Upgraded to Gradle 7.1.

examples/java/build.gradle

@@ -1,7 +1,7 @@
 plugins {
     id 'java'
     id 'application'
-    id 'com.github.ben-manes.versions' version '0.38.0'
+    id 'com.github.ben-manes.versions' version '0.39.0'
 }
 
 // ./gradlew run
@@ -34,5 +34,5 @@ tasks.withType(JavaCompile) {
 task runExample(type: JavaExec) {
     group = 'application'
     classpath = sourceSets.main.runtimeClasspath
-    main = 'com.example.Example'
+    mainClass = 'com.example.Example'
 }

examples/java/gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

examples/java/gradlew

@@ -72,7 +72,7 @@ case "`uname`" in
   Darwin* )
     darwin=true
     ;;
-  MINGW* )
+  MSYS* | MINGW* )
     msys=true
     ;;
   NONSTOP* )