Require at least Java 11

.github/workflows/publish-documentation.yml

@@ -11,7 +11,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v4
         with:
-          distribution: 'zulu'
+          distribution: 'temurin'
           java-version: '21'
           cache: 'maven'
       - name: Publish Documentation

.github/workflows/publish-snapshot.yml

@@ -11,7 +11,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v4
         with:
-          distribution: 'zulu'
+          distribution: 'temurin'
           java-version: '21'
           cache: 'maven'
           server-id: ossrh

.github/workflows/release.yml

@@ -15,7 +15,7 @@ jobs:
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: '8'
+          java-version: '11'
           cache: 'maven'
           server-id: ${{ env.maven_server_id }}
           server-username: MAVEN_USERNAME

.github/workflows/sanity-check.yml

@@ -23,8 +23,8 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v4
         with:
-          distribution: 'zulu'
-          java-version: '21'
+          distribution: 'temurin'
+          java-version: '11'
           cache: 'maven'
       - name: Start broker
         run: ci/start-broker.sh

.github/workflows/test-pr.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v4
         with:
-          distribution: 'zulu'
+          distribution: 'temurin'
           java-version: '21'
           cache: 'maven'
       - name: Start broker

.github/workflows/test-rabbitmq-alphas.yml

@@ -25,7 +25,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v4
         with:
-          distribution: 'zulu'
+          distribution: 'temurin'
           java-version: '21'
           cache: 'maven'
       - name: Start broker

.github/workflows/test-supported-java-versions.yml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         distribution: [ 'temurin' ]
-        version: [ '8', '11', '17', '21', '23', '24-ea' ]
+        version: [ '11', '17', '21', '23', '24-ea' ]
         include:
           - distribution: 'semeru'
             version: '17'

.github/workflows/test.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v4
         with:
-          distribution: 'zulu'
+          distribution: 'temurin'
           java-version: '21'
           cache: 'maven'
           server-id: ossrh

README.adoc

@@ -31,7 +31,7 @@ See the https://www.rabbitmq.com/client-libraries/java-versions[RabbitMQ Java li
 
 === Pre-requisites
 
-This library requires at least Java 8, but Java 11 or more is recommended.
+This library requires at least Java 11, but Java 21 or more is recommended.
 
 === Dependencies
 
@@ -66,7 +66,7 @@ Breaking changes between releases can happen but will be kept to a minimum.
 
 == Build Instructions
 
-You need JDK 8 or later installed.
+You need JDK 11 or later installed.
 
 To build the JAR file:
 

pom.xml

@@ -348,8 +348,7 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>${maven.compiler.plugin.version}</version>
         <configuration>
-          <source>1.8</source>
-          <target>1.8</target>
+          <release>11</release>
           <compilerArgs>
             <arg>-Xlint:deprecation</arg>
             <arg>-Xlint:unchecked</arg>
@@ -678,16 +677,6 @@
         </repository>
       </distributionManagement>
     </profile>
-    <profile>
-      <id>mockito-4-on-java-8</id>
-      <activation>
-        <jdk>1.8</jdk>
-      </activation>
-      <properties>
-        <mockito.version>4.11.0</mockito.version>
-        <test-arguments>-Xshare:off</test-arguments>
-      </properties>
-    </profile>
     <profile>
       <id>jvm-test-arguments-below-java-21</id>
       <activation>
@@ -707,31 +696,6 @@
       </properties>
     </profile>
 
-    <profile>
-      <!-- this avoids a compiler warning on Java 9+ -->
-      <!-- the compiler setting is not available on Java 8 -->
-      <id>use-release-compiler-argument-on-java-9-or-more</id>
-      <activation>
-        <jdk>[9,)</jdk>
-      </activation>
-      <build>
-        <plugins>
-          <plugin>
-            <artifactId>maven-compiler-plugin</artifactId>
-            <version>${maven.compiler.plugin.version}</version>
-            <configuration>
-              <source>1.8</source>
-              <target>1.8</target>
-              <release>8</release>
-              <compilerArgs>
-                <arg>-Xlint:deprecation</arg>
-                <arg>-Xlint:unchecked</arg>
-              </compilerArgs>
-            </configuration>
-          </plugin>
-        </plugins>
-      </build>
-    </profile>
 
   </profiles>
 

src/docs/asciidoc/building.adoc

@@ -1,6 +1,6 @@
 == Building the Client
 
-You need JDK 1.8 or more installed.
+You need JDK 11 or more installed.
 
 To build the JAR file:
 

src/docs/asciidoc/index.adoc

@@ -11,7 +11,7 @@ the https://rabbitmq.com/stream.html[RabbitMQ Stream Plugin].
 It allows creating and deleting streams, as well as publishing to and consuming from
 these streams. Learn more in the <<overview.adoc#stream-client-overview,client overview>>.
 
-This library requires at least Java 8, but Java 11 or more is recommended.
+This library requires at least Java 11, but Java 21 or more is recommended.
 
 https://github.com/rabbitmq/rabbitmq-stream-perf-test[Stream PerfTest] is a performance testing tool based on this client library.
 

src/docs/asciidoc/overview.adoc

@@ -107,4 +107,4 @@ _These SPI are susceptible to change, but this should have no impact on most app
 
 == Pre-requisites
 
-This library requires at least Java 8, but Java 11 or more is recommended (CRC calculation uses methods available as of Java 9).
+This library requires at least Java 11, but Java 21 or more is recommended.