[#11239] Update Java requirement to Java 11 (#11321)

* Update Java requirement to Java 11

* Update Gradle to 7.1.1

Author: wkurniawan07

.github/workflows/component.yml

@@ -20,10 +20,10 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2
-      - name: Set up JDK 1.8
+      - name: Set up JDK 11
         uses: actions/setup-java@v1
         with:
-          java-version: 1.8
+          java-version: 11
       - name: Cache Gradle packages
         uses: actions/cache@v2
         with:
@@ -47,10 +47,10 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2
-      - name: Set up JDK 1.8
+      - name: Set up JDK 11
         uses: actions/setup-java@v1
         with:
-          java-version: 1.8
+          java-version: 11
       - name: Cache Gradle packages
         uses: actions/cache@v2
         with:

.github/workflows/e2e.yml

@@ -20,10 +20,10 @@ jobs:
         browser: [firefox]
     steps:
       - uses: actions/checkout@v2
-      - name: Set up JDK 1.8
+      - name: Set up JDK 11
         uses: actions/setup-java@v1
         with:
-          java-version: 1.8
+          java-version: 11
       - name: Cache Gradle packages
         uses: actions/cache@v2
         with:

.github/workflows/lnp.yml

@@ -12,10 +12,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - name: Set up JDK 1.8
+      - name: Set up JDK 11
         uses: actions/setup-java@v1
         with:
-          java-version: 1.8
+          java-version: 11
       - name: Cache Gradle packages
         uses: actions/cache@v2
         with:

build.gradle

@@ -14,7 +14,7 @@ def jacocoVersion = "0.8.5"
 
 buildscript {
     repositories {
-        jcenter()
+        mavenCentral()
         maven {
             url "https://plugins.gradle.org/m2/"
         }
@@ -34,11 +34,11 @@ configurations {
 }
 
 repositories {
-    jcenter()
+    mavenCentral()
 }
 
 def objectify = "com.googlecode.objectify:objectify:6.0.7"
-def testng = "org.testng:testng:7.2.0"
+def testng = "org.testng:testng:7.4.0"
 
 dependencies {
     staticAnalysis("com.puppycrawl.tools:checkstyle:${checkstyleVersion}")
@@ -258,14 +258,14 @@ task copyDistToExplodedWar {
 
 task serverRun(type: JavaExec) {
     classpath "${explodeWar.destinationDir}/WEB-INF/lib/*", "${explodeWar.destinationDir}/WEB-INF/classes/."
-    main = "teammates.main.Application"
+    mainClass = "teammates.main.Application"
     jvmArgs "-ea", "-Djava.util.logging.config.file=${explodeWar.destinationDir}/WEB-INF/logging-dev.properties"
     dependsOn explodeWar, copyDistToExplodedWar
 }
 
 task runDatastoreEmulator(type: JavaExec) {
     classpath = sourceSets.main.runtimeClasspath
-    main = "teammates.storage.api.DatastoreEmulatorRunner"
+    mainClass = "teammates.storage.api.DatastoreEmulatorRunner"
 }
 
