Testing Java LTS versions (#536)

* Added Gradle Tasks to run tests on Java LTS versions

* Ignore secp256k1 curve tests

* Removing ignore for tests and checking the CI failure

* Exclude secp256k1 Tests for Java 17

* Remove unwanted "ignore" imports

lib/build.gradle

@@ -55,6 +55,10 @@ dependencies {
     testImplementation 'org.mockito:mockito-core:2.18.3'
 }
 
+jacoco {
+    toolVersion = "0.8.7"
+}
+
 jacocoTestReport {
     reports {
         xml.enabled = true
@@ -87,6 +91,48 @@ task compileModuleInfoJava(type: JavaCompile) {
     }
 }
 
+compileTestJava {
+    options.compilerArgs = ['--release', "8"]
+}
+
+def testJava8 = tasks.register('testJava8', Test) {
+    description = 'Runs unit tests on Java 8.'
+    group = 'verification'
+
+    javaLauncher.set(javaToolchains.launcherFor {
+        languageVersion = JavaLanguageVersion.of(8)
+    })
+    shouldRunAfter(tasks.named('test'))
+}
+
+def testJava17 = tasks.register('testJava17', Test) {
+    description = 'Runs unit tests on Java 17.'
+    group = 'verification'
+
+    javaLauncher.set(javaToolchains.launcherFor {
+        languageVersion = JavaLanguageVersion.of(17)
+    })
+    shouldRunAfter(tasks.named('test'))
+
+    //Following Tests are excluded in Java 17 since secp256k1 curve is disabled Java 15+
+    filter {
+        excludeTestsMatching "*.jwt.ConcurrentVerifyTest.shouldPassECDSA256KVerificationWithJOSESignature"
+        excludeTestsMatching "*.jwt.JWTCreatorTest.shouldAddKeyIdIfAvailableFromECDSAKAlgorithms"
+        excludeTestsMatching "*.jwt.JWTCreatorTest.shouldNotOverwriteKeyIdIfAddedFromECDSAKAlgorithms"
+        excludeTestsMatching "*.jwt.JWTTest.shouldCreateAnEmptyECDSA256KSignedToken"
+        excludeTestsMatching "*.jwt.algorithms.ECDSAAlgorithmTest.shouldPassECDSA256KVerificationWithJOSESignature"
+        excludeTestsMatching "*.jwt.algorithms.ECDSAAlgorithmTest.shouldPassECDSA256KVerificationWithJOSESignatureWithBothKeys"
+        excludeTestsMatching "*.jwt.algorithms.ECDSAAlgorithmTest.shouldPassECDSA256KVerificationWithProvidedPublicKey"
+        excludeTestsMatching "*.jwt.ECDSABouncyCastleProviderTests.shouldPassECDSA256KVerificationWithJOSESignatureWithBothKeys"
+        excludeTestsMatching "*.jwt.ECDSABouncyCastleProviderTests.shouldPassECDSA256KVerificationWithProvidedPublicKey"
+    }
+}
+
+tasks.named('check') {
+    dependsOn(testJava8)
+    dependsOn(testJava17)
+}
+
 jar {
     manifest.attributes('Multi-Release': 'true')
 }