Upgrade the compiler version to Java 17, yet still target Java 8

Author: vy

.github/workflows/build.yml

@@ -45,11 +45,11 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c   # 3.3.0
 
-      - name: Setup JDK 11
+      - name: Set up Java
         uses: actions/setup-java@3f07048e3d294f56e9b90ac5ea2c6f74e9ad0f98   # 3.7.0
         with:
           distribution: temurin
-          java-version: 11
+          java-version: 17
           java-package: jdk
           architecture: x64
           cache: maven
@@ -118,11 +118,11 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c   # 3.3.0
 
-      - name: Setup Java & GPG
+      - name: Set up Java & GPG
         uses: actions/setup-java@3f07048e3d294f56e9b90ac5ea2c6f74e9ad0f98   # 3.7.0
         with:
           distribution: temurin
-          java-version: 11
+          java-version: 17
           java-package: jdk
           architecture: x64
           cache: maven

.java-version

@@ -1 +1 @@
-11
+17

.mvn/jvm.config

@@ -1 +1,11 @@
 -Djava.awt.headless=true
+--add-exports jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED
+--add-exports jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED
+--add-exports jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED
+--add-exports jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED
+--add-exports jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED
+--add-exports jdk.compiler/com.sun.tools.javac.processing=ALL-UNNAMED
+--add-exports jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED
+--add-exports jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED
+--add-opens jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED
+--add-opens jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED

CHANGELOG.adoc

@@ -17,6 +17,8 @@ limitations under the License.
 
 == 0.x.x
 
+* Upgrade the compiler version to Java 17, yet still target Java 8 (by Volkan Yazıcı)
+
 * Support multiple and formatting-agnostic template files (for https://github.com/apache/logging-log4j-tools/issues/44[#44] by Volkan Yazıcı)
 
 * The changelog release models passed to the index template file (`.index.adoc.ftl`) is enriched with `changelogEntryCount` fields (for https://github.com/apache/logging-log4j-tools/issues/37[#37] by Volkan Yazıcı)

log4j-tools-parent/pom.xml

@@ -41,7 +41,7 @@
     <!-- `minimalJavaBuildVersion` is employed by `org.apache:apache`, which parents `org.apache.logging:logging-parent`, which parents `org.apache.logging.log4j:log4j-tools-bom`, which parents us.
          `minimalJavaBuildVersion` is used for enforcing the compiler version.
          We will use `java.version` to enforce the target JVM byte code, which is 8. -->
-    <minimalJavaBuildVersion>[11,12)</minimalJavaBuildVersion>
+    <minimalJavaBuildVersion>[17,18)</minimalJavaBuildVersion>
     <java.version>8</java.version>
 
     <!-- `project.build.outputTimestamp` is required for reproducible builds: https://maven.apache.org/guides/mini/guide-reproducible-builds.html -->

pom.xml

@@ -60,7 +60,7 @@
     <!-- `minimalJavaBuildVersion` is employed by `org.apache:apache`, which is the parent of `org.apache.logging:logging-parent`, which is the parent of us.
          `minimalJavaBuildVersion` is used for enforcing the compiler version.
          We will use `java.version` to enforce the target JVM byte code, which is 8. -->
-    <minimalJavaBuildVersion>[11,12)</minimalJavaBuildVersion>
+    <minimalJavaBuildVersion>[17,18)</minimalJavaBuildVersion>
     <java.version>8</java.version>
 
     <!-- `project.build.outputTimestamp` is required for reproducible builds: https://maven.apache.org/guides/mini/guide-reproducible-builds.html -->