 appengine {
@@ -442,8 +442,8 @@ task architectureTest(type: Test) {
     options.useDefaultListeners = true
     ignoreFailures false
     maxHeapSize = "1g"
-    reports.html.enabled = false
-    reports.junitXml.enabled = false
+    reports.html.required = false
+    reports.junitXml.required = false
     jvmArgs "-Xss2m", "-Dfile.encoding=UTF-8"
     afterTest afterTestClosure
     afterSuite checkTestNgFailureClosure
@@ -472,8 +472,8 @@ task lnpTests(type: Test) {
     options.useDefaultListeners = true
     ignoreFailures false
     maxHeapSize = "1g"
-    reports.html.enabled = false
-    reports.junitXml.enabled = false
+    reports.html.required = false
+    reports.junitXml.required = false
     jvmArgs "-Xss2m", "-Dfile.encoding=UTF-8"
     afterTest afterTestClosure
     afterSuite checkTestNgFailureClosure
@@ -503,8 +503,8 @@ task componentTests(type: Test) {
     options.useDefaultListeners = true
     ignoreFailures false
     maxHeapSize = "1g"
-    reports.html.enabled = false
-    reports.junitXml.enabled = false
+    reports.html.required = false
+    reports.junitXml.required = false
     jvmArgs "-ea", "-Xss2m", "-Dfile.encoding=UTF-8"
     afterTest afterTestClosure
     afterSuite checkTestNgFailureClosure
@@ -529,8 +529,8 @@ task e2eTests {
         options.useDefaultListeners = true
         ignoreFailures = !isLastRetry
         maxHeapSize = "1g"
-        reports.html.enabled = false
-        reports.junitXml.enabled = false
+        reports.html.required = false
+        reports.junitXml.required = false
         jvmArgs "-Xss2m", "-Dfile.encoding=UTF-8"
         testLogging {
             events "passed"
@@ -559,25 +559,12 @@ task jacocoReport(type: JacocoReport) {
     classDirectories.from files(sourceSets.main.output)
     executionData fileTree("${buildDir}/jacoco").files
     reports {
-        xml.enabled true
-        html.enabled true
+        xml.required = true
+        html.required = true
     }
     afterEvaluate {
         classDirectories.from files(classDirectories.files.collect {
             fileTree(dir: it, exclude: ["**/*.jar"])
         })
     }
 }
-
-// Helper methods
-import groovy.xml.StreamingMarkupBuilder
-import java.nio.charset.StandardCharsets
-
-void writeXmlToPath(Node xml, String pathToWrite) {
-    new File(pathToWrite).withWriter(StandardCharsets.UTF_8.name()) { out ->
-        out << new StreamingMarkupBuilder().bind { mkp.xmlDeclaration() }
-        def xmlNodePrinter = new XmlNodePrinter(new PrintWriter(out))
-        xmlNodePrinter.preserveWhitespace = true
-        xmlNodePrinter.print(xml)
-    }
-}

docs/setting-up.md

@@ -40,7 +40,7 @@ More information can be found at [this documentation](https://help.github.com/ar
 
 These tools are necessary regardless of whether you are developing front-end or back-end:
 
-1. Install JDK 1.8.
+1. Install Java JDK 11.
 1. Install Python 3 (recommended) or Python 2.7.
 
 If you want to develop front-end, you need to install the following:

gradle.template.properties

@@ -4,8 +4,8 @@ org.gradle.daemon=false
 
 # Use this property if you want to use a JDK other than the one specified in your PATH variable.
 # Windows users should use a forward slash (/) instead of the Windows default backward slash (\) while specifying the path.
-# e.g org.gradle.java.home=/Library/Java/JavaVirtualMachines/jdk1.8.0_202.jdk/Contents/Home
-# e.g org.gradle.java.home=C:/Program Files/Java/jdk1.8.0_202
+# e.g org.gradle.java.home=/Library/Java/JavaVirtualMachines/jdk-11.jdk/Contents/Home
+# e.g org.gradle.java.home=C:/Program Files/Java/jdk-11
 # org.gradle.java.home=
 
 # Use this property if you want to use a specific Cloud SDK installation.

gradle/wrapper/gradle-wrapper.jar

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.1.1-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradle/wrapper/gradle-wrapper.properties

@@ -72,7 +72,7 @@ case "`uname`" in
   Darwin* )
     darwin=true
     ;;
-  MINGW* )
+  MSYS* | MINGW* )
     msys=true
     ;;
   NONSTOP* )
@@ -130,7 +130,7 @@ fi
 if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
-    
+
     JAVACMD=`cygpath --unix "$JAVACMD"`
 
     # We build the pattern for arguments to be converted via cygpath

gradlew

@@ -40,7 +40,7 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto init
+if "%ERRORLEVEL%" == "0" goto execute
 
 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -54,7 +54,7 @@ goto fail
 set JAVA_HOME=%JAVA_HOME:"=%
 set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
-if exist "%JAVA_EXE%" goto init
+if exist "%JAVA_EXE%" goto execute
 
 echo.
 echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
@@ -64,29 +64,14 @@ echo location of your Java installation.
 
 goto fail
 
-:init
-@rem Get command-line arguments, handling Windows variants
-
-if not "%OS%" == "Windows_NT" goto win9xME_args
-
-:win9xME_args
-@rem Slurp the command line arguments.
-set CMD_LINE_ARGS=
-set _SKIP=2
-
-:win9xME_args_slurp
-if "x%~1" == "x" goto execute
-
-set CMD_LINE_ARGS=%*
-
 :execute
 @rem Setup the command line
 
 set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
 
 @rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
 
 :end
 @rem End local scope for the variables with windows NT shell