Run CI with Java 11 and 21

Author: carlosame

.github/workflows/build.yml

@@ -28,7 +28,7 @@ jobs:
 
     strategy:
       matrix:
-        java: [ '11', '17' ]
+        java: [ '11', '21' ]
 
     name: Java ${{ matrix.Java }} build
 

gradle/wrapper/gradle-wrapper.jar

@@ -205,7 +205,7 @@ fi
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Collect all arguments for the java command:
-#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
 #     and any embedded shellness will be escaped.
 #   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
 #     treated as '${Hostname}' itself on the command line.