@" "$arg"      # push replacement arg
-    done
-fi
-
-# Collect all arguments for the java command;
-#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
-#     shell script including quotes and variable substitutions, so put them in
-#     double quotes to make sure that they get re-expanded; and
-#   * put everything else in single quotes, so that it's not re-expanded.
-
-set -- \
-        "-Dorg.gradle.appname=$APP_BASE_NAME" \
-        -classpath "$CLASSPATH" \
-        org.gradle.wrapper.GradleWrapperMain \
-        "$@"
-
-# Use "xargs" to parse quoted args.
-#
-# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
-#
-# In Bash we could simply go:
-#
-#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
-#   set -- "${ARGS[@]}" "$@"
-#
-# but POSIX shell has neither arrays nor command substitution, so instead we
-# post-process each arg (as a line of input to sed) to backslash-escape any
-# character that might be a shell metacharacter, then use eval to reverse
-# that process (while maintaining the separation between arguments), and wrap
-# the whole thing up as a single "set" statement.
-#
-# This will of course break if any of these variables contains a newline or
-# an unmatched quote.
-#
-
-eval "set -- $(
-        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
-        xargs -n1 |
-        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
-        tr '\n' ' '
-    )" '"$@"'
-
-exec "$JAVACMD" "$@"
diff --git a/libbuild/GitComInf/gradlew.bat b/libbuild/GitComInf/gradlew.bat
deleted file mode 100644
index 107acd32c..000000000
--- a/libbuild/GitComInf/gradlew.bat
+++ /dev/null
@@ -1,89 +0,0 @@
-@rem
-@rem Copyright 2015 the original author or authors.
-@rem
-@rem Licensed under the Apache License, Version 2.0 (the "License");
-@rem you may not use this file except in compliance with the License.
-@rem You may obtain a copy of the License at
-@rem
-@rem      https://www.apache.org/licenses/LICENSE-2.0
-@rem
-@rem Unless required by applicable law or agreed to in writing, software
-@rem distributed under the License is distributed on an "AS IS" BASIS,
-@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-@rem See the License for the specific language governing permissions and
-@rem limitations under the License.
-@rem
-
-@if "%DEBUG%" == "" @echo off
-@rem ##########################################################################
-@rem
-@rem  Gradle startup script for Windows
-@rem
-@rem ##########################################################################
-
-@rem Set local scope for the variables with windows NT shell
-if "%OS%"=="Windows_NT" setlocal
-
-set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
-set APP_BASE_NAME=%~n0
-set APP_HOME=%DIRNAME%
-
-@rem Resolve any "." and ".." in APP_HOME to make it shorter.
-for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
-
-@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
-
-@rem Find java.exe
-if defined JAVA_HOME goto findJavaFromJavaHome
-
-set JAVA_EXE=java.exe
-%JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
-
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:findJavaFromJavaHome
-set JAVA_HOME=%JAVA_HOME:"=%
-set JAVA_EXE=%JAVA_HOME%/bin/java.exe
-
-if exist "%JAVA_EXE%" goto execute
-
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:execute
-@rem Setup the command line
-
-set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
-
-
-@rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
-
-:end
-@rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
-
-:fail
-rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
-rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
-
-:mainEnd
-if "%OS%"=="Windows_NT" endlocal
-
-:omega
diff --git a/libbuild/GitComInf/settings.gradle b/libbuild/GitComInf/settings.gradle
deleted file mode 100644
index 15e6d6421..000000000
--- a/libbuild/GitComInf/settings.gradle
+++ /dev/null
@@ -1,13 +0,0 @@
-/*
- * This file was generated by the Gradle 'init' task.
- *
- * The settings file is used to specify which projects to include in your build.
- *
- * Detailed information about configuring a multi-project build in Gradle can be found
- * in the user manual at https://docs.gradle.org/7.3/userguide/multi_project_builds.html
- */
-
-rootProject.name = 'GitComInf'
-
-
-
diff --git a/libbuild/J7Zip-modified/build.gradle b/libbuild/J7Zip-modified/build.gradle
deleted file mode 100644
index 3599cb594..000000000
--- a/libbuild/J7Zip-modified/build.gradle
+++ /dev/null
@@ -1,72 +0,0 @@
-
-plugins {
-    id 'java-library'
-    id 'maven-publish'
-}
-
-/** Port of older support library to be build with Gradle
-previous Maven Info
-    <groupId>net.yacy.extlib</groupId>
-    <artifactId>J7Zip-modified</artifactId>
-    <packaging>jar</packaging>
-    <version>1.02</version>
-    <description>J7Zip library for YaCy sevenzipParser (not available in external maven repository)</description>
-*/
-
-sourceSets {
-    main {
-        java {
-            srcDirs = ['src']
-        }
-    }
-}
-
-version = '1.0.2'
-group = 'net.yacy.extlib'
-
-publishing {
-    publications {
-        mavenJava(MavenPublication) {
-            artifactId = 'J7Zip-modified'
-            from components.java
-            versionMapping {
-                usage('java-api') {
-                    fromResolutionOf('runtimeClasspath')
-                }
-                usage('java-runtime') {
-                    fromResolutionResult()
-                }
-            }
-            pom {
-                name = 'J7Zip'
-                description = 'J7Zip library for YaCy sevenzipParser (not available in external maven repository)'
-                licenses {
-                    license {
-                        name = 'GNU Lesser General Public License 2.1'
-                        url = 'http://www.gnu.org/licenses/lgpl-2.1.txt'
-                    }
-                }
-                scm {
-                    connection = 'scm:git:https://github.com/yacy/yacy_search_server.git'
-                    url = 'https://github.com/yacy/yacy_search_server'
-                }
-            }
-        }
-    }
-    repositories {
-        maven {
-            // change URLs to point to your repos, e.g. http://my.org/repo
-            def releasesRepoUrl = layout.buildDirectory.dir('repos/releases')
-        }
-    }
-}
-
-// copy jar to yacycore /lib directory (used as dependencies)
-task installJarToRoot (type: Copy, dependsOn: jar) {
-    from jar.archiveFile
-    into "${projectDir.getParent()}/../lib"
-    doLast {
-        logger.lifecycle ("copied jar to ${projectDir.getParent()}/../lib/" + jar.archiveFileName.get())
-    }
-}
-
diff --git a/libbuild/J7Zip-modified/gradle/wrapper/gradle-wrapper.jar b/libbuild/J7Zip-modified/gradle/wrapper/gradle-wrapper.jar
deleted file mode 100644
index 7454180f2..000000000
Binary files a/libbuild/J7Zip-modified/gradle/wrapper/gradle-wrapper.jar and /dev/null differ
diff --git a/libbuild/J7Zip-modified/gradle/wrapper/gradle-wrapper.properties b/libbuild/J7Zip-modified/gradle/wrapper/gradle-wrapper.properties
deleted file mode 100644
index e750102e0..000000000
--- a/libbuild/J7Zip-modified/gradle/wrapper/gradle-wrapper.properties
+++ /dev/null
@@ -1,5 +0,0 @@
-distributionBase=GRADLE_USER_HOME
-distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.3-bin.zip
-zipStoreBase=GRADLE_USER_HOME
-zipStorePath=wrapper/dists
diff --git a/libbuild/J7Zip-modified/gradlew b/libbuild/J7Zip-modified/gradlew
deleted file mode 100644
index c53aefaa5..000000000
--- a/libbuild/J7Zip-modified/gradlew
+++ /dev/null
@@ -1,234 +0,0 @@
-#!/bin/sh
-
-#
-# Copyright © 2015-2021 the original authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      https://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-##############################################################################
-#
-#   Gradle start up script for POSIX generated by Gradle.
