Use Java 25 and Gradle 9

- Docker image includes Java 25 and Gradle 9.
- Java 25 is used to compile and test.
- Java 11 remains the minimum supported version.

Signed-off-by: Mark S. Lewis <Mark.S.Lewis@outlook.com>

Author: bestbeforetoday

.github/workflows/release.yml

@@ -25,7 +25,7 @@ jobs:
       - uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165 # v5.0.0
         with:
           distribution: "temurin"
-          java-version: 21
+          java-version: 25
       - uses: gradle/actions/setup-gradle@4d9f0ba0025fe599b4ebab900eb7f3a1d93ef4c2 # v5.0.0
       - name: Publish to GitHub Packages
         run: |
@@ -44,7 +44,7 @@ jobs:
       - uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165 # v5.0.0
         with:
           distribution: "temurin"
-          java-version: 21
+          java-version: 25
       - uses: gradle/actions/setup-gradle@4d9f0ba0025fe599b4ebab900eb7f3a1d93ef4c2 # v5.0.0
       - name: Publish to Maven Central
         run: |
@@ -75,7 +75,7 @@ jobs:
       - uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165 # v5.0.0
         with:
           distribution: "temurin"
-          java-version: 21
+          java-version: 25
       - uses: gradle/actions/setup-gradle@4d9f0ba0025fe599b4ebab900eb7f3a1d93ef4c2 # v5.0.0
       - name: Build the dependencies needed for the image
         run: ./gradlew :fabric-chaincode-docker:copyAllDeps

.github/workflows/scan.yml

@@ -27,7 +27,7 @@ jobs:
       - uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165 # v5.0.0
         with:
           distribution: temurin
-          java-version: 21
-      - uses: gradle/actions/setup-gradle@4d9f0ba0025fe599b4ebab900eb7f3a1d93ef4c2 # v5.0.0
+          java-version: 25
+      - uses: gradle/actions/setup-gradle@4d9f0ba0025fe599b4ebab900eb7f3a1d93ef4c2 # v5.0.0
       - name: Scan
         run: make scan

.github/workflows/test.yml

@@ -22,7 +22,7 @@ jobs:
       - uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165 # v5.0.0
         with:
           distribution: temurin
-          java-version: 21
+          java-version: 25
       - uses: gradle/actions/setup-gradle@4d9f0ba0025fe599b4ebab900eb7f3a1d93ef4c2 # v5.0.0
       - name: Build and Unit test
         run: ./gradlew :fabric-chaincode-shim:build
@@ -36,7 +36,7 @@ jobs:
       - uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165 # v5.0.0
         with:
           distribution: temurin
-          java-version: 21
+          java-version: 25
       - uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
         with:
           node-version: "lts/*"
@@ -72,7 +72,7 @@ jobs:
       - uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165 # v5.0.0
         with:
           distribution: temurin
-          java-version: 21
+          java-version: 25
       - uses: gradle/actions/setup-gradle@4d9f0ba0025fe599b4ebab900eb7f3a1d93ef4c2 # v5.0.0
       - name: Build Docker image
         run: ./gradlew :fabric-chaincode-docker:buildImage

build.gradle

@@ -78,7 +78,7 @@ subprojects {
     spotless {
         java {
             removeUnusedImports()
-            palantirJavaFormat('2.67.0').formatJavadoc(true)
+            palantirJavaFormat().formatJavadoc(true)
             formatAnnotations()
         }
     }

fabric-chaincode-docker/Dockerfile

@@ -1,28 +1,24 @@
-ARG JAVA_IMAGE=eclipse-temurin:21-jdk
+ARG JAVA_IMAGE=eclipse-temurin:25-jdk
 
 FROM ${JAVA_IMAGE} AS builder
-ENV DEBIAN_FRONTEND=noninteractive
 
-# Build tools
 RUN apt-get update \
-    && apt-get -y install zip unzip \       
-    && apt-get clean \
-    && rm -rf /var/lib/apt/lists/*
+    && apt-get install -y curl zip unzip
 RUN curl -s "https://get.sdkman.io" | bash
 
 SHELL ["/bin/bash", "-c"]
 
 RUN source /root/.sdkman/bin/sdkman-init.sh \
-    && sdk install gradle 8.14.3 \
+    && sdk install gradle 9.1.0 \
     && sdk install maven 3.9.11
 
 FROM ${JAVA_IMAGE} AS dependencies
 
-COPY --from=builder /root/.sdkman/candidates/gradle/current /usr/bin/gradle
-COPY --from=builder /root/.sdkman/candidates/maven/current /usr/bin/maven
+COPY --from=builder /root/.sdkman/candidates/gradle/current /opt/gradle
+COPY --from=builder /root/.sdkman/candidates/maven/current /opt/maven
 
 SHELL ["/bin/bash", "-c"]
-ENV PATH="/usr/bin/maven/bin:/usr/bin/maven/:/usr/bin/gradle:/usr/bin/gradle/bin:${PATH}"
+ENV PATH="/opt/maven/bin:/opt/gradle/bin:${PATH}"
 
 # Coping libs, scripts and sources
 ADD build/distributions/ /root/
@@ -51,15 +47,15 @@ WORKDIR /root/chaincode-java
 #Gradle doesn't run without settings.gradle file, so create one
 RUN touch settings.gradle \
     && gradle wrapper \
-    && ./gradlew --version \
+    && ./gradlew wrapper \
     && mvn -N wrapper:wrapper
 
 # Creating final javaenv image which will include all required
 # dependencies to build and compile java chaincode
 FROM ${JAVA_IMAGE}
 
 RUN apt-get update \
-    && apt-get -y install zip unzip \       
+    && apt-get install -y zip unzip \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/* \
     && mkdir -p /chaincode/input \

fabric-chaincode-shim/build.gradle

@@ -78,10 +78,6 @@ sourceSets {
 
 }
 
-jacoco {
-    toolVersion = "0.8.12"
-}
-
 jacocoTestReport {
     afterEvaluate {
         classDirectories.from = files(classDirectories.files.collect {

gradle/wrapper/gradle-wrapper.jar

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.3-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME