diff --git a/build.gradle b/build.gradle
index 773ea030..984af453 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,7 @@
-rootProject.version = '9.9.2'
+rootProject.version = "9.10.0"
 group = 'javasabr'
 
-allprojects {
+subprojects {
 
   repositories {
     mavenCentral()
@@ -11,8 +11,11 @@ allprojects {
   apply plugin: "java-test-fixtures"
   apply plugin: 'maven-publish'
 
-  sourceCompatibility = JavaVersion.VERSION_17
-  targetCompatibility = JavaVersion.VERSION_17
+  java {
+    toolchain {
+      languageVersion = JavaLanguageVersion.of(21)
+    }
+  }
 
   javadoc {
     failOnError = false
@@ -20,17 +23,21 @@ allprojects {
 
   test {
     useJUnitPlatform()
+    failOnNoDiscoveredTests = false
   }
 
   dependencies {
     compileOnly libs.jetbrains.annotations
+    compileOnly libs.jspecify
     compileOnly libs.lombok
     annotationProcessor libs.lombok
 
     testImplementation libs.junit.api
     testCompileOnly libs.lombok
     testCompileOnly libs.jetbrains.annotations
+    testCompileOnly libs.jspecify
     testRuntimeOnly libs.junit.engine
+    testRuntimeOnly libs.junit.platform.launcher
     testAnnotationProcessor libs.lombok
   }
 
@@ -44,11 +51,7 @@ allprojects {
       }
   }*/
 
-  compileJava {
-    options.encoding = "UTF-8"
-  }
-
-  compileTestJava {
+  tasks.withType(JavaCompile).configureEach {
     options.encoding = "UTF-8"
   }
 
@@ -56,20 +59,20 @@ allprojects {
     options.encoding = "UTF-8"
   }
 
-  task sourcesJar(type: Jar, dependsOn: classes) {
-    afterEvaluate {
-      getArchiveClassifier().set("sources")
-      getArchiveBaseName().set(jar.getArchiveBaseName())
-      from sourceSets.main.allSource
-    }
+  tasks.register("sourcesJar", Jar) {
+    dependsOn "classes"
+    group "build"
+    archiveClassifier = "sources"
+    archiveBaseName = jar.archiveBaseName
+    from sourceSets.main.allSource
   }
 
-  task javadocJar(type: Jar, dependsOn: javadoc) {
-    afterEvaluate {
-      getArchiveClassifier().set("javadoc")
-      getArchiveBaseName().set(jar.getArchiveBaseName())
-      from sourceSets.main.allSource
-    }
+  tasks.register("javadocJar", Jar) {
+    dependsOn "javadoc"
+    group "build"
+    archiveClassifier = "javadoc"
+    archiveBaseName = jar.archiveBaseName
+    from sourceSets.main.allSource
   }
 
   publishing {
@@ -106,7 +109,7 @@ allprojects {
   }
 
   tasks.register('testJar', Jar) {
-    getArchiveClassifier().set("test")
+    archiveClassifier = "test"
     from sourceSets.test.output
   }
 
@@ -114,14 +117,12 @@ allprojects {
     testArtifacts testJar
   }
 
-  tasks.withType(Test).tap {
-    configureEach {
-      maxParallelForks = Runtime.runtime.availableProcessors()
-    }
+  tasks.withType(Test).configureEach {
+    maxParallelForks = Runtime.runtime.availableProcessors()
   }
 }
 
 wrapper {
-  gradleVersion = '8.11.1'
+  gradleVersion = '9.0.0'
   distributionType = Wrapper.DistributionType.ALL
 }
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 59255aca..3d2ed4fc 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,26 +1,33 @@
 [versions]
 # https://mvnrepository.com/artifact/org.slf4j/slf4j-api
-slf4j = "2.0.16"
+slf4j = "2.0.17"
 # https://mvnrepository.com/artifact/io.projectreactor/reactor-core
-project-reactor = "3.7.1"
+project-reactor = "3.7.8"
 # https://mvnrepository.com/artifact/jakarta.mail/jakarta.mail-api
 jakarta-mail = "2.1.3"
-angus-mail = "2.0.3"
+# https://mvnrepository.com/artifact/org.eclipse.angus/angus-mail
+angus-mail = "2.0.4"
 # https://mvnrepository.com/artifact/org.testcontainers/testcontainers
-testcontainers = "1.20.4"
+testcontainers = "1.21.3"
 # https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter-engine
-junit-jupiter = "5.11.4"
+junit-jupiter = "5.13.4"
 # https://mvnrepository.com/artifact/org.jetbrains/annotations
-jetbrains-annotations = "26.0.1"
+jetbrains-annotations = "26.0.2"
 # https://mvnrepository.com/artifact/org.projectlombok/lombok
-lombok = "1.18.36"
+lombok = "1.18.38"
+# https://mvnrepository.com/artifact/org.jspecify/jspecify
+jspecify = "1.0.0"
+# https://mvnrepository.com/artifact/org.junit.platform/junit-platform-launcher
+junit-platform-launcher = "1.13.4"
 
 [libraries]
 project-reactor-core = { module = "io.projectreactor:reactor-core", version.ref = "project-reactor" }
 jetbrains-annotations = { module = "org.jetbrains:annotations", version.ref = "jetbrains-annotations" }
+jspecify = { module = "org.jspecify:jspecify", version.ref = "jspecify" }
 lombok = { module = "org.projectlombok:lombok", version.ref = "lombok" }
 junit-engine = { module = "org.junit.jupiter:junit-jupiter-engine", version.ref = "junit-jupiter" }
 junit-api = { module = "org.junit.jupiter:junit-jupiter-api", version.ref = "junit-jupiter" }
+junit-platform-launcher = { module = "org.junit.platform:junit-platform-launcher", version.ref = "junit-platform-launcher" }
 slf4j-api =  { module = "org.slf4j:slf4j-api", version.ref = "slf4j" }
 slf4j-simple =  { module = "org.slf4j:slf4j-simple", version.ref = "slf4j" }
 slf4j-ext =  { module = "org.slf4j:slf4j-ext", version.ref = "slf4j" }
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 41d9927a..8bdaf60c 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 11581996..48b43d35 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.11.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.0.0-all.zip
+networkTimeout=10000
+validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index 1b6c7873..ef07e016 100755
--- a/gradlew
+++ b/gradlew
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 #
-# Copyright © 2015-2021 the original authors.
+# Copyright © 2015 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.
@@ -15,6 +15,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 
 ##############################################################################
 #
@@ -55,7 +57,7 @@
 #       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
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -80,13 +82,11 @@ do
     esac
 done
 
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
+# This is normally unused
+# shellcheck disable=SC2034
 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"'
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -114,7 +114,7 @@ case "$( uname )" in                #(
   NONSTOP* )        nonstop=true ;;
 esac
 
-CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+CLASSPATH="\\\"\\\""
 
 
 # Determine the Java command to use to start the JVM.
@@ -133,22 +133,29 @@ 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.
+    if ! command -v java >/dev/null 2>&1
+    then
+        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
 fi
 
 # Increase the maximum file descriptors if we can.
 if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
     case $MAX_FD in  #(
       '' | soft) :;; #(
       *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -193,18 +200,28 @@ if "$cygwin" || "$msys" ; then
     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.
+
+# 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"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
 
 set -- \
         "-Dorg.gradle.appname=$APP_BASE_NAME" \
         -classpath "$CLASSPATH" \
-        org.gradle.wrapper.GradleWrapperMain \
+        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
         "$@"
 
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
 # Use "xargs" to parse quoted args.
 #
 # With -n1 it outputs one arg per line, with the quotes and backslashes removed.
diff --git a/gradlew.bat b/gradlew.bat
index ac1b06f9..5eed7ee8 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -13,8 +13,10 @@
 @rem See the License for the specific language governing permissions and
 @rem limitations under the License.
 @rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
 