-#
-#   Important for running:
-#
-#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
-#       noncompliant, but you have some other compliant shell such as ksh or
-#       bash, then to run this script, type that shell name before the whole
-#       command line, like:
-#
-#           ksh Gradle
-#
-#       Busybox and similar reduced shells will NOT work, because this script
-#       requires all of these POSIX shell features:
-#         * functions;
-#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
-#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
-#         * compound commands having a testable exit status, especially «case»;
-#         * various built-in commands including «command», «set», and «ulimit».
-#
-#   Important for patching:
-#
-#   (2) This script targets any POSIX shell, so it avoids extensions provided
-#       by Bash, Ksh, etc; in particular arrays are avoided.
-#
-#       The "traditional" practice of packing multiple parameters into a
-#       space-separated string is a well documented source of bugs and security
-#       problems, so this is (mostly) avoided, by progressively accumulating
-#       options in "$@", and eventually passing that to Java.
-#
-#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
-#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
-#       see the in-line comments for details.
-#
-#       There are tweaks for specific operating systems such as AIX, CygWin,
-#       Darwin, MinGW, and NonStop.
-#
-#   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
-#       within the Gradle project.
-#
-#       You can find Gradle at https://github.com/gradle/gradle/.
-#
-##############################################################################
-
-# Attempt to set APP_HOME
-
-# Resolve links: $0 may be a link
-app_path=$0
-
-# Need this for daisy-chained symlinks.
-while
-    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
-    [ -h "$app_path" ]
-do
-    ls=$( ls -ld "$app_path" )
-    link=${ls#*' -> '}
-    case $link in             #(
-      /*)   app_path=$link ;; #(
-      *)    app_path=$APP_HOME$link ;;
-    esac
-done
-
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
-APP_BASE_NAME=${0##*/}
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
-
-# Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD=maximum
-
-warn () {
-    echo "$*"
-} >&2
-
-die () {
-    echo
-    echo "$*"
-    echo
-    exit 1
-} >&2
-
-# OS specific support (must be 'true' or 'false').
-cygwin=false
-msys=false
-darwin=false
-nonstop=false
-case "$( uname )" in                #(
-  CYGWIN* )         cygwin=true  ;; #(
-  Darwin* )         darwin=true  ;; #(
-  MSYS* | MINGW* )  msys=true    ;; #(
-  NONSTOP* )        nonstop=true ;;
-esac
-
-CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
-
-
-# Determine the Java command to use to start the JVM.
-if [ -n "$JAVA_HOME" ] ; then
-    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
-        # IBM's JDK on AIX uses strange locations for the executables
-        JAVACMD=$JAVA_HOME/jre/sh/java
-    else
-        JAVACMD=$JAVA_HOME/bin/java
-    fi
-    if [ ! -x "$JAVACMD" ] ; then
-        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
-
-Please set the JAVA_HOME variable in your environment to match the
-location of your Java installation."
-    fi
-else
-    JAVACMD=java
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-
-Please set the JAVA_HOME variable in your environment to match the
-location of your Java installation."
-fi
-
-# Increase the maximum file descriptors if we can.
-if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
-    case $MAX_FD in #(
-      max*)
-        MAX_FD=$( ulimit -H -n ) ||
-            warn "Could not query maximum file descriptor limit"
-    esac
-    case $MAX_FD in  #(
-      '' | soft) :;; #(
-      *)
-        ulimit -n "$MAX_FD" ||
-            warn "Could not set maximum file descriptor limit to $MAX_FD"
-    esac
-fi
-
-# Collect all arguments for the java command, stacking in reverse order:
-#   * args from the command line
-#   * the main class name
-#   * -classpath
-#   * -D...appname settings
-#   * --module-path (only if needed)
-#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
-
-# For Cygwin or MSYS, switch paths to Windows format before running java
-if "$cygwin" || "$msys" ; then
-    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
-    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
-
-    JAVACMD=$( cygpath --unix "$JAVACMD" )
-
-    # Now convert the arguments - kludge to limit ourselves to /bin/sh
-    for arg do
-        if
-            case $arg in                                #(
-              -*)   false ;;                            # don't mess with options #(
-              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
-                    [ -e "$t" ] ;;                      #(
-              *)    false ;;
-            esac
-        then
-            arg=$( cygpath --path --ignore --mixed "$arg" )
-        fi
-        # Roll the args list around exactly as many times as the number of
-        # args, so each arg winds up back in the position where it started, but
-        # possibly modified.
-        #
-        # NB: a `for` loop captures its iteration list before it begins, so
-        # changing the positional parameters here affects neither the number of
-        # iterations, nor the values presented in `arg`.
-        shift                   # remove old arg
-        set -- "$@" "$arg"      # push replacement arg
-    done
-fi
-
-# Collect all arguments for the java command;
-#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
-#     shell script including quotes and variable substitutions, so put them in
-#     double quotes to make sure that they get re-expanded; and
-#   * put everything else in single quotes, so that it's not re-expanded.
-
-set -- \
-        "-Dorg.gradle.appname=$APP_BASE_NAME" \
-        -classpath "$CLASSPATH" \
-        org.gradle.wrapper.GradleWrapperMain \
-        "$@"
-
-# Use "xargs" to parse quoted args.
-#
-# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
-#
-# In Bash we could simply go:
-#
-#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
-#   set -- "${ARGS[@]}" "$@"
-#
-# but POSIX shell has neither arrays nor command substitution, so instead we
-# post-process each arg (as a line of input to sed) to backslash-escape any
-# character that might be a shell metacharacter, then use eval to reverse
-# that process (while maintaining the separation between arguments), and wrap
-# the whole thing up as a single "set" statement.
-#
-# This will of course break if any of these variables contains a newline or
-# an unmatched quote.
-#
-
-eval "set -- $(
-        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
-        xargs -n1 |
-        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
-        tr '\n' ' '
-    )" '"$@"'
-
-exec "$JAVACMD" "$@"
diff --git a/libbuild/J7Zip-modified/gradlew.bat b/libbuild/J7Zip-modified/gradlew.bat
deleted file mode 100644
index 107acd32c..000000000
--- a/libbuild/J7Zip-modified/gradlew.bat
+++ /dev/null
@@ -1,89 +0,0 @@
-@rem
-@rem Copyright 2015 the original author or authors.
-@rem
-@rem Licensed under the Apache License, Version 2.0 (the "License");
-@rem you may not use this file except in compliance with the License.
-@rem You may obtain a copy of the License at
-@rem
-@rem      https://www.apache.org/licenses/LICENSE-2.0
-@rem
-@rem Unless required by applicable law or agreed to in writing, software
-@rem distributed under the License is distributed on an "AS IS" BASIS,
-@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-@rem See the License for the specific language governing permissions and
-@rem limitations under the License.
-@rem
-
-@if "%DEBUG%" == "" @echo off
-@rem ##########################################################################
-@rem
-@rem  Gradle startup script for Windows
-@rem
-@rem ##########################################################################
-
-@rem Set local scope for the variables with windows NT shell
-if "%OS%"=="Windows_NT" setlocal
-
-set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
-set APP_BASE_NAME=%~n0
-set APP_HOME=%DIRNAME%
-
-@rem Resolve any "." and ".." in APP_HOME to make it shorter.
-for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
-
-@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
-
-@rem Find java.exe
-if defined JAVA_HOME goto findJavaFromJavaHome
-
-set JAVA_EXE=java.exe
-%JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
-
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:findJavaFromJavaHome
-set JAVA_HOME=%JAVA_HOME:"=%
-set JAVA_EXE=%JAVA_HOME%/bin/java.exe
-
-if exist "%JAVA_EXE%" goto execute
-
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:execute
-@rem Setup the command line
-
-set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
-
-
-@rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
-
-:end
-@rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
-
-:fail
-rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
-rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
-
-:mainEnd
-if "%OS%"=="Windows_NT" endlocal
-
-:omega
diff --git a/libbuild/J7Zip-modified/settings.gradle b/libbuild/J7Zip-modified/settings.gradle
deleted file mode 100644
index 6ba1b9c00..000000000
--- a/libbuild/J7Zip-modified/settings.gradle
+++ /dev/null
@@ -1,11 +0,0 @@
-/*
- * This file was generated by the Gradle 'init' task.
- *
- * The settings file is used to specify which projects to include in your build.
- *
- * Detailed information about configuring a multi-project build in Gradle can be found
- * in the user manual at https://docs.gradle.org/7.3/userguide/multi_project_builds.html
- */
-
-rootProject.name = 'J7Zip-modified'
-
diff --git a/libbuild/build.gradle b/libbuild/build.gradle
deleted file mode 100644
index 1dc185e3c..000000000
--- a/libbuild/build.gradle
+++ /dev/null
@@ -1,37 +0,0 @@
-
-allprojects {
-
-    group = 'net.yacy.libbuild'
-
-    repositories {
-        mavenCentral()
-    }
-}
-
-subprojects {
-    apply plugin: 'java'
-}
-
-version = "1.0"
-description = "Builds subprojects for yacycore and installs jars -> task: installExtLibJars"
-
-dependencies {
-    project("GitComInf")
-    project("J7Zip-modified")
-}
-
-//--- build aliases : define a synonym here if you want a shortcut to run multiple targets
-// workaround to run storeGitComInf after a build without adding arbitray dependencies 
-// this makes sure gitbuildnumber.properties is availabel and up-to-date
-def buildAliases = [
-   'installExtLibJars' : ["J7Zip-modified:installJarToRoot","GitComInf:installJarToRoot"]
-    ]
-def expandedTaskList = []
-gradle.startParameter.taskNames.each {
-    expandedTaskList << (buildAliases[it] ? buildAliases[it] : it)
-}
-gradle.startParameter.taskNames = expandedTaskList.flatten()
-
-task installExtLibJars ( group: 'build') {
-    // we use above startParameter to install GitComInf.jar, as the shadow (uber) jar is used (not avail in normal subproject properties)
-}
\ No newline at end of file
diff --git a/libbuild/gradle.properties b/libbuild/gradle.properties
deleted file mode 100644
index 3ecbaebf0..000000000
--- a/libbuild/gradle.properties
+++ /dev/null
@@ -1,7 +0,0 @@
-# Generally it is better to set the version only for release builds, build time
-# from command line using -Pversion=1.0
-#
-# Only use SNAPSHOT versions if you need to contribute your binaries to a
-# local Maven project.
-version=1.0
-
diff --git a/libbuild/gradlew b/libbuild/gradlew
deleted file mode 100644
index c53aefaa5..000000000
--- a/libbuild/gradlew
+++ /dev/null
@@ -1,234 +0,0 @@
-#!/bin/sh
-
-#
-# Copyright © 2015-2021 the original authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      https://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-##############################################################################
-#
-#   Gradle start up script for POSIX generated by Gradle.
-#
-#   Important for running:
-#
-#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
-#       noncompliant, but you have some other compliant shell such as ksh or
-#       bash, then to run this script, type that shell name before the whole
-#       command line, like:
-#
-#           ksh Gradle
-#
-#       Busybox and similar reduced shells will NOT work, because this script
-#       requires all of these POSIX shell features:
-#         * functions;
-#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
-#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
-#         * compound commands having a testable exit status, especially «case»;
-#         * various built-in commands including «command», «set», and «ulimit».
-#
-#   Important for patching:
-#
-#   (2) This script targets any POSIX shell, so it avoids extensions provided
-#       by Bash, Ksh, etc; in particular arrays are avoided.
