Update minimum support Java version from 8 to 11. Fixes mockito#2798

Signed-off-by: Andriy Redko <andriy.redko@aiven.io>

.github/workflows/ci.yml

@@ -29,7 +29,7 @@ jobs:
     # Definition of the build matrix
     strategy:
       matrix:
-        java: [8, 11, 17]
+        java: [11, 17]
         mock-maker: ['mock-maker-default', 'mock-maker-inline']
 
     # All build steps
@@ -48,11 +48,11 @@ jobs:
         java-version: ${{ matrix.java }}
 
     - name: 3. Validate Gradle wrapper
-      if: matrix.java == 8 && matrix.mock-maker == 'mock-maker-default' # SINGLE-MATRIX-JOB
+      if: matrix.java == 11 && matrix.mock-maker == 'mock-maker-default' # SINGLE-MATRIX-JOB
       uses: gradle/wrapper-validation-action@v1.0.5 # https://github.com/gradle/wrapper-validation-action
 
     - name: 4. Build and check reproducibility of artifacts (single job only)
-      if: matrix.java == 8 && matrix.mock-maker == 'mock-maker-default' # SINGLE-MATRIX-JOB
+      if: matrix.java == 11 && matrix.mock-maker == 'mock-maker-default' # SINGLE-MATRIX-JOB
       run: ./check_reproducibility.sh
 
     - name: 5. Spotless check (single job only). Run './gradlew spotlessApply' locally if this job fails.

build.gradle

@@ -24,7 +24,7 @@ plugins {
     id 'eclipse'
     id 'com.github.ben-manes.versions' version '0.44.0'
     id 'biz.aQute.bnd.builder' version '6.3.1'
-    id 'ru.vyarus.animalsniffer' version '1.5.2'
+    id 'ru.vyarus.animalsniffer' version '1.6.0'
 }
 
 description = 'Mockito mock objects library core API and implementation'
@@ -52,10 +52,8 @@ allprojects { proj ->
         mavenCentral()
         google()
     }
-    if (JavaVersion.current().isCompatibleWith(JavaVersion.VERSION_11)) {
-        plugins.withId('java') {
-            proj.apply from: "$rootDir/gradle/errorprone.gradle"
-        }
+    plugins.withId('java') {
+        proj.apply from: "$rootDir/gradle/errorprone.gradle"
     }
     tasks.withType(JavaCompile) {
         //I don't believe those warnings add value given modern IDEs
@@ -66,7 +64,7 @@ allprojects { proj ->
         options.addStringOption('Xdoclint:none', '-quiet')
         options.addStringOption('encoding', 'UTF-8')
         options.addStringOption('charSet', 'UTF-8')
-        options.setSource('8')
+        options.setSource('11')
     }
 
     tasks.withType(AbstractArchiveTask) {
@@ -107,6 +105,15 @@ dependencies {
 animalsniffer {
     sourceSets = [sourceSets.main]
     annotation = 'org.mockito.internal.SuppressSignatureCheck'
+    // See please https://github.com/mojohaus/animal-sniffer/issues/172
+    ignore += [
+        'java.lang.instrument.Instrumentation',
+        'java.lang.invoke.MethodHandle',
+        'java.lang.invoke.MethodHandles$Lookup',
+        'java.lang.StackWalker',
+        'java.lang.StackWalker$StackFrame',
+        'java.lang.StackWalker$Option'
+    ]
 }
 
 spotless {

gradle.properties

@@ -4,6 +4,7 @@ org.gradle.caching=true
 org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8 \
   -XX:+IgnoreUnrecognizedVMOptions \
   --add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED \
+  --add-exports=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED \
   --add-exports=jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED \
   --add-exports=jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED \
   --add-exports=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED \

gradle/errorprone.gradle

@@ -1,12 +1,6 @@
 
 apply plugin: "net.ltgt.errorprone"
 
-if (JavaVersion.current() == JavaVersion.VERSION_1_8) {
-    dependencies {
-        errorproneJavac("com.google.errorprone:javac:9+181-r4173-1")
-    }
-}
-
 dependencies {
     errorprone libraries.errorprone
 }

gradle/java-library.gradle

@@ -14,8 +14,8 @@ generatePomFileForJavaLibraryPublication.doLast {
     assert pom.name == archivesBaseName
 }
 
-sourceCompatibility = 1.8
-targetCompatibility = 1.8
+sourceCompatibility = 11
+targetCompatibility = 11
 
 test {
     include "**/*Test.class"