-@if "%DEBUG%" == "" @echo off
+@if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
 @rem
 @rem  Gradle startup script for Windows
@@ -25,7 +27,8 @@
 if "%OS%"=="Windows_NT" setlocal
 
 set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
@@ -40,13 +43,13 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
+if %ERRORLEVEL% equ 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.
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
@@ -56,32 +59,34 @@ 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.
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
 :execute
 @rem Setup the command line
 
-set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+set CLASSPATH=
 
 
 @rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
 
 :end
 @rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
+if %ERRORLEVEL% equ 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
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
 
 :mainEnd
 if "%OS%"=="Windows_NT" endlocal
diff --git a/rlib-common/build.gradle b/rlib-common/build.gradle
index ab1cb739..b3fd7a24 100644
--- a/rlib-common/build.gradle
+++ b/rlib-common/build.gradle
@@ -1,7 +1,3 @@
 dependencies {
   api projects.rlibLoggerApi
 }
-
-jar {
-  archiveBaseName.set('rlib.common')
-}
\ No newline at end of file
diff --git a/rlib-fx/build.gradle b/rlib-fx/build.gradle
index 1a4eac72..e0ac566c 100644
--- a/rlib-fx/build.gradle
+++ b/rlib-fx/build.gradle
@@ -6,10 +6,6 @@ dependencies {
   api projects.rlibCommon
 }
 
-jar {
-  archiveBaseName.set('rlib.fx')
-}
-
 javafx {
   modules = ['javafx.controls']
   version = '17'
diff --git a/rlib-logger-api/build.gradle b/rlib-logger-api/build.gradle
index fe93df1d..e69de29b 100644
--- a/rlib-logger-api/build.gradle
+++ b/rlib-logger-api/build.gradle
@@ -1,3 +0,0 @@
-jar {
-  archiveBaseName.set('rlib.logger.api')
-}
\ No newline at end of file
diff --git a/rlib-logger-impl/build.gradle b/rlib-logger-impl/build.gradle
index cb9caf10..05c70c97 100644
--- a/rlib-logger-impl/build.gradle
+++ b/rlib-logger-impl/build.gradle
@@ -1,7 +1,3 @@
 dependencies {
   api projects.rlibCommon
 }
-
-jar {
-  archiveBaseName.set('rlib.logger.impl')
-}
\ No newline at end of file
diff --git a/rlib-logger-slf4j/build.gradle b/rlib-logger-slf4j/build.gradle
index c0979892..1fc24540 100644
--- a/rlib-logger-slf4j/build.gradle
+++ b/rlib-logger-slf4j/build.gradle
@@ -4,7 +4,3 @@ dependencies {
 
   testRuntime libs.slf4j.simple
 }
-
-jar {
-  archiveBaseName.set('rlib.logger.slf4j')
-}
\ No newline at end of file
diff --git a/rlib-mail/build.gradle b/rlib-mail/build.gradle
index 7fb8e2db..3f6a80e5 100644
--- a/rlib-mail/build.gradle
+++ b/rlib-mail/build.gradle
@@ -4,7 +4,3 @@ dependencies {
 
   testImplementation projects.rlibTestcontainers
 }
-
-jar {
-  archiveBaseName.set('rlib.mail')
-}
\ No newline at end of file
diff --git a/rlib-network/build.gradle b/rlib-network/build.gradle
index e36374dd..bc28de0e 100644
--- a/rlib-network/build.gradle
+++ b/rlib-network/build.gradle
@@ -3,8 +3,3 @@ dependencies {
   api libs.project.reactor.core
   testRuntimeOnly projects.rlibLoggerImpl
 }
-
-jar {
-  archiveBaseName.set('rlib.network')
-}
-
diff --git a/rlib-testcontainers/build.gradle b/rlib-testcontainers/build.gradle
index b93be804..c143c6a5 100644
--- a/rlib-testcontainers/build.gradle
+++ b/rlib-testcontainers/build.gradle
@@ -10,7 +10,3 @@ dependencies {
 
   testImplementation projects.rlibMail
 }
-
-jar {
-  archiveBaseName.set('rlib.testcontainers')
-}
\ No newline at end of file