-#
-#       The "traditional" practice of packing multiple parameters into a
-#       space-separated string is a well documented source of bugs and security
-#       problems, so this is (mostly) avoided, by progressively accumulating
-#       options in "$@", and eventually passing that to Java.
-#
-#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
-#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
-#       see the in-line comments for details.
-#
-#       There are tweaks for specific operating systems such as AIX, CygWin,
-#       Darwin, MinGW, and NonStop.
-#
-#   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
-#       within the Gradle project.
-#
-#       You can find Gradle at https://github.com/gradle/gradle/.
-#
-##############################################################################
-
-# Attempt to set APP_HOME
-
-# Resolve links: $0 may be a link
-app_path=$0
-
-# Need this for daisy-chained symlinks.
-while
-    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
-    [ -h "$app_path" ]
-do
-    ls=$( ls -ld "$app_path" )
-    link=${ls#*' -> '}
-    case $link in             #(
-      /*)   app_path=$link ;; #(
-      *)    app_path=$APP_HOME$link ;;
-    esac
-done
-
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
-APP_BASE_NAME=${0##*/}
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
-
-# Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD=maximum
-
-warn () {
-    echo "$*"
-} >&2
-
-die () {
-    echo
-    echo "$*"
-    echo
-    exit 1
-} >&2
-
-# OS specific support (must be 'true' or 'false').
-cygwin=false
-msys=false
-darwin=false
-nonstop=false
-case "$( uname )" in                #(
-  CYGWIN* )         cygwin=true  ;; #(
-  Darwin* )         darwin=true  ;; #(
-  MSYS* | MINGW* )  msys=true    ;; #(
-  NONSTOP* )        nonstop=true ;;
-esac
-
-CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
-
-
-# Determine the Java command to use to start the JVM.
-if [ -n "$JAVA_HOME" ] ; then
-    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
-        # IBM's JDK on AIX uses strange locations for the executables
-        JAVACMD=$JAVA_HOME/jre/sh/java
-    else
-        JAVACMD=$JAVA_HOME/bin/java
-    fi
-    if [ ! -x "$JAVACMD" ] ; then
-        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
-
-Please set the JAVA_HOME variable in your environment to match the
-location of your Java installation."
-    fi
-else
-    JAVACMD=java
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-
-Please set the JAVA_HOME variable in your environment to match the
-location of your Java installation."
-fi
-
-# Increase the maximum file descriptors if we can.
-if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
-    case $MAX_FD in #(
-      max*)
-        MAX_FD=$( ulimit -H -n ) ||
-            warn "Could not query maximum file descriptor limit"
-    esac
-    case $MAX_FD in  #(
-      '' | soft) :;; #(
-      *)
-        ulimit -n "$MAX_FD" ||
-            warn "Could not set maximum file descriptor limit to $MAX_FD"
-    esac
-fi
-
-# Collect all arguments for the java command, stacking in reverse order:
-#   * args from the command line
-#   * the main class name
-#   * -classpath
-#   * -D...appname settings
-#   * --module-path (only if needed)
-#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
-
-# For Cygwin or MSYS, switch paths to Windows format before running java
-if "$cygwin" || "$msys" ; then
-    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
-    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
-
-    JAVACMD=$( cygpath --unix "$JAVACMD" )
-
-    # Now convert the arguments - kludge to limit ourselves to /bin/sh
-    for arg do
-        if
-            case $arg in                                #(
-              -*)   false ;;                            # don't mess with options #(
-              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
-                    [ -e "$t" ] ;;                      #(
-              *)    false ;;
-            esac
-        then
-            arg=$( cygpath --path --ignore --mixed "$arg" )
-        fi
-        # Roll the args list around exactly as many times as the number of
-        # args, so each arg winds up back in the position where it started, but
-        # possibly modified.
-        #
-        # NB: a `for` loop captures its iteration list before it begins, so
-        # changing the positional parameters here affects neither the number of
-        # iterations, nor the values presented in `arg`.
-        shift                   # remove old arg
-        set -- "$@" "$arg"      # push replacement arg
-    done
-fi
-
-# Collect all arguments for the java command;
-#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
-#     shell script including quotes and variable substitutions, so put them in
-#     double quotes to make sure that they get re-expanded; and
-#   * put everything else in single quotes, so that it's not re-expanded.
-
-set -- \
-        "-Dorg.gradle.appname=$APP_BASE_NAME" \
-        -classpath "$CLASSPATH" \
-        org.gradle.wrapper.GradleWrapperMain \
-        "$@"
-
-# Use "xargs" to parse quoted args.
-#
-# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
-#
-# In Bash we could simply go:
-#
-#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
-#   set -- "${ARGS[@]}" "$@"
-#
-# but POSIX shell has neither arrays nor command substitution, so instead we
-# post-process each arg (as a line of input to sed) to backslash-escape any
-# character that might be a shell metacharacter, then use eval to reverse
-# that process (while maintaining the separation between arguments), and wrap
-# the whole thing up as a single "set" statement.
-#
-# This will of course break if any of these variables contains a newline or
-# an unmatched quote.
-#
-
-eval "set -- $(
-        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
-        xargs -n1 |
-        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
-        tr '\n' ' '
-    )" '"$@"'
-
-exec "$JAVACMD" "$@"
diff --git a/libbuild/gradlew.bat b/libbuild/gradlew.bat
deleted file mode 100644
index 107acd32c..000000000
--- a/libbuild/gradlew.bat
+++ /dev/null
@@ -1,89 +0,0 @@
-@rem
-@rem Copyright 2015 the original author or authors.
-@rem
-@rem Licensed under the Apache License, Version 2.0 (the "License");
-@rem you may not use this file except in compliance with the License.
-@rem You may obtain a copy of the License at
-@rem
-@rem      https://www.apache.org/licenses/LICENSE-2.0
-@rem
-@rem Unless required by applicable law or agreed to in writing, software
-@rem distributed under the License is distributed on an "AS IS" BASIS,
-@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-@rem See the License for the specific language governing permissions and
-@rem limitations under the License.
-@rem
-
-@if "%DEBUG%" == "" @echo off
-@rem ##########################################################################
-@rem
-@rem  Gradle startup script for Windows
-@rem
-@rem ##########################################################################
-
-@rem Set local scope for the variables with windows NT shell
-if "%OS%"=="Windows_NT" setlocal
-
-set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
-set APP_BASE_NAME=%~n0
-set APP_HOME=%DIRNAME%
-
-@rem Resolve any "." and ".." in APP_HOME to make it shorter.
-for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
-
-@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
-
-@rem Find java.exe
-if defined JAVA_HOME goto findJavaFromJavaHome
-
-set JAVA_EXE=java.exe
-%JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
-
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:findJavaFromJavaHome
-set JAVA_HOME=%JAVA_HOME:"=%
-set JAVA_EXE=%JAVA_HOME%/bin/java.exe
-
-if exist "%JAVA_EXE%" goto execute
-
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:execute
-@rem Setup the command line
-
-set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
-
-
-@rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
-
-:end
-@rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
-
-:fail
-rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
-rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
-
-:mainEnd
-if "%OS%"=="Windows_NT" endlocal
-
-:omega
diff --git a/libbuild/settings.gradle b/libbuild/settings.gradle
deleted file mode 100644
index a02c53a39..000000000
--- a/libbuild/settings.gradle
+++ /dev/null
@@ -1,5 +0,0 @@
-
-rootProject.name = 'libbuild'
-
-include 'GitComInf' 
-include 'J7Zip-modified'
\ No newline at end of file
diff --git a/settings.gradle b/settings.gradle
deleted file mode 100644
index 1bff82ebd..000000000
--- a/settings.gradle
+++ /dev/null
@@ -1,2 +0,0 @@
-rootProject.name = 'yacycore'
-